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LSMRP: Link stability based multicast routing protocol in MANETs

机译：LSMRP：MANET中基于链路稳定性的多播路由协议

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In MANETs, there are many critical issues such as energy consumption, QoS, exposure to attacks, link stability etc. that need to be addressed for improved communication. ‘Link Stability’ is important because radio links are likely to be unreliable due to node mobility. This instability leads to increased rerouting which further escalates routing overhead. One way of reducing routing overhead is use of multicasting instead of unicast routing. Multicast Routing Protocol transmits data simultaneously to a group of destination nodes to achieve better resource utilization. In this paper, we present a multicasting routing protocol that uses received signal strength as a metric to estimate link stability. Estimated SINR (Signal to Interference plus Noise Ratio) at every node in respect of different senders is used to determine a reliable path that is likely to mitigate link failures and reduce end-to-end delay. For any two nodes, we aim at finding best link with high probability of longer lifetime. We have simulated our experiment on Exata/Cyber Simulator and compared the result of the proposed routing protocol with ODMRP (On-Demand Multicast Routing Protocol) based on minimum hop count. Analysis of our simulation results show improvement of various routing performance metrics such as PDR, Routing Overhead and packet drop ratio.
机译：在MANET中，需要解决许多关键问题，例如能耗，QoS，遭受攻击，链路稳定性等，以改善通信。 “链接稳定性”非常重要，因为由于节点的移动性，无线电链接可能不可靠。这种不稳定性导致重新路由增加，从而进一步增加了路由开销。减少路由开销的一种方法是使用多播而不是单播路由。组播路由协议同时将数据传输到一组目标节点，以实现更好的资源利用。在本文中，我们提出了一种多播路由协议，该协议使用接收到的信号强度作为衡量链路稳定性的指标。相对于不同发送者，每个节点上的估计SINR（信号干扰加噪声比）用于确定一条可靠的路径，该路径可能会减轻链路故障并减少端到端延迟。对于任何两个节点，我们的目标是找到具有较长使用寿命的高概率的最佳链接。我们已经在Exata / Cyber​​ Simulator上模拟了我们的实验，并基于最小跳数将提议的路由协议的结果与ODMRP（按需组播路由协议）进行了比较。对我们的模拟结果的分析表明，各种路由性能指标（例如PDR，路由开销和数据包丢失率）均得到了改善。

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