Spreading Codes Based Multicast Feedback Scheme for Reliable Multicast Services

신뢰성 있는 멀티캐스트 서비스를 위한 스프레딩 코드 기반 피드백 기법

  • Received : 2015.02.16
  • Accepted : 2015.03.17
  • Published : 2015.04.30


In order to support reliable medium access control (MAC) layer multicast services in Broadband Wireless Access (BWA) networks, we here propose spreading codes (Cumulative ACK (CA) code and ARQ Feedback Request (AFR) code) based reliable multicast feedback scheme. The status indications based on the automatic repeat request (ARQ) mechanism are needed in some multicast services. In accordance with various wireless channel environments, we demonstrate the performance excellency of our proposed scheme with respect to required uplink resources compared with the original feedback scheme based on unicast ARQ feedback messages. In addition, we analyze packet error rate (PER) against the various wireless channel environments.


Spreading Code;Reliable Multicast Service;Feedback Scheme;automatic repeat request (ARQ)


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