Delay Aware and Load Balanced Multi-Path Routing in Wireless Sensor Networks

In wireless sensor networks, a multi-path routing based data gathering algorithm should consider the number of paths and the way to select these paths. The data transfer through these multiple paths should be performed in a load balanced way. There should be some detection technique for routing failures. In this paper, we propose to design a load balanced delay aware multi-path routing. It contains three phases: the multi-path construction phase, Data aggregation phase and the Data transmission phase. The sink calculates the inter-arrival delay and new data sending rate for all the paths and this information is sent as a feedback to the source such that the paths with minimum delay are chosen and the packets are distributed through these paths according to their new data sending rates. By our simulation results we show that our objectives are achieved through this method and so the multi-path routing has been enhanced.