A Hop-by-hop Reliability Support Scheme for Wireless Sensor Networks

Haejun Lee, Yangwoo Ko, Dongman Lee
Fourth Annual IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOMW'06)  
The most significant obstacle to multi-hop communications in wireless sensor networks is high link error rate. Thus, an efficient hop-by-hop reliability support scheme is highly required. In this paper, we identify the characteristics of two typical communication patterns in wireless sensor networks and address the problems of previous end-to-end sequence based hop-byhop error recovery protocols, which cannot work properly with route change events and have a scalability problem with multiple
more » ... ders. We propose a new hopby-hop reliability support scheme named HRS. It uses hop-by-hop sequence numbers for hop-by-hop error recovery and operates in two separate modes depending on communication patterns. Through ns-2 based simulations, we show that both modes of HRS outperform the existing protocols in most metrics.
doi:10.1109/percomw.2006.9 dblp:conf/percom/LeeKL06 fatcat:usxe7a5jmrcypjltg5heqyeze4