A reduced complexity highly power/bandwidth efficient coded FQPSK system with iterative decoding

Author

Simon, Marvin K. ; Divsalar, Dariush

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

10

fYear

2001

fDate

2001

Firstpage

2963

Abstract

Based on a representation of FQPSK as a trellis-coded modulation, this paper investigates the potential improvement in power efficiency obtained from the application of simple (small number of states) outer codes to form a concatenated coding arrangement with iterative decoding. Several possible configurations for the concatenation are suggested and specific numerical results are presented for one of these in order to demonstrate the large coding gains that are achievable even when using a reduced complexity FQPSK receiver. The end result of these investigations is a system which has application in scenarios requiring a high degree of both power and bandwidth efficiency

Keywords

computational complexity; concatenated codes; iterative decoding; quadrature phase shift keying; trellis coded modulation; FQPSK; Feher-patented QPSK; bandwidth efficiency; coding gains; concatenated coding; iterative decoding; numerical results; outer codes; power efficiency; reduced complexity receiver; trellis-coded modulation; Bandwidth; Baseband; Bit error rate; Convolution; Convolutional codes; Iterative decoding; Modulation coding; Pulse modulation; Signal mapping; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.937216

Filename

937216