Synchronous trellis-coded CDMA: Analysis and system performance

Author

De Gaudenzi, Riccardo ; Giannetti, Filippo

Author_Institution

European Space Agency, Noordwijk, Netherlands

Volume

3

fYear

1993

fDate

23-26 May 1993

Firstpage

1444

Abstract

Synchronous trellis-coded code division multiple access (S-TC-CDMA) is introduced and analyzed. Compared with uncoded synchronous CDMA and conventional CDMA systems, S-TC-CDMA greatly improves the power and/or bandwidth efficiency using trellis coded M-ary phase shift keying (PSK) or quadrature amplitude modulation (QAM) modulation in conjunction with independent quasi-orthogonal I-Q direct sequence spectrum spreading (DS/SS). Approximate system bit error rate performances derived for an additive white Gaussian noise (AWGN) channel with cochannel interference are favorably compared to computer simulation results. Impairments due to satellite nonlinearities and multipath channel fading are discussed, and system peformance is reported

Keywords

Gaussian noise; cochannel interference; code division multiple access; error statistics; fading; multipath channels; phase shift keying; pseudonoise codes; quadrature amplitude modulation; satellite communication; spread spectrum communication; trellis codes; white noise; AWGN; M-ary phase shift keying; PSK; QAM; additive white Gaussian noise; bandwidth efficiency; cochannel interference; code division multiple access; multipath channel fading; quadrature amplitude modulation; satellite nonlinearities; sequence spectrum spreading; synchronous trellis coded CDMA; system bit error rate; AWGN; Amplitude modulation; Bandwidth; Code division multiplexing; Multiaccess communication; Performance analysis; Phase modulation; Phase shift keying; Quadrature amplitude modulation; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on

Conference_Location

Geneva

Print_ISBN

0-7803-0950-2

Type

conf

DOI

10.1109/ICC.1993.397526

Filename

397526