Acta Metallurgica Sinica(English letters) ›› 2007, Vol. 14 ›› Issue (1): 49-57.doi: 1005-8885 (2007) 01-0049-09

• Wireless • Previous Articles     Next Articles

Clustering and multi-hop routing with power control in wireless sensor networks

GUO Shu-jie, ZHENG Jie, QU Yu-gui, ZHAO Bao-hua, PAN Quan-ke   

  1. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China
  • Received:2006-11-02 Revised:1900-01-01 Online:2007-03-30
  • Contact: ZHAO Bao-hua

Abstract:

Clustering routing protocols excel in several aspects of wireless sensor networks (WSNs). This article proposes a clustering and multihop routing protocol (CMRP). In CMRP, a node independently makes its decision to compete for becoming a cluster head or join a cluster, according to its residual energy and average broadcast power of all its neighbors. To minimize the power consumption of the cluster head, CMRP sends the data in a power-aware multihop manner to the base station (BS) through a quasi-fixed route (QFR). In addition, CMRP presents a transmission power control algorithm with dynamic intercluster neighbor position estimation (DCNPE) to save energy. Simulation results show that the performance of CMRP is better than the hybrid, energy-efficient, distributed clustering approach (HEED). In the best case, CMRP increases the sensor network lifetime by 150.2%.

Key words:

WSNs;QFR;DCNPE

CLC Number: