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Experimental comparison of high-speed transmission control protocols on a traffic-driven labeled optical burst switching network test bed for grid applicationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
It is well known that the classic transmission control protocol (TCP) Reno is inadequate to address the requirements of emerging grid applications on an optical burst switching (OBS) network. To find the most efficient TCP in the scenario of grid over OBS, in this paper, the implementation of a ...
Source: Journal of Optical Networking - April 30, 2009 Category: Physics Authors: Lei LiuXiaobin HongJian WuYawei YinShuri CaiJintong Lin Source Type: journals

Dynamic end-to-end optimization for quality of transmission in reconfigurable transparent optical networks: erratumEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An erratum is presented to correct one mistake in Eq. 1 in our paper.
Source: Journal of Optical Networking - April 30, 2009 Category: Physics Authors: Guanjun GaoJie ZhangHua ZhangLei WangWanyi Gu Source Type: journals

Optical routers: introduction to the feature issueEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This feature issue of the Journal of Optical Networking addresses a broad scope of enabling technologies, architectures, and systems designed for next-generation optical routers.
Source: Journal of Optical Networking - April 29, 2009 Category: Physics Authors: Keren BergmanMadeleine GlickS. J. Ben Yoo Source Type: journals

60 GHz radio-over-fiber technologies for broadband wireless services [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Some of the work carried out within the European integrated project Integrated Photonic mm-Wave Functions for Broadband Connectivity (IPHOBAC) on the development of photonic components and radio-over-fiber technologies for broadband wireless communication is reviewed. In detail, 60 GHz outdoor ...
Source: Journal of Optical Networking - April 22, 2009 Category: Physics Authors: Andreas StöhrAkram AkroutRüdiger BußBenoit CharbonnierFrederic van DijkAlain EnardSascha FedderwitzDieter JägerMathieu HuchardFrédéric LecocheJavier MartiRakesh SambarajuAndreas SteffanAndreas UmbachMario Weiß Source Type: journals

Radio-over-optical fiber networks: introduction to the feature issueEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This feature issue of the Journal of Optical Networking gives a wide overview of the progress on certain key areas in the field of radio-over-optical-fiber network technologies, including the enabling technologies, architectures, and systems design.
Source: Journal of Optical Networking - April 22, 2009 Category: Physics Authors: Jianjun YuGee-Kung ChangA. M. J. KoonenGeorgios Ellinas Source Type: journals

Minimizing transceivers in optical path networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The problem of routing traffic on multihop clear optical channels and deciding the virtual topology of optical channels to form on a physical network of fibers to minimize the cost of electronic switching equipment has become known as traffic grooming in optical networks. Traffic grooming is ...
Source: Journal of Optical Networking - April 10, 2009 Category: Physics Authors: Prashant IyerRudra DuttaCarla D. Savage Source Type: journals

Spectrally efficient hybrid multiplexing and demultiplexing schemes toward the integration of microwave and millimeter-wave radio-over-fiber systems in a WDM-PON infrastructureEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Hybrid multiplexing and demultiplexing schemes with the capability to integrate microwave and millimeter-wave frequency radio-over-fiber signals in a wavelength division multiplexed passive optical network (WDM-PON) infrastructure are proposed. The proposed schemes exploit the benefits of a ...
Source: Journal of Optical Networking - April 10, 2009 Category: Physics Authors: Masuduzzaman BakaulAmpalavanapillai NirmalathasChristina LimDalma NovakRod Waterhouse Source Type: journals

Survivable and traffic-oblivious routing in WDM networks: valiant load balancing versus tree routingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This paper investigates the issue of survivable routing to prevent arbitrary single-link failures in WDM networks when the traffic information is partially known. Two novel protection schemes called valiant-load-balancing- (VLB-) based hop constraint segment protection (VLB-HCSP) and hop constraint ...
Source: Journal of Optical Networking - April 8, 2009 Category: Physics Authors: Rui DaiLemin LiSheng WangXiaoning Zhang Source Type: journals

Effect of traffic patterns on automatic polarization control with polarization and time-division multiplexed optical packet transmissionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We investigate a feedback scheme for automatic polarization control suitable for packet and burst transmission on systems using polarization and time-division-multiplexed traffic. A key feature of the control scheme is to make the packet pattern essentially invisible to the controller enabling the ...
Source: Journal of Optical Networking - April 7, 2009 Category: Physics Authors: Vegard L. TuftSteinar BjørnstadDag R. Hjelme Source Type: journals

Photonics in switching: enabling technologies and subsystem designEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This paper describes recent research activities and results in the area of photonic switching carried out within the framework of the EU-funded e-Photon/ONe+ network of excellence, Virtual Department on Optical Switching. Technology aspects of photonics in switching and, in particular, recent ...
Source: Journal of Optical Networking - April 7, 2009 Category: Physics Authors: Kyriakos VlachosCarla RaffaelliSlavisa AleksicNicola AndriolliDimitris ApostolopoulosHercules AvramopoulosDidier ErasmeDimitris KlonidisMartin Nordal PetersenMirco ScaffardiKarsten SchulzeMaria SpiropoulouStelios SygletosIoannis TomkosCarmen VazquezOlga Z Source Type: journals

Scaling Ethernet speeds to 100 Gbits/s and beyondEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Dramatic growth in Internet Protocol (IP) traffic demand is driving the need for new high-bandwidth IP interfaces. Today, router-to-router and router-to-transport system connections using Ethernet interfaces are limited to 10 Gbits/s (10GE) or slower. Although techniques, such as link aggregation, ...
Source: Journal of Optical Networking - April 7, 2009 Category: Physics Authors: Arvinder S. WanderAnujan VarmaDrew PerkinsVijay Vusirikala Source Type: journals

Light-path establishment with PID control for effective wavelength utilization in all-optical wavelength-division multiplexing networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We propose a dynamic light-path establishment method for using wavelengths effectively. In our proposed method, a proportional, integral, derivative (PID) controller is implemented in each edge node. The edge node determines the amount of data to be transmitted with PID control so that a constant ...
Source: Journal of Optical Networking - March 29, 2009 Category: Physics Authors: Takuji Tachibana Kenji Sugimoto Source Type: journals

Optically amplified passive optical networks: a power budget analysisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Passive optical networks (PONs) are being aggressively pursued as a means of delivering access network solutions. The cost benefits resulting from a reduction in the number of interfaces between nodes has enabled increasing deployment of a PON delivering fiber to the home and fiber to the curb. ...
Source: Journal of Optical Networking - March 23, 2009 Category: Physics Authors: C. MichieA. E. KellyJ. McGeoughS. KaragiannopoulosI. Andonovic Source Type: journals

Online excess bandwidth distribution for Ethernet passive optical networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Excess bandwidth distribution techniques have recently been proposed to improve the dynamic bandwidth allocation in Ethernet passive optical networks (EPONs). We compare existing offline excess bandwidth distribution with conventional limited interleaved polling with adaptive cycle time ...
Source: Journal of Optical Networking - March 23, 2009 Category: Physics Authors: Jason R. FergusonMartin ReissleinMichael P. McGarry Source Type: journals

Multiconstraints fuzzy-logic-based scheduling algorithm for passive optical networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Presented is a fuzzy-logic-based scheduling algorithm for passive optical networks (PONs) that considers four different metrics to allocate an upstream bandwidth to optical network units (ONUs). The metrics considered are the delay of the head-of-the-line packets at the ONUs, the importance level ...
Source: Journal of Optical Networking - March 13, 2009 Category: Physics Authors: R. Razavi K. Guild Source Type: journals

Bandwidth and delay guaranteed polling with adaptive cycle time (BDGPACT): a scheme for providing bandwidth and delay guarantees in passive optical networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This paper addresses the problem of providing bandwidth and delay guarantees in passive optical networks. To resolve this problem we propose an algorithm that provides absolute bandwidth and delay bound guarantees. Simulation results show that the proposed algorithm does not breach bandwidth and ...
Source: Journal of Optical Networking - March 7, 2009 Category: Physics Authors: Tomaz BerisaAlen BazantVedran Mikac Source Type: journals

