Reliable and Energy Saving Multipath Routing in Multisink Wireless Sensor Networks
In wireless sensor networks (WSN), the single path routing may result in path failure during data transmission and re-establishment of alternate path might take more duration. Also, using architecture with single sink node can cause issues of energy dissipation and poor channel condition. In order to overcome these issues, in this paper, we propose a reliable and energy saving multipath routing in multisink wireless sensor networks. The proposed architecture contains multiple sink nodes and neighbors of sink nodes are considered to be representative nodes which are in one hop distance. Initially, each node constructs neighbor and representative node table based on the parameters such as residual energy, transmission success rate and hop count of the nodes. When the node wants to transmit the data from source to destination, it establishes the multiple optimal paths for data transmission based on link weight estimate based on the parameters such as energy level and transmission success rate stored in neighbor table. By simulation results, we show that the proposed approach minimizes the energy consumption and link failures.
