Abstract: In order to solve the energy control problem of link layer in a non-uniform deploy network environment, the dissertation proposed a clustering routing algorithm based on link power control (CLPC). Based on optimal connectivity power clustering and using dual-channel mechanism with anti-control interference strategy, CLPC solves the problem of collision retransmission and channel access fairness in link layer from network layer, so as to improve the whole net- work performance. Collision and competition intension among nodes can be reduced by optimal connectivity power mechanism, and collision probability during data transmission can be decreased by dual-channel mechanism so as to lead the improvement of channel utilization. Moreover, anti control interference strategy, by anti-controlling nodes which arc high transmit power, can guarantee low transmit power nodes to ensure they can share channel fairly. The simulation re- sups show that CI_PC algorithm has a further improvement for energy efficiency and system throughput.

Key words: Wireless sensor networks,Power control,Cross-layer design,Clustering routing