eprintid: 397
rev_number: 6
eprint_status: archive
userid: 5
dir: disk0/00/00/03/97
datestamp: 2008-07-09
lastmod: 2013-07-04 11:24:29
status_changed: 2013-07-04 11:24:29
type: techreport
metadata_visibility: show
item_issues_count: 0
creators_name: D'Orazio, Leandro
creators_name: Sacchi, Claudio
creators_name: Donelli, Massimo
creators_name: Louveaux, Jérôme
creators_name: Vandendorpe, Luc
title: A Linear Multi-User Detector for STBC MC-CDMA Systems based on the Adaptive Implementation of the Minimum-Conditional Bit-Error-Rate Criterion and on Genetic Algorithm-assisted MMSE Channel Estimation
ispublished: unpub
subjects: TU
full_text_status: public
keywords: Transmission Systems,MIMO MC-CDMA, Bit-Error-Rate, Genetic Algorithm, MMSE channel estimation
abstract: The implementation of efficient baseband receivers characterized by affordable computational load is a crucial point in the development of transmission systems exploiting diversity in different domains. In this paper, we are proposing a linear multi-user detector for MIMO MC-CDMA systems with Alamouti’s Space-Time Block Coding, inspired by the concept of Minimum Conditional Bit-Error-Rate (MCBER) and relying on Genetic-Algorithm (GA)-assisted MMSE channel estimation. The MCBER combiner has been implemented in adaptive way by using Least-Mean-Square (LMS) optimization. Firstly, we shall analyze the proposed adaptive MCBER MUD receiver with ideal knowledge of Channel Status Information (CSI). Afterwards, we shall consider the complete receiver structure, encompassing also the non-ideal GA-assisted channel estimation. Simulation results evidenced that the proposed MCBER receiver always outperforms state-of-the-art receiver schemes based on EGC and MMSE criterion exploiting the same degree of channel knowledge (i.e. ideal or estimated CSI).
date: 2008
date_type: published
institution: University of Trento
department: informaticat
refereed: FALSE
referencetext: [1] M. Juntii, M. Vehkapera, J. Leinonen, V. Zexian, D. Tujikovic, S. Tsumura, S. Hara, "MIMO MC-CDMA Communications for Future Cellular Systems", IEEE Comm. Mag., Feb. 2005, pp. 118-124. 
[2] J. M. Auffray, J. F. Helard, "Performance of Multicarrier CDMA Technique Combined with Space-Time Block Coding over Rayleigh Channel", Proc. of IEEE 7th Int. Symp. on Spread Spectrum Tech. and Appl., Prague (CZ), Sept. 2-5, 2002, vol. 2, pp. 348-352. 
[3] S. Chen, "Adaptive Minimum Bit-Error-Rate Filtering", IEE Proceedings 7; Vision, Image and Signal Processing, vol. 151, Issue 1, Feb. 2004, pp. 76-85. 
[4] S. Chen, A. K. Samingan, B. Mulgrew, L. Hanzo, "Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA Signals in Multipath Channels", IEEE Trans. on Signal Process., vol. 49, no. 6, Jun. 2001, pp. 1240-1247. 
[5] S. J. Yi, C. C. Tsimenidis, O. R. Hinton, B. S. Sharif, "Adaptive Minimum Bit-Error-Rate Multi-User detection for Asynchronous MC-CDMA Systems in Frequency Selective Rayleigh Fading Channels", in Proc. of 14th IEEE Personal, Indoor and Mobile Radio Communications Conference (PIMRC 2003), Beijing (RPC), Sept. 7-10, 2003, vol. 2, pp. 1269-1273. 
[6] S. Sheng, A. Livingstone, L. Hanzo"Minimum Bit-Error-Rate design for Space-Time Equalization-based Multiuser Detection", IEEE Trans. on Comm, vol. 54, no. 5, May 2006, pp. 824-832. 
[7] A. Dua, U.B. Desai, R.K. Mallik, "Minimum Probability of Error-Based Methods for Adaptive Multi-User Detection in Multipath DS-CDMA Channels", IEEE Trans. on Wireless Comm., vol. 3, no. 3, May 2004, pp. 939-948. 
