Capacity Analysis of VoIP over LTE Network

LTE 무선 네트워크에서 Voice over IP 용량 분석

  • 반태원 (경상대학교 정보통신공학과, 해양산업연구소) ;
  • 정방철 (경상대학교 정보통신공학과, 해양산업연구소)
  • Received : 2012.09.19
  • Accepted : 2012.10.16
  • Published : 2012.11.30


The 4th generation mobile communication system, LTE, does not support an additional core network to provide voice service, and it is merged into a packet network based on all IP. Although Voice service over LTE can be supported by VoIP, it will be provided by the existing 3G networks because of the discontinuity of LTE coverage. However, it is inevitable to adopt VoIP over LTE to provide high quality voice service. In this paper, we investigate the capacity of VoIP over LTE. Our results indicate that spectral efficiency can be significantly improved as channel bandwidth increases in terms of VoLTE capacity. In addition, we can achieve higher VoLTE capacity without decreasing control channel capacity.


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