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Distributed Coordinator Election Scheme for QoS Support and Seamless Connectivity in WPANs

Distributed Coordinator Election Scheme for QoS Support and Seamless Connectivity in WPANs
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摘要 Wireless personal area networks （WPANs） are formed in a relatively small area, and coordinator that serves as a central control device plays an important role in the operation and organization of a piconet. Typical applications of WPANs include home automation systems, security systems and health monitoring systems. In these types of systems, guaranteeing seamless connectivity is very important, and communications cannot take place when the coordinator malfunctions. Thus, in the case of a breakdown, it is necessary to elect a new coordinator as soon as possible. For this reason, a distributed coordinator election scheme （DCES） is proposed that considers not only QoS support but also network connectivity in an effort to avoid possible network partition. Simulation results show that the proposed scheme can elect a new coordinator while maintaining QoS and guaranteeing connectivity for a limited period. Wireless personal area networks （WPANs） are formed in a relatively small area, and coordinator that serves as a central control device plays an important role in the operation and organization of a piconet. Typical applications of WPANs include home automation systems, security systems and health monitoring systems. In these types of systems, guaranteeing seamless connectivity is very important, and communications cannot take place when the coordinator malfunctions. Thus, in the case of a breakdown, it is necessary to elect a new coordinator as soon as possible. For this reason, a distributed coordinator election scheme （DCES） is proposed that considers not only QoS support but also network connectivity in an effort to avoid possible network partition. Simulation results show that the proposed scheme can elect a new coordinator while maintaining QoS and guaranteeing connectivity for a limited period.
作者 Soon-Gyu Jeong Sang-Jo Yoo
机构地区 Graduate School of Information Technology & Telecommunications
出处 《Journal of Computer Science & Technology》 SCIE EI CSCD 2009年第6期1138-1148,共11页 计算机科学技术学报（英文版）
基金 supported by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the IITA (Institute for Information Technology Advancement)" under Grant No.IITA-2009-C1090-0902-0019
关键词 QoS seamless connectivity leader election piconet coordinator （PNC） wireless personal area network （WPAN） QoS, seamless connectivity, leader election, piconet coordinator （PNC）, wireless personal area network （WPAN）
分类号 TN925.93 [电子电信—通信与信息系统]
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Journal of Computer Science & Technology
2009年 第6期

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