无线Ad hoc网络中的协同路由

近几年,协同分集技术得到了广泛的关注。在无线Ad hoc网络中采用协同技术可以为网络带来分集增益,减轻信道衰落的影响。研究了无线Ad hoc网络在网络层采用协同技术的方法和形式——协同路由算法,通过节点在传输数据时主动寻找协同节点为其转发数据,可以有效地提高网络性能。对现有的几种协同路由算法和协同节点选择机制进行了详细的研究,分析了其各自技术优势及存在的问题。最后探讨了协同路由有待解决的问题及未来的研究发展方向。

Cooperative Routing Protocol for Wireless Ad hoc Network

Recently,cooperative diversity technology has received much attention.The employment of cooperative technology in wireless Ad hoc network could bring about diversity gain and mitigate channel fading.This paper describes the cooperative technology at network layer in wireless Ad hoc network,and studies the cooperative routing which could efficiently improve the performance of the network in the way that the nodes initiatively select cooperative nodes to forward the data.Several cooperative routing algorithms are discussed,and their technical advances and problems analyzed in detail.Finally,the to-be-solved problems for cooperative routing algorithm in future are probed.