Pipelined transmission scheduling in all-optical TDM/WDM rings

Xijun Zhang, C. Qiao
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引用次数: 17

Abstract

Two properties of optical transmissions, namely, unidirectional propagation and predictable propagation delay, make it possible to pipeline packet transmissions in all-optical networks. In this paper, we study the problem of scheduling all-to-all personalized communication (AAPC) in unidirectional TDM/WDM rings with pipelined transmissions, which can achieve a much higher bandwidth utilization than non-pipelined transmissions. For a given number of wavelengths, K, and number of transmitter-receiver pairs per node, T, the theoretical lower bound (TLB) on the schedule lengths is derived and scheduling methods which can achieve near optimal results are proposed for three different cases, namely, T=K, 2/spl les/T
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全光TDM/WDM环中的流水线传输调度
光传输的两个特性,即单向传播和可预测的传播延迟,使全光网络中的分组传输成为可能。本文研究了单向TDM/WDM环中具有流水线传输的全对全个性化通信(AAPC)调度问题,AAPC可以实现比非流水线传输更高的带宽利用率。对于给定的波长数K和每个节点的收发对数T,推导了调度长度的理论下界(TLB),并针对T=K、2/spl les/T三种不同情况提出了接近最优结果的调度方法
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