Hybrid hard/soft interference cancellation based on list viterbi decoding

Wanlun Zhao; Renqiu Wang; Georgios B. Giannakis

Hybrid hard/soft interference cancellation based on list viterbi decoding

Wanlun Zhao, Renqiu Wang, Georgios B. Giannakis

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A convolutionally coded multiple-input multiple-output system equipped with CRC error detection is considered. For each convolutional code, the list Viterbi algorithm (LVA) is employed to find a list of promising codewords. CRC code is used not only to select a correct one from this list; but also to control the switching between hard-decision feedback and soft interference cancellation. Further, bit-level soft information is generated with low complexity, albeit approximately, using the same codeword list returned by LVA. Simulations confirm that this hybrid hard/soft interference cancellation scheme achieves enhanced error performance relative to existing hard-decision approaches at a comparable complexity.

Original language	English (US)
Title of host publication	Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers
Pages	839-842
Number of pages	4
State	Published - 2005
Event	39th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Oct 28 2005 → Nov 1 2005

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
Volume	2005
ISSN (Print)	1058-6393

Other

Other	39th Asilomar Conference on Signals, Systems and Computers
Country/Territory	United States
City	Pacific Grove, CA
Period	10/28/05 → 11/1/05

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Hybrid hard/soft interference cancellation based on list viterbi decoding. / Zhao, Wanlun; Wang, Renqiu; Giannakis, Georgios B.
Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers. 2005. p. 839-842 1599872 (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhao, W, Wang, R & Giannakis, GB 2005, Hybrid hard/soft interference cancellation based on list viterbi decoding. in Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers., 1599872, Conference Record - Asilomar Conference on Signals, Systems and Computers, vol. 2005, pp. 839-842, 39th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 10/28/05.

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Hybrid hard/soft interference cancellation based on list viterbi decoding

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