Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2006, Vol. 29 ›› Issue (2): 90-93.doi: 10.13190/jbupt.200602.90.liulf

• Reports • Previous Articles     Next Articles

A Congestion and Rate Control Scheme Based on Directed Diffusion in Wireless Sensor Networks

LIU Li-feng,ZOU Shi-hong, ZHANG Lei,CHENG Shi-duan   

  1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications
  • Online:2006-04-28 Published:2006-04-28

Abstract: A congestion and rate control scheme based on directed diffusion (CRDD) was presented, which comprises two mechanisms: congestion control when congestion occurs and rate adjustment when congestion disappears. The congestion control was achieved by congested node to feedback congestion notification massage hop-by-hop, while the rate adjustment was achieved by sink to refresh rate adjustment message periodically. CRDD can not only mitigate congestion rapidly, but also adjust sensor's rate to reduce network energy consumption.

Key words: wireless sensor network, directed diffusion, congestion control, rate control