Comparison of collision avoidance mechanisms for the discovery process in xPONEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Operation of all time division multiple access passive optical networks (PONs), regardless of the layer 2 protocol in use, requires the utilization of the so-called discovery process allowing for identification and registration of newly activated optical network units (ONUs). For the duration of ...
Source: Journal of Optical Networking - March 1, 2009 Category: Physics Authors: Marek Hajduczenia Henrique J. A. da Silva Source Type: journals

Frequency stabilization by dithering bias current of laser diodes for carrier-distributed WDM-based access networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We indicate that the frequency drift of WDM light sources for uplink transmission in carrier-distributed WDM-based access networks severely impacts the loss budget. To prevent this, we propose a multifrequency monitoring-stabilization technique that simplifies the configuration of WDM light ...
Source: Journal of Optical Networking - February 27, 2009 Category: Physics Authors: Masamichi FujiwaraHiro SuzukiHideaki KimuraKiyomi Kumozaki Source Type: journals

Interoperability of GPON and WiMAX for network capacity enhancement and resilienceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The interoperability of standard WiMAX and gigabit passive optical networks (GPONs) is shown to overcome the wireless spectrum congestion and provide resilience for GPON through the use of overlapping radio cells. The application of centralized control in the optical line terminal and time division ...
Source: Journal of Optical Networking - February 23, 2009 Category: Physics Authors: Milos MilosavljevicYuval ShachafPandelis KourtessisJohn M. Senior Source Type: journals

Indoor airport radio-over-fiber network traffic model and performance analysis using load-balancing techniques [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The development of airports such as the recently inaugurated Heathrow Terminal 5, as well as the increasing number of people using these facilities every day for business reasons or just for pleasure, reveals the importance of adequate and reliable communication facilities in this context. This ...
Source: Journal of Optical Networking - February 21, 2009 Category: Physics Authors: Ángela A. de Grado ViveroOmar Y. AlaniJ. M. Elmirghani Source Type: journals

SuperMAN: Optical-wireless integration of RPR and WiMAXEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This paper introduces a novel fiber-wireless (FiWi) network architecture, called SuperMAN, and investigates the optical-wireless integration of a resilient packet ring (RPR) and WiMAX networks. We propose a novel hierarchical integrated scheduling algorithm that significantly improves the ...
Source: Journal of Optical Networking - February 21, 2009 Category: Physics Authors: Navid GhazisaidiFrancesco PaolucciMartin Maier Source Type: journals

Low-cost optical line terminal for a WDM-PON compatible with radio-over-fiber systemsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We demonstrate what we believe to be a novel WDM-PON architecture compatible with radio-over-fiber systems to provide both wired and wireless services. A frequency-quadrupled modulation scheme is employed to generate optical millimeter waves and realize centralized lightwaves in radio-over-fiber ...
Source: Journal of Optical Networking - February 10, 2009 Category: Physics Authors: Z. DongJ. LuZ. CaoL. Chen Source Type: journals

Wireless high-definition services over optical fiber networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We experimentally demonstrate several key technologies to further explore the converged benefits of optical and wireless systems to offer wireless high-definition (HD) services for both fixed and mobile users. These technologies include spectrum-efficient multiband generation and ...
Source: Journal of Optical Networking - January 29, 2009 Category: Physics Authors: Zhensheng JiaJianjun YuYu-Ting HsuehHung-Chang ChienArshad ChowdhuryGee-Kung Chang Source Type: journals

Double-spread radio-over-fiber system for next-generation wireless technologiesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The main challenge for present and future personal communication systems and personal communication networks stems from the exponentially growing user demand. Radio over fiber (RoF), the combination of optical and wireless technologies, has many advantages and a wide range of applications. The 3G ...
Source: Journal of Optical Networking - January 27, 2009 Category: Physics Authors: Arokiaswami Alphones Source Type: journals

Scalable optical switches for computing applications [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A scalable photonic interconnection network architecture is proposed whereby a Clos network is populated with broadcast-and-select stages. This enables the efficient exploitation of an emerging class of photonic integrated switch fabric. A low distortion space switch technology based on recently ...
Source: Journal of Optical Networking - January 27, 2009 Category: Physics Authors: Ian WhiteAw Eng TinKevin WilliamsHaibo WangAdrian WonforRichard Penty Source Type: journals

