NDLI: Iterative decoding of serially concatenated space-time codes in WCDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Bon-Jin Ku Jong-Moon Chung Daesik Hong Changeon Kang
Copyright Year	2002
Description	Author affiliation: ACSEL & OCLNB Labs., Oklahoma State Univ., Stillwater, OK, USA (Bon-Jin Ku; Jong-Moon Chung)
Abstract	In this paper, concatenated space-time codes applying iterative decoding topologies are investigated in wideband code division multiple access (WCDMA) communication systems. The coding operations are based on the concatenation of a convolutional encoder, an interleaver, and a space-time code employing multiple-transmitter/multiple-receiver diversity. As the decoding algorithm, an iterative (turbo) process is used, where a priori probability is exchanged between the symbol-by-symbol space-time decoder and the bit-by-bit convolutional decoder. Through the iterative decoding process and the optimum parameter selection operations a considerable improvement in the error rate performance is obtained. The simulation results for the multi-user forward link WCDMA system show that in a flat Rayleigh fading channel environment the serially concatenated interleaved space-time coding systems perform significant levels of error correction, and additionally, for the applied system configurations, it was observed that the nonrecursive space-time code outperforms the recursive spacetime code.
Sponsorship	IEEE
Starting Page	911
Ending Page	916
File Size	445748
Page Count	6
File Format	PDF
ISBN	0780376250
DOI	10.1109/MILCOM.2002.1179596
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iterative decoding Concatenated codes Space time codes Multiaccess communication Convolutional codes Topology Wideband Iterative algorithms Error analysis Fading
Content Type	Text
Resource Type	Article

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