Integrated Topology Control and Routing in Wireless Sensor Network Design for Prolonged Network Lifetime
Seminar by Halit Uster Associate Professor Department of Industrial and Systems Engineering Texas A&M University (TAMU)
A Wireless Sensor Networks (WSN) can be deployed in inhospitable environments, difficult-to-reach terrains, and wild habitats such as war zones, oceans, the poles, deserts, and rain forests to monitor and observe natural, environmental, and climate- related phenomena including temperature, pressure, humidity, vibration, light, chemical and biological agents, etc. The most distinguishing characteristic of a WSN is the fact that its sensors have finite and non-renewable energy resources. In this talk, we consider integrated topology control and routing issues in data gathering WSNs and address the problem of prolonging network lifetime until next sensor deployment. We suggest a policy to be employed in each period of a deployment cycle and computationally examine its efficiency in prolonging network lifetime against two other commonly employed approaches. We present mathematical models and a general efficient solution procedurethat is applicable to all the three policies. We determine that the proposed policy has attractive properties and exhibits very good performance in extending network lifetime. (Research supported by National Science Foundation under grant CMMI-0428831). (Joint work with Hui Lin)
