Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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A Resource Management and Allocation Scheme for Multiple Multimedia Service in Heterogeneous Networks

이종 무선망에서 다중 멀티미디어 서비스 지원을 위한 자원 운용 및 할당 알고리즘

  • Lee, Jong-Chan (Dept. of Computer Information Engineering, Kunsan National University) ;
  • Lee, Moon-Ho (Dept. of Multimedia Science, Chungwoon University)
  • 이종찬 (국립군산대학교 컴퓨터정보공학과) ;
  • 이문호 (청운대학교 멀티미디어학과)
  • Received : 2011.09.09
  • Accepted : 2011.10.15
  • Published : 2012.01.31
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Abstract

This paper proposes a resource management and allocation algorithm to guarantee QoS continuity of realtime multimedia services and to maximize the resource utilization in heterogeneous wireless networks simultaneously. This scheme reserves the appropriate resources to be used by real-time multimedia services and allocates those resources left unused due to decreased transmission rate of realtime services to non-realtime services. Those resources can be preempted by the need of realtime services later. Performances are analyzed by simulation.

본 연구에서는 이종 무선융합망에서 실시간 서비스 품질의 지속성을 보장하면서도 자원의 이용도를 극대화하기 위한 자원운영 방안인 PRA(Priority Resource Allocation)를 제안한다. PRA에서는 예약된 자원을 사용하여 실시간 서비스 데이터를 우선적으로 전송하되 그 전송률이 감소하면 비실시간 서비스가 여분의 대역폭을 일시적으로 이용한다. 실시간 세션의 가변 전송률에 근거한 통계적 다중화 기법을 통하여 PRA 방식이 실시간 서비스의 품질을 만족시키면서도 동시에 접속 가능한 가입자 수를 최대화할 수 있음을 시뮬레이션에 의해 확인한다.

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References

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