Bilayer Beams and Relay Sharing based OFDMA Cellular Architecture
Yanxiong Pan, Hui Xian Han, Sihai Zhang, Wuyang Zhou · International Journal of Computer Network and Information Security · 2011
Abstract—Over the past decade, researchers have been putting a lot of energy on co-channel interference suppres-sion in the forthcoming fourth generation (4G) wireless networks. Existing approaches to interference suppression are mainly based on signal processing, cooperative commu-nication or coordination techniques. Though good perfor-mance has been attained already, a more complex receiver is needed, and there is still room for improvement through other ways. Considering spatial frequency reuse, which provides an easier way to cope with the co-channel interference, this paper proposed a bilayer beams and relay sharing based (BBRS) OFDMA cellular architecture and corresponding frequency planning scheme. The main features of the novel architecture are as follows. Firstly, the base station (BS) uses