• Title/Summary/Keyword: High layer OoS

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Downlink Radio Resource Allocation Algorithm for Supporting Heterogeneous Traffic Data in OFDM/SDMA-based Cellular System (OFDM/SDMA 기반 셀룰러 시스템에서 다양한 트래픽 데이터를 지원하기 위한 하향링크 자원할당 알고리즘)

  • Heo Joo;Park Sung-Ho;Chang Kyung-Hi;Lee Hee-Soo;Ahn Jae-Young
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.3A
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    • pp.254-266
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    • 2006
  • Recently, researches about downlink resource allocation algorithms applying SDMA to enhance the system throughput and cell coverage have begun. Most OFDM/SDMA based resource allocation algorithms have some limitations such that those only concentrate on maximizing the system throughput or can be applied in single cell environment. In this paper, we propose an OFDM/SDMA based downlink resource allocation algorithm which considers high layer QoS parameters suitable for the required data traffic and it also minimizes the system throughput loss and considers inter-cell interference from adjacent cells. so it can be adopted in multi-cell environment. We manifest the performance of the proposed algorithm in Ped A and SCME MIMO Channel Model.