Nonuniform distribution problem in topology control for wireless sensor networks

• Published in: IET Conference on Wireless, Mobile and Sensor Networks 2007 (CCWMSN07) pp. 301 - 305
• Main Authors: Pei Huang, Xi Yang, Yongdong Tan
• Format: Conference Proceeding
• Language: English
• Published: Stevenage IET 2007
• Subjects: Communication network design, planning and routing; Control applications in radio and radar; Other topics in statistics; Radio links and equipment; topology control algorithm; energy consumption minimization; wireless sensor networks; telecommunication control; wireless sensor network; energy conservation; telecommunication network topology; statistical distributions; nonuniform distribution problem; energy consumption
• ISBN: 0863418368; 9780863418365
• DOI: 10.1049/cp:20070143

Minimizing energy consumption is an important challenge in wireless sensor networks. A series of topology control algorithms conserve energy by turning off redundant nodes while preserving the fidelity of network applications. Their communication connectivity, however, is proved under the prerequisite that nodes are uniformly distributed. Due to the cost restriction, mobility and destructions from atrocious environment and malicious entities, the uniformity can hardly be guaranteed in real deployments. We show that nonuniformity may yield bad performance or even complete failures. Among these protocols, PEAS is chosen to be improved for its inherent superiority over others in wireless sensor networks. Simulation studies show that the network lifetime is extended to another nodes' average lifespan by adopting this fix.