计算机科学 ›› 2015, Vol. 42 ›› Issue (5): 132-135.doi: 10.11896/j.issn.1002-137X.2015.05.026
沙海进,白光伟,沈 航,张 芃
SHA Hai-jin, BAI Guang-wei, SHEN Hang and ZHANG Peng
摘要： 多信道无线网状网的性能在很大程度上依赖于信道分配和路由选择。现有的多信道无线网状网路由大多没有考虑信道之间的干扰问题,从而导致通信性能下降。针对这一问题,提出一种基于探测的多信道无线网状网机会路由(POR)算法。首先,根据干扰能量,选出最佳通信信道集来降低信道间的传输干扰。在此基础上,采用探测方式计算路径期望传输时延,确定候选链路集并运用机会路由机制进行数据传输以最小化端到端的传输时延。实验结果表明,POR可以显著地降低平均端到端时延,提高数据包投递率,为数据传输提供实时性和可靠性保证。
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