Mitigation strategy for transmission impairments in millimeter-wave radio-over-fiber networks [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Hybrid fiber-wireless networks for fixed wireless access operating in the millimeter-wave (mm-wave) frequency region have been actively pursued to provide ultrahigh bandwidth for untethered connectivity. Moving the radio operating frequency into the mm-wave region overcomes the spectral congestion ...
Source: Journal of Optical Networking - January 24, 2009 Category: Physics Authors: Christina LimAmpalavanapillai NirmalathasMasuduzzaman BakaulKa-Lun LeeDalma NovakRod Waterhouse Source Type: journals

Demonstration and optimization of an optical impulse radio ultrawideband distribution system using a gain-switched laser transmitterEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
What we believe to be a novel system for the distribution of high-definition video streams in a residential environment is demonstrated. The system utilizes impulse radio ultrawideband (IR-UWB) technology integrated with a fiber-based distribution network. The pulses are directly generated in the ...
Source: Journal of Optical Networking - January 22, 2009 Category: Physics Authors: Haymen ShamsAleksandra Kaszubowska-AnandarajahPhilip PerryLiam Barry Source Type: journals

Generation of optical millimeter-wave signals and vector formats using an integrated optical I/Q modulator [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study discusses two key technologies used in radio-over-fiber (RoF) systems, namely, the generation and transmission of millimeter-wave signals and optical modulation schemes capable of carrying vector signal formats and utilizing the continuous performance improvements offered by digital ...
Source: Journal of Optical Networking - January 22, 2009 Category: Physics Authors: Jyehong ChenChun-Ting LinPo Tsung ShihWen-Jr JiangSheng-Peng DaiYu-Min LinPeng-Chun PengSien Chi Source Type: journals

Radio-over-fiber transport for the support of wireless broadband services [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Some of the work carried out within the EU Network of Excellence ISIS on radio-over-fiber systems for the support of current and emerging wireless networks is reviewed. Direct laser modulation and externally modulated links have been investigated, and demonstrations of single-mode fiber and ...
Source: Journal of Optical Networking - January 17, 2009 Category: Physics Authors: Nathan J. GomesMaria MorantArokiaswami AlphonesBéatrice CabonJohn E. MitchellChristophe LethienMark CsörnyeiAndreas StöhrStavros Iezekiel Source Type: journals

Novel MAC protocol with idle detection for all-optical WDM ring networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A novel media access control (MAC) protocol named carrier sense multiple access with idle detection (CSMA/ID) is proposed to handle variable-length packets over an all-optical ring network. To evaluate optimal utilization of channel bandwidth, we study packet scheduling based on three transmitting ...
Source: Journal of Optical Networking - January 10, 2009 Category: Physics Authors: Wen-Ping ChenJih-Hsin HoWen-Shyang HwangCe-Kuen Shieh Source Type: journals

Shared-path protection with extra traffic in ASON-GMPLS ring networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We implement shared-path protection (SPP) with extra traffic in automatically switched optical network (ASON) rings provided with a generalized multiprotocol label switching (GMPLS) control plane. The protection time provided by the SPP scheme is analyzed as a function of the switching time of the ...
Source: Journal of Optical Networking - January 10, 2009 Category: Physics Authors: Luis VelascoSalvatore SpadaroJaume ComellasGabriel Junyent Source Type: journals

Application of an electroabsorption modulator in radio-over-fiber networks [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A 60? GHz radio-over-fiber (RoF) network using an electroabsorption modulator (EAM) is presented. A photonic frequency upconversion technique that utilizes the wavelength conversion process in the EAM is adopted for seamless integration of optical and wireless networks. The transmission ...
Source: Journal of Optical Networking - January 10, 2009 Category: Physics Authors: Chul Soo ParkYongxin GuoLing Chuen OngYong Kee YeoYixin WangMing Tuo ZhouHiroshi Harada Source Type: journals

Forward error correction in 10 Gbits/s Ethernet passive optical networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The use of forward error correction (FEC) codes in future deployments of access networks is quite foreseeable and requires an analysis of the proper code for this purpose. Therefore, an overview of the most important classes of FEC codes is presented, assessing the most suitable to be used in ...
Source: Journal of Optical Networking - December 20, 2008 Category: Physics Authors: Sílvia PatoHenrique SilvaPaulo Monteiro Source Type: journals

