Real-Time Communication of Periodic Messages on Wireless Sensor and Actor Networks

무선 센서-엑터 네트워크에서 주기적 메시지의 실시간 전송

  • Ngo, Dao Quan (Department of Computer Engineering and Information Technology, University of Ulsan) ;
  • Lee, Sang-Jin (Department of Computer Engineering and Information Technology, University of Ulsan) ;
  • Kim, Myung-Kyun (Department of Computer Engineering and Information Technology, University of Ulsan)
  • ;
  • 이상진 (울산대학교 공과대학 컴퓨터정보통신공학부) ;
  • 김명균 (울산대학교 공과대학 컴퓨터정보통신공학부)
  • Published : 2008.06.30

Abstract

Wireless network technologies are becoming more widely used in industrial environment. The industrial communication system requires a real-time delivery of messages. The sensors periodically senses the physical environment and wants to deliver the data in real-time to the sink. This paper proposes a real-time protocol for periodic messages on wireless sensor and actor networks to be used in industrial communications. The proposed protocol delivers the data message using the shortest path from the source and the nearest actor. The protocol considers the energy consumption by reducing the number of broadcast messages during flooding. We have evaluated the performance of the proposed protocol using QualNet simulator. The simulation results show that the data messages have been delivered in real-time and the number of broadcast messages is reduced from 90% to 35% compared the existing protocols.

Keywords