A Cognitive Radio based Multi-hop Relay Cellular Network

  • Hassan, Md. Imrul (Dept. of Electronic & Radio Eng., Kyung Hee University) ;
  • Song, Ju-Bin (Dept. of Electronic & Radio Eng., Kyung Hee University) ;
  • Kim, Young-Il (Mobile Telecommunication Research Division, ETRI)
  • Published : 2007.07.11

Abstract

In this paper, we investigate the throughput capacity of a multi-hop relay network with cognitive radio (CR) enabled relay stations (RS). We suggested a TDMA/FDMA based frame structure where RSs dynamically select unused channels to communicate with the base station (BS) using CR techniques to analyze the throughput capacity. We developed the throughput capacity model for the proposed system based on utilization factor. The analytical results based on those equations show significant improvement in throughput capacity for CR enabled multi-hop relay system.

Keywords