Viterbi Demodulation in Two-Level FH-CDMA Wireless Systems Based on Reed-Solomon Codes

Author

Tsao, Lun-Cheng ; Chen, Hou-Shou ; Yang, Guu-Chang ; Chang, Cheng-Yuan ; Kwong, Wing C.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan

fYear

2012

fDate

6-9 May 2012

Firstpage

1

Lastpage

5

Abstract

Coded modulation with Reed-Solomon (RS) codes has recently been proposed to use atop of frequency-hopping code-division multiple access (FH-CDMA) in order to increase data transfer rate. In this paper, a new method on implementing the modulation and demodulation processes of the RS codes in RS/FH-CDMA is proposed. With the use of our specially "pruned" trellis and the Viterbi algorithm, both processes are simplified and so are their computational complexities. The performance and computational complexities of this RS/FH-CDMA system are analyzed and verified with computer simulation.

Keywords

Reed-Solomon codes; code division multiple access; computational complexity; demodulation; Reed-Solomon codes; Viterbi algorithm; Viterbi demodulation; computational complexities; data transfer rate; frequency-hopping code-division multiple access; two-level FH-CDMA wireless systems; Complexity theory; Demodulation; Frequency modulation; Measurement; Receivers; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4673-0989-9

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2012.6240031

Filename

6240031