Energy efficient mechanism using flexible medium access control protocol for hybrid wireless sensor networks
来源期刊：中南大学学报(英文版)2013年第8期
论文作者：SUN Ning JEONG Yoon-su LEE Sang-ho
文章页码：2165 - 2174
Key words：MAC protocol; energy conservation; flexibility; re-clustering; wireless sensor network
Abstract: Energy efficiency is a primary consideration in a wireless sensor network (WSN). This is also a major parameter when designing a medium access control (MAC) protocol for WSNs. Hierarchical clustering structure is regarded suitable for WSNs due to its good performance in energy conservation. In this work, an adequately flexible mechanism for clustering WSNs is designed, in which some creative or promotional metrics are utilized, such as cluster head selection algorithm, cluster optional reconstruction, interested data transmission, multiple path routing protocol. All these strategies were cooperated to maximize energy saving of whole system. An appropriate MAC protocol for this mechanism is proposed, by flexibly switching the status of diverse sensor nodes in different strategies. The simulation results show that the proposed MAC protocol is suitable for clustering WSNs and performs well in aspects of energy efficiency, flexibility and scalability.
SUN Ning1, JEONG Yoon-su2, LEE Sang-ho3
(1. Department of Computer Science, Chungbuk National University, Cheongju 361-763, Korea;
2. Department of Information Communication Engineering, Mokwon University, Daejeon 302-729, Korea;
3. Department of Computer Science, Chungbuk National University, Cheongju 361-763, Korea)
Abstract:Energy efficiency is a primary consideration in a wireless sensor network (WSN). This is also a major parameter when designing a medium access control (MAC) protocol for WSNs. Hierarchical clustering structure is regarded suitable for WSNs due to its good performance in energy conservation. In this work, an adequately flexible mechanism for clustering WSNs is designed, in which some creative or promotional metrics are utilized, such as cluster head selection algorithm, cluster optional reconstruction, interested data transmission, multiple path routing protocol. All these strategies were cooperated to maximize energy saving of whole system. An appropriate MAC protocol for this mechanism is proposed, by flexibly switching the status of diverse sensor nodes in different strategies. The simulation results show that the proposed MAC protocol is suitable for clustering WSNs and performs well in aspects of energy efficiency, flexibility and scalability.
Key words:MAC protocol; energy conservation; flexibility; re-clustering; wireless sensor network
