標題: Parallel QoS Scheduling for WDM Optical Interconnection System Using a New Ranked Hopfield Neural Network
作者: Tien, Po-Lung
Ke, Bo-Yu
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Hopfield neural networks;optical interconnect;parallel scheduling;quality of service (QoS)
公開日期: 15-八月-2011
摘要: In this paper, we propose a parallel QoS scheduler for a WDM optical interconnection system (WOPIS), using a new ranked Hopfield neural-network (RHNN). The WOPIS contains a set of Clos-like optical switches and a handful of output FDL-based optical buffers. The RHNN scheduler determines an optimal set of neurons (I/O paths) to be enabled, achieving maximal system throughput and priority differentiation subject to the switch- and buffer-contention-free constraints. Structured with ranked neurons, the RHNN allows higher-rank neurons (higher-priority and/or lower-delay paths) to disable lower-rank neurons that have been enabled during previous iterations. Ranking the neurons unfortunately gives rise to a convergence problem. We present two theorems that give the sufficient conditions for the RHNN scheduler to converge to the optimal solution. We demonstrate via simulation results that, with the computation time within one system slot time, the RHNN scheduler achieves near 100% throughput and multi-level prioritized scheduling.
URI: http://dx.doi.org/10.1109/JLT.2011.2159578
http://hdl.handle.net/11536/14804
ISSN: 0733-8724
DOI: 10.1109/JLT.2011.2159578
期刊: JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume: 29
Issue: 16
起始頁: 2436
結束頁: 2446
顯示於類別:期刊論文


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  1. 000296702400005.pdf