Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Performance Analysis of MBMS and Wi-Fi Priority Policy in Heterogeneous Networks having a dispersed Single-cell MBMS

분산된 단일 셀 MBMS을 지원하는 이종 네트워크 환경에서 MBMS와 와이파이 사용자 우선 정책에 대한 성능 분석

  • Jeong, Un Ho (Dept. of Electronic Engineering, College of IT, Kangwon National University) ;
  • Lee, Jung Moon (Dept. of Electronic Engineering, College of IT, Kangwon National University) ;
  • Kim, Gi Taek (Dept. of Electronic Engineering, College of IT, Kangwon National University) ;
  • Nam, Boo Hee (Dept. of Electronic Engineering, College of IT, Kangwon National University) ;
  • Kim, Dong Hoi (Dept. of Electronic Engineering, College of IT, Kangwon National University)
  • 정운호 (강원대학교 IT대학 전기전자공학부 전자통신공학과) ;
  • 이정문 (강원대학교 IT대학 전기전자공학부 전자통신공학과) ;
  • 김기택 (강원대학교 IT대학 전기전자공학부 전자통신공학과) ;
  • 남부희 (강원대학교 IT대학 전기전자공학부 전자통신공학과) ;
  • 김동회 (강원대학교 IT대학 전기전자공학부 전자통신공학과)
  • Received : 2012.12.20
  • Accepted : 2013.02.15
  • Published : 2013.03.30
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Abstract

With the rising popularity of smart-phones, the supply of Internet protocol television is largely increased and it causes the wireless communication network load to be increased. To overcome such an overloading problem, 3GPP is now working on the standardization of MBMS since LTE Release 6 specification. MBMS has good performance in bandwidth efficiency by sharing the same bandwidth with the mulitple MBMS users having the same content. According to the proposed algorithm, in heterogeneous networks having a dispersed Single-cell MBMS where 3GPP network and Wi-Fi network are mixed, if the number of MBMS users, who are belonging to cells supporting a dispersed Single-cell MBMS, is more than a specified threshold, the MBMS priority policy is operated. Otherwise, the Wi-Fi priority policy is executed. As the simulation results show both the increase of total available bandwidth ratio and the decrease of network usage cost, it is confirmed that the proposed scheme allows the network efficiency to be maximized.

스마트폰의 급격한 보급으로 인해 모바일 인터넷 방송 (Internet Protocol Television) 사용은 큰 폭으로 증가하여 이미 많은 네트워크 부하를 일으켰다고 보고되고 있습니다. 이러한 과부하문제를 해결하기 위한 방안으로 3GPP (3rd Generation Partnership Project)에서는 LTE (Long Term Evolution) Release 6 규격이후로 MBMS (Multimedia Broadcast and Multicast Service)에 대한 표준화 작업을 진행되고 있다. MBMS는 동일한 콘텐츠를 가지는 다수의 MBMS 사용자들과 동일한 대역폭을 공유하게 함으로써 대역폭 효율 측면에서 우수성을 가지고 있다. 본 논문에서는 단일 셀 MBMS을 지원하는 3GPP와 와이파이 (Wi-Fi) 2개의 네트워크가 혼재되어 있는 이종 네트워크 환경에서 단일 셀 MBMS가 지원되는 셀들에 속한 동일한 콘텐츠를 가지는 MBMS 사용자의 수가 많다면 MBMS 최우선 정책을 적용하고 그렇지 않은 경우에는 기존의 와이파이 우선 정책을 적용하는 알고리즘에 대한 성능 분석에 대한 연구를 수행하였다. 시뮬레이션을 통하여 제안하는 알고리즘은 전체 가용 대역폭의 증가와 네트워크 사용 비용의 감소를 보여주고 있음을 확인하였다.

Keywords

References

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