Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article An Energy-Efficient MAC Protocol in Wireless Sensor Networks: A Game Theoretic Approach | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 926420 10 pages doi 2010 926420 Research Article An Energy-Efficient MAC Protocol in Wireless Sensor Networks A Game Theoretic Approach S. Mehta and K. S. Kwak UWB Wireless Communications Research Center Inha University Incheon 402-751 Republic of Korea Correspondence should be addressed to K. S. Kwak kskwak@ Received 30 October 2009 Revised 7 April 2010 Accepted 31 May 2010 Academic Editor Xinbing Wang Copyright 2010 S. Mehta and K. S. Kwak. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Game Theory provides a mathematical tool for the analysis of interactions between the agents with conflicting interests hence it is well suitable tool to model some problems in communication systems especially to wireless sensor networks WSNs where the prime goal is to minimize energy consumption than high throughput and low delay. In this paper we use the concept of incomplete cooperative game theory to model an energy efficient MAC protocol for WSNs. This allows us to introduce improved backoff algorithm for energy efficient MAC protocol in WSNs. Finally our research results show that the improved back off algorithm can improve the overall performance as well as achieve all the goals simultaneously for MAC protocol in WSNs. 1. Introduction Communication in wireless sensor networks is divided into several layers. Medium Access Control MAC is one of those layers which enables the successful operation of the network. MAC protocol tries to avoid collisions by not allowing two interfering nodes to transmit at the same time. The main design goal of a typical MAC protocols is to provide high throughput and QoS. On the other hand wireless sensor MAC protocol gives higher priority to minimize energy
