Network Architectures for High-speed Photonic Networks

光网络一直被寄望于具有高数据传输率、低误码率和低时延的应用前景的高速网络。在这项研究中，我们提出了一种新的光网络体系结构，用于高速光网络，并由全光器件实现。首先，提出了无阻塞光交换的递归网络结构，证明了递归交换结构具有良好的网络性能和简单的自路由控制策略，并提出了无阻塞、无串扰的多级光交换结构。多级光交换结构是构建低信号损耗、低交叉的无阻塞光交换网络的一种很好的选择。具有光开关的Banyan网络由于其具有小深度和绝对信号损失均匀的良好特性而非常适合作为光交换结构。研究了光榕树网络的水平扩展和垂直堆叠相结合的堆叠式垂直堆积光榕树。我们已经证明，水平扩展和垂直堆叠的光榕树网络通常具有良好的无阻塞和无串扰特性。同时，对网络阻塞行为进行了分析，结果表明该方法是研究网络性能的一种有效方法，可以在硬件开销、网络深度和阻塞概率之间找到一种巧妙的折衷。最后，我们使用一种新的恢复策略来研究高生存性网络系统，该恢复策略获得了比主动恢复更高的恢复性能。我们发明了主动恢复策略来补偿交换节点故障和链路故障，以实现大规模网络的高生存性能。

Optical Networks have been expecting for promising high-speed network for applications require a high data transmission rate, low error rate and low delay. In this research, we proposed new optical network architecture for high-speed photonic network which is implemented by all photonic devise. First, we invented the recursive network architecture for non-blocking optical switches and showed that the recursive switch architecture had the good network performance as well as the simple control strategy of self-routing.We also invented the multi-stage optical switch architecture which has good properties of non-block and crosstalk free. The multi-stage optical switch architecture is a good choice for constructing non-blocking optical switch networks with low signal loss and crosstalk.Banyan networks with optical switches that are very attractive for serving as the optical switch architectures due to their nice properties of small depth and absolutely signal loss uniformity. We investigated the stacked vertically stacked optical banyan which is combining the horizontal expansion and vertical stacking of optical banyan networks. We have showed that the horizontally expanded and vertically stacked optical banyan networks usually have good properties of non-block and crosstalk free. Also, we study on the blocking behavior analysis and show that the proposed method is an effective approach to studying network performance and finding a graceful compromise among hardware cost, network depth, and blocking probability.Finally, we study the high survival network systems using a new restoration strategy which achieves the higher restoration performance than proactive restoration. We invented the active restoration strategy to compensate the switch node faults and link faults and achieve the high-survival performance for a large scale networks.