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Cluster-based AODV for ZigBee Wireless Measurement and Alarm Systems

ZigBee 무선계측/경보 시스템을 위한 클러스터 기반의 AODV

  • 박재원 ((주)ED 연구개발기획실) ;
  • 김홍록 (임베디드소프트웨어연구센터) ;
  • 이연정 (경북대학교 전자전기컴퓨터학부)
  • Published : 2007.09.01

Abstract

Establishing a fixed path for the message delivery through a wireless network is impossible due to the mobility. Among the number of routing protocols that have been proposed for wireless ad-hoc networks, the AODV(Ad-hoc On-demand Distance Vector) algorithm is suitable in the case of highly dynamic topology changes, along with ZigBee Routing(ZBR), with the exception of route maintenance. Accordingly, this paper introduces a routing scheme focusing on the energy efficiency and route discovery time for wireless alarm systems using IEEE 802.15.4-based ZigBee. Essentially, the proposed routing algorithm utilizes a cluster structure and applies ZBR within a cluster and DSR (Dynamic Source Routing) between clusters. The proposed algorithm does not require a routing table for the cluster heads, as the inter-cluster routing is performed using DSR. The performance of the proposed algorithm is evaluated and compared with ZBR using an NS2 simulator. The results confirm that the proposed Cluster-based AODV (CAODV) algorithm is more efficient than ZBR in terms of the route discovery time and energy consumption.

Keywords

References

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