Adaptive error control scheme for wireless sensor networks based on hops and communication distance
Chang Jin-yi · Control theory & applications · 2011
The reliability guarantee of data delivery over wireless sensor networks(WSNs) is a big challenge due to the unreliable and dynamic characteristics of WSNs,limited bandwidth and battery power of sensor nodes.This paper proposes an adaptive error control mechanism for WSNs,called AEC--Hops/RSSI,in order to improve the communication performance of WSNs.First,based on the mathematical analysis model,the characteristics of the hops of link layer frames with the energy consumption is researched deeply.Second,the feature of communication distance between sending node of link layer frames and next-hop receiving node with the energy efficiency is discussed,which is between forward error correction(FEC),automatic repeat request(ARQ) and chase combing hybrid ARQ(HARQ).Finally,according to the above analytical results,an adaptive error control mechanism(AEC--Hops/RSSI) is proposed,which can improve the performance of WSNs communication by scheduling the optimal error control mechanisms.The mathematical analysis shows that the AEC--Hops/RSSI mechanism achieves better performance compared with FEC,ARQ and HARQ,in terms of communication reliability and energy efficiency in WSNs.