Title :
Multi-user detection schemes for co-channel heterogeneous radio signals based on ubiquitous antennas
Author :
Katayama, Rintaro ; Tsukamoto, Katsutoshi ; Komaki, Shozo
Author_Institution :
Dept. of Commun. Eng., Osaka Univ., Japan
Abstract :
This work proposes a new multi-user detection scheme based on ubiquitous antennas for co-channel heterogeneous radio signals, which are generated from different kinds of wireless services in the same frequency band. The ubiquitous antenna system is composed of multiple radio base stations (RBSs), the central control station (CCS) and radio-on-fiber (RoF) link. Computer simulation results show that the multi-user detector employing the minimum mean square error (MMSE) based combiner and the successive interference canceller (SIC) in combination can achieve the coexistence of coded orthogonal frequency division multiplexing (COFDM) and direct sequence spread spectrum (DSSS) signals.
Keywords :
OFDM modulation; antenna theory; cochannel interference; interference suppression; mean square error methods; mobile antennas; multiuser detection; optical fibre communication; radio receivers; spread spectrum communication; telecommunication computing; CCS; COFDM-DSSS signals coexistence; Computer simulation; MMSE; RBS; RoF link; SIC; central control station; co-channel heterogeneous radio signals; coded orthogonal frequency division multiplexing; direct sequence spread spectrum; frequency band; minimum mean square error based combiner; multi-user detection schemes; multiple radio base stations; radio-on-fiber link; successive interference canceller; ubiquitous antennas; wireless services; Base stations; Carbon capture and storage; Centralized control; Control systems; Frequency; Multiuser detection; RF signals; Radio control; Signal generators; Spread spectrum communication;
Conference_Titel :
Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8593-4
DOI :
10.1109/ISCIT.2004.1413808
