Multi-protocol label switching（MPLS） has the advantage of high efficiency in the second layer, which improves the performance of data packets routing. In this paper, a new structure to implement optical MPLS is prop...Multi-protocol label switching（MPLS） has the advantage of high efficiency in the second layer, which improves the performance of data packets routing. In this paper, a new structure to implement optical MPLS is proposed. We construct a code family for spectral-amplitude coding（SAC） labels in the optical MPLS networks. SAC labels are suitable for optical packet switching because they can be constructed and recognized quickly at each router. We use the label stacking to provide hierarchical routing to avoid swapping labels at each forwarding node and reduce system complexity. However, the phase-induced intensity noise（PIIN） appears due to the incoherent property of the light source when the stacked labels set makes the correlation decoding with the local node label,which degrades system performance.展开更多
在无线传感器网络中,为了提高能量的利用率和增强数据包转发的可靠性,设计了PFAG(Packet ForwardingAlgorithm Based on Auction Game)算法。该算法将数据包转发过程看作一种多阶段拍卖博弈过程,其中源节点作为买方,邻居节点作为卖方。...在无线传感器网络中,为了提高能量的利用率和增强数据包转发的可靠性,设计了PFAG(Packet ForwardingAlgorithm Based on Auction Game)算法。该算法将数据包转发过程看作一种多阶段拍卖博弈过程,其中源节点作为买方,邻居节点作为卖方。邻居节点根据拍卖博弈模型中的标价函数给出相应标价,源节点通过选择最佳的转发节点以使自己的收益最大化。当数据包转发成功后,源节点退出此次博弈,转发节点作为买方启动新一轮拍卖博弈,依次迭代,直到数据包被成功发送到目的节点。经过这样一个多阶段的拍卖博弈过程,源节点最终可找出一条能耗低、稳定且可靠的包转发路径。仿真结果表明,PFAG算法可有效的降低和平衡网络能耗,具备传输可靠性高和适应网络规模变化性强的特点。展开更多
文摘Multi-protocol label switching（MPLS） has the advantage of high efficiency in the second layer, which improves the performance of data packets routing. In this paper, a new structure to implement optical MPLS is proposed. We construct a code family for spectral-amplitude coding（SAC） labels in the optical MPLS networks. SAC labels are suitable for optical packet switching because they can be constructed and recognized quickly at each router. We use the label stacking to provide hierarchical routing to avoid swapping labels at each forwarding node and reduce system complexity. However, the phase-induced intensity noise（PIIN） appears due to the incoherent property of the light source when the stacked labels set makes the correlation decoding with the local node label,which degrades system performance.
文摘在无线传感器网络中,为了提高能量的利用率和增强数据包转发的可靠性,设计了PFAG(Packet ForwardingAlgorithm Based on Auction Game)算法。该算法将数据包转发过程看作一种多阶段拍卖博弈过程,其中源节点作为买方,邻居节点作为卖方。邻居节点根据拍卖博弈模型中的标价函数给出相应标价,源节点通过选择最佳的转发节点以使自己的收益最大化。当数据包转发成功后,源节点退出此次博弈,转发节点作为买方启动新一轮拍卖博弈,依次迭代,直到数据包被成功发送到目的节点。经过这样一个多阶段的拍卖博弈过程,源节点最终可找出一条能耗低、稳定且可靠的包转发路径。仿真结果表明,PFAG算法可有效的降低和平衡网络能耗,具备传输可靠性高和适应网络规模变化性强的特点。