[8] P. Dayal, U.B. Desai, A. Mahanta"Minimum Conditional Probability of Error Detection for MC-CDMA", Proc. of IEEE 8th Int. Symp. on Spread Spectrum Tech. and Appl., Sydney (AUS), Aug.30-Sept.2 2004, pp. 51-55. 
[9] B. Widrow, M. Kamenetsky, "On the statistical efficiency of the LMS family of adaptive algorithms”, Proc. of 2003 IEEE Internat. Joint Conf. on Neural Networks (IJCNN2003), Portland (OR) Jul. 20-24, 2003, vol. 4, pp. 2872-2880. 
[10] P. Castoldi, "Multiuser detection in CDMA mobile terminals", Artech-House, Boston (MA): 2002. 
[11] D.N. Kalofonos, M. Stojanovic, J.G. Proakis, "On the performance of adaptive MMSE detectors for a MC-CDMA system in fast Fading Rayleigh channel", IEEE Trans. on Wireless Comm., vol. 2, no. 2, Mar. 2003, pp. 229-239.  
[12] S.M. Alamouti, "A Simple Transmit Diversity Technique for Wireless Communications", IEEE J. Selec. Areas in Comm., vol. 16, no. 8, Oct. 1998, pp. 1451-1458.  
[13] J. Yang, Y. Sun, J.M. Senior, N. Pem, "Channel Estimation for Wireless Communications using Space-Time Block Coding Techniques" Proc. of 2003 IEEE Int. Symp. on Circuits and Systems (ISCAS 2003), Bangkok (THA), May 25-28, 2003, vol. II, pp. II-220, II-223. 
[14] J. Wu, G.J. Saulnier"Orthogonal Space-Time Block Code Over Time-Varying Flat-Fading Channels"IEEE Trans on Comm., vol.55, no.5, May 2007, pp. 1077-1087. 
[15] W. Xu, Y. Wang, Z. Zhou, J. Wang, "Joint ML Channel Estimation and Data Detection for STBC via Novel Sphere Decoding Algorithms", Proc. of IEEE 61st Vehic. Tech. Conf. (VTC Spring), Stockholm (SW), May 30- June 1, 2005, vol. 1, pp. 434-437.  
[16] X. Hu, Y.H. Chew, "Performance of Space-Time Block Coded MC-CDMA System over Frequency Selective Fading Channel using Semi-blind Channel Estimation Technique", Proc. of the 2003 IEEE Wireless Communications and Networking Conf. (WCNC 2003), New Orleans (LA), Mar. 16-20, 2003, vol. 1, pp. 414-419. 
[17] C. Sacchi, M. Donelli, L. D'Orazio, R. Fedrizzi, F.G.B. De Natale"A Genetic Algorithm-based MMSE Receiver for MC-CDMA Systems Transmitting over Time-Varying Mobile channels"Electron. Letters, vol. 43, no.3, 1st Feb. 2007, pp. 172-173. 
[18] J. G. Proakis, D. G. Manolakis, "Digital Signal Processing", Macmillan Publishing Company, 1988. 
[19] D. E. Goldberg, "Genetic Algorithms in Search, Optimization and Machine Learning", Addison-Wesley, Reading, MA: 1999. 
[20] W. Sun, H. Li, M. Amin, "MMSE Detection for Space-Time coded MC-CDMA, "; Proc. of the 2003 IEEE Int. Conf. on Comm. (ICC'03), Seattle (WA), May 11-15, 2003, vol. 5, pp. 3452-3456.  
[21] Y.R. Tsoy, "The Influence of Population Size and Search Time Limit on Genetic Algorithm", Proc. of the 7th Korea-Russia International Symposium on Science and Technology (KORUS 2003), Uslan (KOR), 28 June-6 July 2003, vol. 3, pp. 181-187. 
citation:   D'Orazio, Leandro and Sacchi, Claudio and Donelli, Massimo and Louveaux, Jérôme and Vandendorpe, Luc  (2008) A Linear Multi-User Detector for STBC MC-CDMA Systems based on the Adaptive Implementation of the Minimum-Conditional Bit-Error-Rate Criterion and on Genetic Algorithm-assisted MMSE Channel Estimation.  [Technical Report]    (Unpublished)  
document_url: http://www.eledia.org/students-reports/397/1/DISI-08-029.pdf