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Energy-Efficient Routing Protocol based on Interference Awareness for Transmission of Delay-Sensitive Data in Multi-Hop RF Energy Harvesting Networks

다중 홉 RF 에너지 하베스팅 네트워크에서 지연에 민감한 데이터 전송을 위한 간섭 인지 기반 에너지 효율적인 라우팅 프로토콜

  • 김현태 (군산대학교 컴퓨터정보통신공학부) ;
  • 나인호 (군산대학교 컴퓨터정보통신공학부)
  • Received : 2018.02.28
  • Accepted : 2018.03.13
  • Published : 2018.03.28

Abstract

With innovative advances in wireless communication technology, many researches for extending network lifetime in maximum by using energy harvesting have been actively performed on the area of network resource optimization, QoS-guaranteed transmission, energy-intelligent routing and etc. As known well, it is very hard to guarantee end-to-end network delay due to uncertainty of the amount of harvested energy in multi-hop RF(radio frequency) energy harvesting wireless networks. To minimize end-to-end delay in multi-hop RF energy harvesting networks, this paper proposes an energy efficient routing metric based on interference aware and protocol which takes account of various delays caused by co-channel interference, energy harvesting time and queuing in a relay node. The proposed method maximizes end-to-end throughput by performing avoidance of packet congestion causing load unbalance, reduction of waiting time due to exhaustion of energy and restraint of delay time from co-channel interference. Finally simulation results using ns-3 simulator show that the proposed method outperforms existing methods in respect of throughput, end-to-end delay and energy consumption.

Keywords

Energy Harvesting;Co-channel Interference;Queuing Delay;Routing Metric;Multihop Relaying

Acknowledgement

Supported by : 한국연구재단

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