The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Energy-Efficient Packet Aggregation Scheme for VoIP Service in Wireless Multi-Hop Network

무선 멀티 홉 네트워크에서 VoIP 서비스를 위한 효율적인 패킷 결합 기법

  • 정지영 (중앙대학교 전자전기공학과 통신정보시스템 연구실) ;
  • 강현식 (중앙대학교 전자전기공학과 통신정보시스템 연구실) ;
  • 이정륜 (중앙대학교 전자전기공학부)
  • Received : 2012.02.21
  • Accepted : 2012.07.17
  • Published : 2012.08.31
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Abstract

This paper proposes packet aggregation scheme for considering energy consumption of mobile devices on guaranteeing quality of voice. To our purpose, we analyze VoIP service on wireless multi-hop channel in terms of delay, packet loss and energy consumption when packet aggregation scheme is applied to VoIP service. Moreover, we induce a cost function with considering of tradeoff relation between quality of voice and energy consumption.

본 논문에서는 무선 멀티 홉 네트워크에서 VoIP 서비스를 만족하면서, 각 노드들의 에너지 소모를 줄일 수 있는 패킷 결합 개수($c_{PA}$)를 정하는 비용함수를 도출하였다. 이를 위해 무선 멀티 홉 환경에서 패킷 결합 개수에 따른 종단 간 지연과 패킷 손실률이 R-factor에 미치는 영향과 네트워크상에서 송수신 하는 모든 단말기의 에너지 소비에 미치는 영향을 분석하고, 무선 멀티 홉 환경에서 VoIP 패킷들을 효율적으로 전송하기 위한 방안을 제시하기 위해 앞에서 유도한 R-factor값(R)과 에너지 소모(E)간의 트레이드오프 관계를 비용 함수로 표현하였다.

Keywords

References

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