Unsymmetrical Spatial Coding Algorithms for Overlay Cognitive Radio Network

• Published in: 5th IET International Conference on Wireless, Mobile and Multimedia Networks (ICWMMN 2013) p. 2.01
• Main Authors: Lan, Pengpeng, Yang, Xiao, Wang, Dong, Moon Ho Lee
• Format: Conference Proceeding
• Language: English
• Published: Stevenage, UK IET 2013; The Institution of Engineering & Technology
• Subjects: Codes; Other topics in statistics; Radio links and equipment; PBS; joint decoding; overlay cognitive radio network; unsymmetrical spatial coding algorithms; BER simulation; precoding; cognitive base station; cognitive radio; CBS; CR network; primary user network; primary base station; error statistics
• ISBN: 9781849197267; 1849197261
• DOI: 10.1049/cp.2013.2374

In this paper, the overlay cognitive radio (CR) network is considered. We proposed unsymmetrical spatial coding algorithms to cannel the interference between primary users (PUs) network and CR network. In the uplink of the overlay CR network, PUs and CUs are of one antenna, and need not to precode their transmitting signals, and primary base station (PBS) and cognitive base station (CBS) with two antennas can separate the received hybrid signals by using the proposed decoding algorithm. In the downlink, PBS and CBS need to joint precoding, and PUs and CUs need to joint decoding. The BER simulation results of the uplink and downlink are provided to verify the efficiency of the proposed spatial coding algorithms.