Energy-saving broadcasting algorithms based on network coding in multi-sink wireless sensor networks
Guosheng Jiang · Journal of Guangxi University · 2011
Multiple sinks may query different information from wireless sensor networks by broadcasting simultaneously,and then redundancy energy consumption becomes a key and challenge task.In view of the feature of network coding,an energy-saving broadcasting algorithm based on network coding(ESBNC) is proposed in this paper,which make only partial sensors implement coding-forward operations.It presents that sensor node select coding or not depends on local neighbor information,and node receives multiple coded packets can recover original information by decoding.Simulation results show that the presented algorithm can effectively reduce the amount of forward nodes and coding nodes by 8%~40% with different scale and density of networks.Therefore,the whole energy consumption and compute overheads are reduced greatly and the performance of wireless sensor networks is improved.