一种信任和能量意识的WSN补救路由算法

在ARRIVE 算法的基础上, 提出一种信任和能量意识的补救路由算法(TeaRR). 在选择下一跳节点时, TeaRR 综合考虑候选节点的信任值和剩余能量, 选择信任值和剩余能量最优的节点转发数据. 为了防御链路不稳定和On-Off 攻击造成的丢包问题, TeaRR 采用发送节点主动推荐和邻居节点被动参与相结合的补救策略, 快速恢复对可能丢失包的转发. 实验结果表明, TeaRR 更加适用于延时敏感的应用, 可在接收率与能耗间平衡.

A trust and energy aware remedy routing algorithm for wireless sensor networks

The trust and energy aware remedy routing(TeaRR) algorithm is proposed to enhance the original ARRIVE algorithm. Considering nodes’ trust and remaining energy synthetically, the TeaRR algorithm selects the nodes with the optimal trust value and remaining energy as next-hop nodes. To overcome the packet lost problem caused by the variability of link quality and the On-Off attacks, TeaRR adopts a rescue scheme, which combines sending nodes’ active recommendation with neighbor nodes’ passive participation, to quickly resume forwarding the possible lost packets. Experimental results show that the TeaRR algorithm is more suitable for delay-sensitive applications, and can provide a trade-off between the packet delivery ratio and the energy cost.