Title :
BER Performance for MC-CDMA Systems in the Presence of HPA Non-Linearity
Author :
Zid, Souad ; Bouallegue, Ridha
Author_Institution :
SYP´´COM, 6´´Tel Lab., Nat. Eng. Sch. of Tunis, Tunis, Tunisia
Abstract :
Multi Carrier Code Division Multiple Access (MC-CDMA) is a promising multicarrier multiple access technology for present and future cellular communications. It has some advantages over the traditional multiple access technology like TDMA, FDMA and DSCDMA, etc. MC-CDMA was first proposed in 1993. Since its commencement, it has garnered international attention with hundreds of research articles written about its promise. In this paper, an AWGN channel is considered to evaluate the performance of MC-CDMA employing Walsh-Hadamard codes, considered to evaluate the performance of MC-CDMA, employing amplifier HPA in terms of Bit Error Rate (BER) for downlink. We investigate the impact of HPA non-linearities (caused by a Traveling Wave Tube Amplifier (TWTA)) on the MC-CDMA systems for different PSK/QAM modulation scheme.
Keywords :
AWGN channels; cellular radio; code division multiple access; error statistics; AWGN channel; BER; DSCDMA; FDMA; HPA non-linearity; MC-CDMA systems; PSK/QAM modulation scheme; TDMA; Walsh-Hadamard codes; bit error rate; cellular communications; multi carrier code division multiple access; multicarrier multiple access technology; traveling wave tube amplifier; Bit error rate; High power amplifiers; Interference; Laboratories; Multiaccess communication; Multicarrier code division multiple access; OFDM; Phase shift keying; Quadrature amplitude modulation; Radio transmitters; HPA; MC-CDMA; Non-linearity; SSPA; TWTA;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728566
