Quadro-Star: a high performance optical WDM star network
Quadro-Star: a high performance optical WDM star network
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DOI：
10.1109/26.310618
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发表时间：
1994-08
期刊：
影响因子：
--
通讯作者：
I. Chlamtac;A. Fumagalli
中科院分区：
文献类型：
--
作者：
I. Chlamtac;A. Fumagalli
本文提出了一种控制 WDM 无源光学星的原始方法，称为延迟接收操作的排队到达（Quadro）。在 WDM 星中，接收器冲突的根本问题会导致严重的性能下降。在当前的解决方案中，通过调度传输来防止冲突或者通过重传来解决冲突。这两种方法都会浪费带宽并涉及电子处理和缓冲。所提出的方法在概念上的不同之处在于在每个包含延迟线的接收器处引入本地冲突解决机制。该解决方案使光星形网络向全光实现又近了一步。此外，它还允许几乎完全利用信道，而迄今为止只能通过 TDM 控制才能实现这一点。然而，与 TDM 相反，所提出的解决方案在异构流量条件和节点数量增加的情况下不会遭受性能下降。因此，它的独特之处在于提供了全光解决方案的潜力，同时提供高吞吐量、低延迟、小缓冲区要求以及所有流量条件下的鲁棒性。 >
This paper proposes an original approach to controlling WDM Passive optical stars, termed queuing arrivals for delayed reception operation (Quadro). In WDM stars the fundamental problem of receiver conflicts leads to severe performance degradation. In current solutions conflicts are prevented by scheduling transmissions or resolved by retransmissions. Both approaches waste bandwidth and involve electronic processing and buffering. The proposed approach is conceptually different in introducing a local conflict resolution mechanism at each receiver incorporating delay lines. This solution brings optical star networks a step closer to an all-optical realization. In addition, it allows an almost total utilization of the channels, as obtainable until now only by TDM control. Contrary to TDM, however, the proposed solution does not suffer performance degradation under heterogeneous traffic conditions and increasing number of nodes. It is thus unique in offering the potential of an all-optical solution providing at the same time high throughput, low delay, small buffer requirements, and robustness under all traffic conditions. >