Performance evaluation of IEEE 802.11e medium access control in fiber-fed networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An evaluation of the performance of the IEEE 802.11e medium access control (MAC) for quality-of-service (QoS) support in 802.11 networks has been carried out in a fiber-fed wireless local area network (WLAN) scenario. The effect of the additional optical path delay on the effectiveness of the new ...
Source: Journal of Optical Networking - December 20, 2008 Category: Physics Authors: Majlinda MjekuAnthony NkansahNathan J. Gomes Source Type: journals

Broadband radio-over-fiber-based wireless access with 10 Gbits/s data ratesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Radio over fiber is a very attractive technology for delivering microwave and millimeter-wave signals containing broadband multimedia services. The generation of an optical double-sideband with suppressed carrier signal is a straightforward method because only one microwave modulator driven at half ...
Source: Journal of Optical Networking - December 18, 2008 Category: Physics Authors: Ignacio González InsuaDirk PlettemeierChristian G. Schäffer Source Type: journals

Optical-router-based dynamically reconfigurable photonic access networkEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An optical-router-based dynamically reconfigurable photonic access network is described. The network is a dense wavelength division multiplex overlay over legacy time division multiplexed passive optical networks (PONs), each operating in its native format. A single such fiber plant deployment can ...
Source: Journal of Optical Networking - December 18, 2008 Category: Physics Authors: Rajeev RoyGert ManhoudtWim van Etten Source Type: journals

Coarse optical circuit switching by default, rerouting over circuits for adaptationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
As Internet traffic continues to grow unabated at an exponential rate, it is unclear whether the existing packet-routing network architecture based on electronic routers will continue to scale at the necessary pace. On the other hand, optical fiber and switching elements have demonstrated an ...
Source: Journal of Optical Networking - December 17, 2008 Category: Physics Authors: Jerry Chou Bill Lin Source Type: journals

GMPLS-based packet contention resolution in connection-oriented OPS networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Approaches for contention resolution among packets in the optical domain have been traditionally devised for distributed operation locally within individual nodes, exploiting both the time and wavelength dimensions. In this work, we focus on packet contention prevention in an optical ...
Source: Journal of Optical Networking - December 3, 2008 Category: Physics Authors: N. AndriolliP. CastoldiH. HaraiJ. BuronS. Ruepp Source Type: journals

Enhanced failure-specific p-cycle network dual-failure restorability design and optimizationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Following the approach of a prior integer linear programming network design model to provide specified dual-failure restorability levels, we develop a new model that allows for an enhanced dual-failure restorability approach. We observe that some dual-failure scenarios affecting a single p-cycle ...
Source: Journal of Optical Networking - December 3, 2008 Category: Physics Authors: Jude Akpuh John Doucette Source Type: journals

Code sequence analysis in asynchronous coherent time-spreading optical code-division multiple accessEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An analysis of the code parameters that are important to asynchronous coherent time-spreading optical code-division multiple-access (OCDMA) systems employing Gold codes is presented. Multiple-access interference (MAI) and beat noise (BN) are analyzed according to the aperiodic cross-correlation ...
Source: Journal of Optical Networking - December 3, 2008 Category: Physics Authors: Jianhua JiMing XuShuwen Yang Source Type: journals

Emission and discard priority scheme for optical burst switched networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A key issue in optical burst switched (OBS) networks is resolving burst contention in an efficient and cost-effective manner. Although deflection routing has been identified as a cost-effective solution, its viability has been questioned. We propose an emission and discard priority (EDP) scheme to ...
Source: Journal of Optical Networking - November 15, 2008 Category: Physics Authors: Pascal AcquaahJia-Ming LiuH. Anthony Chan Source Type: journals

Half-duplex 12-channel dense WDM 2.6-GHz-band radio-over-fiber system employing a 1.5 GHz bandwidth reflective semiconductor optical amplifierEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We demonstrate a half-duplex system for 2.6-GHz-band radio-over-fiber (RoF) signals. Twelve 156-Mbits/s differential phase-shift keying channels operating at the same frequency band as the WiMax standard are successfully distributed after being transmitted through 26.5 km of standard single-mode ...
Source: Journal of Optical Networking - November 15, 2008 Category: Physics Authors: J. J. Vegas OlmosToshiaki KuriKen-ichi Kitayama Source Type: journals

