The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Analysis for Channel Change Minimization Scheme of Mobile IPTV Service in LTE-Advanced Systems

LTE-Advanced 시스템에서 모바일 IPTV 서비스 채널 변경 최소화 방법에 대한 분석

  • 이형우 (성균관대학교 정보통신대학원) ;
  • 정종필 (성균관대학교 정보통신대학)
  • Received : 2015.01.30
  • Accepted : 2015.04.10
  • Published : 2015.04.30
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Abstract

This paper presents our performance evaluation after the way of minimizing waiting times between channel switching for eMBMS(evolved Multimedia Broadcast/Multicast Services) technique in LTE-Advanced systems. Existing composition of MBMS using IGMP(Internet Group Management Protocol) transfers the data with Multicast from BM-SC(Broadcast Multicast Service Center) to eNB(evolevd Node B) and with Broadcast from eNB to UE(User Equipment). Therefore, in case of channel switching, IGMP Join report should be transferred to BM-SC and then wait user's contents to be retransferred from eNB. To achieve this, Subscriber Channel technique of priorities is used for minimizing waiting times between channel switching as UE broadcasts favorite channels in advance.

본 논문은 LTE-Advanced 환경에서의 eMBMS(evolved Multimedia Broadcast/Multicast Services) 기법을 위한 채널변경 대기시간 최소화 방안과 그 성능을 평가해 보고자 한다. 기존의 IGMP(Internet Group Management Protocol)을 이용한 MBMS 구성은 BM-SC(Broadcast Multicast Service Center)에서 eNB(evolevd Node B)까지는 멀티캐스트로, eNB에서 UE(User Equipment)까지는 브로드캐스트로 데이터를 전송한다. 때문에 채널 변경 시 IGMP Join Report를 BM-SC까지 전송해야 하며, 이후 eNB로부터 콘텐츠가 재송신되길 기다려야 한다. 이를 위해 가입자 채널 우선순위기법을 이용하여, UE가 즐겨 찾는 채널을 미리 브로드캐스트 함으로써 채널변경에 따른 대기시간을 최소화시킬 수 있다.

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