Congestion control for efficient transmission in ZigBee networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Information quality model and optimization for 802.15.4-based wireless sensor networks
Journal of Network and Computer Applications
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Congestion avoid in wireless sensor networks is a critical issue, it will not only affect transmission reliability, and will waste valuable energy resources. In order to reduce the wireless sensor network routing instability, we proposed a novel altering routing congestion control protocol for wireless sensor networks (CAAR). In this paper, We develop: 1) Based on cognition detection technology to detect the potential congestion timely and effective; 2) Once congestion happens inevitably, CAAR is presented to reallocate traffic with altering route protocol to mitigate congestion, avoid conflict, enhances data transmission reliability of CH; 3) Congestion data local preservation strategies, it effectively avoid data lost during the congestion period and guarantee the reliability of data transmission 4) The altering routing protocol also provides a network load balancing, effective prolongs the life cycle of the clusters, postpones network system lifetime.