전자공학회논문지 (Journal of the Institute of Electronics and Information Engineers)

  • 제50권6호
  • /
  • Pages.9-21
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  • 2013
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  • 2287-5026(pISSN)
  • /
  • 2288-159X(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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계층적 LTE 네트워크에서 최적의 트래킹 로드밸런스 기법의 성능분석

Performance Analysis of Optimal Tracking Load Balance Scheme in Hierarchical LTE Networks

  • 전민수 (성균관대학교 컴퓨터공학과) ;
  • 정종필 (성균관대학교 정보통신대학)
  • Jeon, Minsu (Department of Computer Engineering, Sungkyunkwan University) ;
  • Jeong, Jongpil (College of Information and Communication Engineering, Sungkyunkwan University)
  • 투고 : 2012.12.20
  • 발행 : 2013.06.25
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초록

트래킹(Tracking)은 셀의 관점에서 트래킹 영역내의 UE(User Equipment)를 탐색하는 과정이다. 이 논문에서는, 매크로셀-마이크로셀 계층적 LTE 네트워크에 관한 PMMT(Pure Macro-Micro Tracking)과 IMMT(Integrated Macro-Micro Tracking)로 불리는 두가지 트래킹 기법의 성능을 평가한다. 이런 네트워크에서 UE들은 매크로셀과 겹쳐 있는 마이크로셀 모두에서 신호를 받을 수 있다. PMMT 기법에서 UE는 매크로셀-계층 또는 겹쳐있는 마이크로셀-계층에서 각각 호출될 수 있다. IMMT 기법에서 UE는 매크로셀-계층과 겹쳐있는 마이크로셀-계층의 조합으로 호출된다. 매크로셀-계층과 마이크로셀-계층 사이에 최적의 로드밸런스가 평가되었고, 분석 모델은 두 기법을 평가하기 위해 개발되었다.

Tracking is a process which explores user equipment (UE) in the area of tracking in terms of cells. In this paper, two tracking schemes based on macrocell-microcell tiers in hierarchical LTE networks, PMMT and IMMT, are evaluated. In this network, UE can receive a signal from macrocells and overlapping microcells, and can be called from each macrocell or microcell-tier in the PMMT. Also, the UE can be called from the combined macrocell-tier and microcell-tier in the IMMT. Finally, we analyze the optimization of load balance between marcocell-tier and microcell-tier, and an analytical model is developed to evaluate those two arrangements.

키워드

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