The AWG∥PSC network: a performance enhanced single-hop WDM network with heterogeneous protection

Fan, Chao; Maier, Martin; Reisslein, Martin

doi:10.1109/infcom.2003.1209248

Cited by 8 publications

(5 citation statements)

References 56 publications

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“…Another interesting direction for future work is to consider multicasting over a hybrid network formed by operating an AWG in parallel with a PSC. (A preliminary study of such an for unicast traffic is provided in [42].) The network offers interesting tradeoffs for multicasting in that a multicast destined to receivers at one AWG output port could be conducted over the AWG, while a multicast destined to receivers at several AWG output ports may be more efficiently conducted over the PSC.…”

Section: Discussionmentioning

confidence: 99%

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The arrayed-waveguide grating-based single-hop WDM network: an architecture for efficient multicasting

Maier

Scheutzow

Reisslein

2003

IEEE J. Select. Areas Commun.

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Research on multicasting in single-hop wavelengthdivision-multiplexing (WDM) networks has so far focused on networks based on the passive star coupler (PSC), a broadcast device. It has been shown that the multicasting performance is improved by partitioning multicast transmissions into multiple multicast copies. However, the channel bottleneck of the PSC, which does not allow for spatial wavelength reuse, restricts the multicast performance. In this paper, we investigate multicasting in a single-hop WDM network that is based on an arrayed-waveguide grating (AWG), a wavelength routing device that allows for spatial wavelength reuse. In our network, optical multicasting is enabled by wavelength-insensitive splitters that are attached to the AWG output ports. Multicasts are partitioned among the splitters and each multicast copy is routed to a different splitter by sending it on a different wavelength. We demonstrate that the spatial wavelength reuse in our network significantly improves the throughput-delay performance for multicast traffic. By means of analysis and simulations, we also demonstrate that for a typical mix of unicast and multicast traffic the throughput-delay performance is dramatically increased by transmitting multicast packets concurrently with control information in the reservation medium access control protocol of our AWG-based network. Index Terms-Arrayed-waveguide grating (AWG), multicasting, partitioning, reservation medium access control (MAC), single-hop wavelength-division-multiplexing (WDM) network, spatial wavelength reuse. I. INTRODUCTION M ETROPOLITAN area (metro) wavelength-divisionmultiplexing (WDM) networks connect local access networks to the WDM backbone network. With the increasing speeds in access networks due to new technologies, such as Gigabit Ethernet, xDSL, and cable modems, and the deployment of very high-speed backbone networks, metro networks are emerging as a bottleneck in the Internet. This bottleneck-commonly referred to as metro gap-calls for the development of novel network architectures and protocols for metro WDM Manuscript

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Section: Discussionmentioning

confidence: 99%

“…The third schedulability is as given by (7). The fourth schedulability condition is replaced by (42) and (43) We let denote the probability that the scheduling pattern ( , , , , , )…”

Section: Appendixmentioning

confidence: 99%

The arrayed-waveguide grating-based single-hop WDM network: an architecture for efficient multicasting

Maier

Scheutzow

Reisslein

2003

IEEE J. Select. Areas Commun.

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“…Wavelength division multiplexing ͑WDM͒ is a well-known and widely applied technique in long-haul telecommunication networks [1][2][3] and local area computer networks, [4][5][6] which offers increased bandwidth through a single optical fiber. However, the advantages of WDM are not extensively investigated for board-to-board or even chip-to-chip interconnects.…”

Section: Introductionmentioning

confidence: 99%

Wavelength division multiplexing based optical backplane with arrayed waveguide grating passive router

et al. 2008

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A wavelength division multiplexing ͑WDM͒-based optical backplane architecture is introduced. It is a tunable transmitter fixed receiver ͑TT-FR͒ architecture incorporating an N ϫ N arrayed waveguide grating ͑AWG͒ element for passive data routing between the nodes, which in conjunction with star couplers, offers both unicast and multicast capabilities. The data and control plane of the network are implemented on a high-speed field programmable gate array ͑FPGA͒, and a four-node demonstrator is built up. Three different types of AWG routing elements implemented in different technologies are employed, and bit error rate ͑BER͒ versus incident power on the receiver measurements are presented for a data rate of 10 Gbps per link. A total switching time as low as 500 ns is achieved, permitting packet switching operation with more than 95% efficiency when the packet length is greater than 10 kbytes.

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“…Since a star network suffers from the central node failure problem, the overlaid star topology [4][5][6] has been considered to provide robustness and reliability. Path reliability has been studied, e.g., [7], and traffic protection problem studied in [8].…”

Section: Introductionmentioning

confidence: 99%

Contention Resolution by Retransmission in Single-hop OPS Metro Networks

Rahbar

Yang

2007

JNW

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We consider a single-hop slotted all-Optical Packet-Switched (OPS) metro network where contention is the major problem. Since contention resolution hardware such as optical buffers and wavelength converters are expensive, we do not use any of these contention resolution hardware inside a core switch. Instead, we consider the retransmission in the optical domain which appears to be the cheapest solution. We study the prioritized retransmission schemes where dropped traffic has a priority when retransmitted from edge switches. Our study shows that the number of retransmissions can be significantly reduced. We present the analysis in a singlefiber network where additional wavelength channels are used to carry the same traffic. In addition to verifying our analysis, our simulation results demonstrate the capability and the advantage of PR over the traditional RR (Random Retransmission) as well as the advantage of using multiple wavelengths over using multiple fibers.

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The AWG∥PSC network: a performance enhanced single-hop WDM network with heterogeneous protection

Cited by 8 publications

References 56 publications

The arrayed-waveguide grating-based single-hop WDM network: an architecture for efficient multicasting

The arrayed-waveguide grating-based single-hop WDM network: an architecture for efficient multicasting

Wavelength division multiplexing based optical backplane with arrayed waveguide grating passive router

Contention Resolution by Retransmission in Single-hop OPS Metro Networks

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