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A multiuser receiver for trellis-coded DS/CDMA systems in asynchronous channels
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- Authors
- Kwang Soon Kim, Iickho Song, Hong Gil Kim, Yun Hee Kim, Sun Yong Kim
- Issue Date
- 2000-05
- Citation
- IEEE Transactions on Vehicular Technology, v.49, no.3, pp.844-855
- ISSN
- 0018-9545
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- In this paper, we propose and analyze a multiuser receiver using a decorrelating filter and Viterbi decoders for trellis-coded direct-sequence code-division multiple-access (DS/CDMA) systems with biorthogonal signal constellation in asynchronous channels. The biorthogonality is implemented by user signature waveforms and the decorrelating filter. The performance of the proposed system is investigated with emphasis on the asymptotic cases: it is shown that the proposed system provides us with some coding gain and near-far resistance. It is confirmed that we can enhance the performance of the proposed system by using base-station antenna arrays. © 2000 IEEE.
- KSP Keywords
- Asynchronous channels, CDMA systems, Code division Multiple Access(CDMA), Coding Gain, Direct-sequence(DS), Direct-sequence code-division multiple-access(DS-CDMA), Trellis-Coded, antenna array, base station(BS), base station antenna, multiuser receiver