Abstract
We propose to simplify the inverse matrix computation of the iterative MMSE multiuser detector by using a low-complexity polynomial-expansion matrix approximation. This approximation is an application of the polynomial-expansion multiuser detector. The number of stages is set to the number of users to obtain a linear complexity. Simulations under AWGN and asynchronous multipath channels show that the approximation performs as well as the exact inverse implementation for iterative MMSE multiuser detector.
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References
S. Verdu, “Minimum Probability of Error for Asynchronous Gaussian Multiple-Access Channels”, IEEE Transactions on Information Theory, pp. 86-96, 1986.
S. Moshavi, “Multi-user Detection for DS-CDMA Communications”, IEEE Communications Magazine, pp. 124-136, 1996.
M. Honig and M.K. Tsatsanis, “Adaptive Techniques for Multiuser CDMA Receivers”, IEEE Signal Processing Magazine, pp. 49-61, 2000.
C. Berrou, A. Glavieux and P. Thitimajshima, “Near Shannon Limit Error-correcting Coding and Decoding: Turbo Codes”, in IEEE Proceedings, ICC'93, Geneva, Switzerland, 1993, pp. 1064-1070.
M. Moher, “An Iterative Multiuser Decoder for Near-capacity Communications”, IEEE Transactions on Communications, pp. 870-880, 1998.
M.C. Reed, C.B. Schlegel, P.D. Alexander and J.A. Asentorfer, “Iterative Multiuser Detection for CDMA with FEC: Near-single-user Performance”, IEEE Transactions on Communications, pp. 1693-1699, 1998.
J.G. Proakis, Digital Communications, Singapore: McGraw-Hill International Editions, 1995.
R.W. Kerr, P.S. Guinand and M. Moher, “An Iterative Multi-user Decoder with Soft-interference Cancellation”, IEEE International Conference on Communications, ICC'99, Vol. 1, pp. 46-50, 1999.
K. Kettunen and T. Laakso, “Iterative Multiuser Receiver Utilizing Soft Decoding Information”, IEEE International Conference on Communications, ICC'99, Vol. 2, pp.942-946, 1999.
X. Wang and H.V. Poor, “Iterative (Turbo) Soft Interference Cancellation and Decoding for Coded CDMA”, IEEE Transactions on Communications, pp. 1046-1061, 1999.
S. Moshavi, E.G. Kanterakis and D.L. Schilling, “Multistage Linear Receivers for DS-CDMA Systems”, International Journal of Wirelress Information Networks, pp. 1-17, 1996.
Z.D. Lei and T.J. Lim, “Simplified Polynomial-expansion Linear Detectors for DS-CDMA Systems”, IEE Electronics Letters, pp. 1561-1563, 1998.
A.J. Viterbi, “An Intuitive Justification and a Simplified Implementation of the Map Decoder for Convolutional Codes”, IEEE Journal on Selected Areas in Communications, pp. 260-264, 1998.
A. Ambroze, G. Wade and M. Tomlinson, “Iterative Map Decoding for Serial Concatenated Convolutional Codes”, IEE Proceedings - Communications, pp. 53-59, 1998.
C. Boulanger, L. Ouvry and M.B. des Noes, “Multistage Linear DS-CDMA Receivers”, IEEE Proceedings, 5th International Symposium on Spread Spectrum Techniques and Applications, Vol. 2, pp. 663-667, 1998.
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Pan, J.Y., Soh, C.B. & Gunawan, E. Simplified Iterative MMSE Multiuser Detector Using Polynomial-Expansion Approximation. Wireless Personal Communications 24, 1–9 (2003). https://doi.org/10.1023/A:1022328922664
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DOI: https://doi.org/10.1023/A:1022328922664