Distributed algorithms for cooperative routing and power allocation in wireless sensor networks

Abstract

Based on the optimal power allocation in cooperative transmission, two distributed algorithms, distributed separate route and power allocation algorithm （D-SRPA） and distributed joint route and power allocation algorithm （D-JRPA）, were proposed. The two algorithms combining the PHY （physical layer） and MAC （media-access control） protocol can get the similar performance as the corresponding centralized algorithms. Simulation results show that com- pared with D-JRPA, D-SRPA can save the total transmission power more efficiently.

Keywords

• cooperative routing
• distributed algorithm
• power allocation
• wireless sensor networks