Traffic management framework for optical routers with small buffersEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We present a thorough investigation into the performance of the integrated router interconnected spectrally (IRIS), an all-optical router, using network and ...
Source: Journal of Optical Networking - October 29, 2008 Category: Physics Authors: Arvinder Pal WanderAnujan VarmaMarina Thottan Source Type: journals

Task scheduling considering fault probability for distributed computing applications over an optical networkEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The optical network integrated computing environment has been thought of as a promising technology to support large-scale data-intensive distributed computing applications. For such an environment involving so many heterogeneous resources, such as high-performance processors and optical links, ...
Source: Journal of Optical Networking - October 29, 2008 Category: Physics Authors: Wei GuoZheng LiangZhenyu SunShilin XiaoYaohui JinWeiqiang SunWeisheng Hu Source Type: journals

Scaling all-optical packet routers: how much buffering is required? [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Taking all-optical packet-switched cross-connect architectures that are highly scalable as a starting point, we investigate how much buffering is required in optical packet routers. In particular, we investigate how the buffering depth scales with the number of ports of the router and how the ...
Source: Journal of Optical Networking - October 21, 2008 Category: Physics Authors: H. J. DorrenN. CalabrettaO. Raz Source Type: journals

Optical interconnection of core and metro networks [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A network concept is introduced that exploits transparent optical grooming of traffic between an access network and a metro core ring network. This network is enabled by an optical router that allows bufferless aggregation of metro network traffic into higher-capacity data streams for core network ...
Source: Journal of Optical Networking - October 21, 2008 Category: Physics Authors: A. D. EllisD. CotterS. IbrahimR. WeerasuriyaC. W. ChowJ. LeutholdW. FreudeS. SygletosP. VorreauR. BonkD. HillerkussI. TomkosA. TzanakakiC. KouloumentasD. J. RichardsonP. PetropoulosF. ParmigianiG. ZarrisD. Simeonidou Source Type: journals

Application of 2W-PON to the backhaul of a wireless networkEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A passive optical network (PON) is a good candidate for the infrastructure of next-generation IP-based wireless backhaul because it saves the network both fiber length and transceivers. For the fast processing of time-sensitive packets such as control and voice-over-IP data, two upstream ...
Source: Journal of Optical Networking - October 4, 2008 Category: Physics Authors: Junhoi ChungJaeuk ParkByungchul ChoiYoungil ParkJaehoon YooByoung-Whi Kim Source Type: journals

Multigranular optical router for future networks [Invited]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The future optical network needs to offer dynamic bandwidth allocation with the ability to adapt to application bandwidth requirements by providing transport granularity at the appropriate bit rate. A key element in such a network is a high-speed multigranular optical router that is able to support ...
Source: Journal of Optical Networking - October 4, 2008 Category: Physics Authors: R. NejabatiG. ZervasG. ZarrisY. QinE. EscalonaM. O'MahonyD. Simeonidou Source Type: journals

Maximum throughput traffic grooming in optical networksEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In synchronous optical networks (SONETs) and WDM networks, low-rate traffic demands are usually multiplexed to share a high-speed wavelength channel. The multiplexing-demultiplexing is known as traffic grooming and is performed by SONET add-drop multiplexers (SADM). The grooming factor, denoted by ...
Source: Journal of Optical Networking - September 30, 2008 Category: Physics Authors: Yong Wang Qian-Ping Gu Source Type: journals

Optical packet routers: how they can efficiently and cost-effectively scale to petabits per secondEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Today's data-centric networks are becoming progressively dynamic with respect to the transported traffic volume, to the spatial and temporal variations of traffic patterns, and to the subsequent interconnection request patterns. Optical packet routers (OPRs) aim to provide a viable answer to ...
Source: Journal of Optical Networking - September 27, 2008 Category: Physics Authors: A. StavdasC. (T) PolitiT. OrphanoudakisA. Drakos Source Type: journals