Comparative Analysis of Various Multiuser Detection Techniques in SDMA-OFDM System Over the Correlated MIMO Channel Model for IEEE 802.16n

SDMA (Space-Division Multiple Access) is a MIMO (Multiple-Input and Multiple-Output) based wireless communication network architecture which has the potential to significantly increase the spectral efficiency and the system performance. The maximum likelihood (ML) detection provides the optimal performance, but its complexity increases exponentially with the constellation size of modulation and number of users. The QR decomposition (QRD) MUD can be a substitute to ML detection due its low complexity and near optimal performance. The minimum mean-squared-error (MMSE) multiuser detection (MUD) minimises the mean square error (MSE), which may not give guarantee that the BER of the system is also minimum. But the minimum bit error rate (MBER) MUD performs better than the classic MMSE MUD in term of minimum probability of error by directly minimising the BER cost function. Also the MBER MUD is able to support more users than the number of receiving antennas, whereas the rest of MUDs fail in this scenario. In this paper the performance of various MUD techniques is verified for the correlated MIMO channel models based on IEEE 802.16n standard.




References:
[1] M. Jiang, J. Akhtman and L. Hanzo, "Iterative Joint Channel Estimation
and Multi-User Detection for Multiple-Antenna Aided OFDM
Systems," IEEE Transactions on Wireless Communications, Vol. 6,
Aug. 2007.
[2] L. Hanzo, M. Munster, B. J. Choi, and T. Keller, "OFDM and MCCDMA
for Broadband Multi-User Communications, WLANs and
Broadcasting," IEEE Press/Wiley Publications, 2003.
[3] Tzi-Dar Chiueh, Pei-Yun Tsai, "OFDM baseband receiver design for
wireless communications," Wiley Publisher, 2007.
[4] Ming Jiang, S. Xin, and L. Hanzo, "Hybrid Iterative Multiuser
Detection for Channel Coded Space Division Multiple Access OFDM
Systems," IEEE Transactions on Vehicular Technology, Vol. 55, No. 1,
Jan. 2006.
[5] Ye Li, "OFDM and Its Wireless Applications: A Survey," IEEE
Transactions on Vehicular Technology, vol. 58, no. 4, May. 2009.
[6] Ming Jiang, Hanzo, L, "Multiuser MIMO-OFDM for Next-Generation
Wireless Systems," Proceedings of the IEEE, Vol. 95, No. 7, Jul 2007.
[7] Nirmalendu Bikas Sinha, M. Nandy, R. Bera and M. Mitra, "Channel
Estimation and Performance Enhancement of Hybrid Technology for
Next Genaration Communication System," International Journal of
Research and Reviews in Applied Sciences, Vol.1, No 2, Nov. 2009.
[8] Sheng Chan, Ahmad K. Samingan, Bernard Mulgew, and Lajos Hanzo,
"Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA
Signals in Mutipath Channels," IEEE Transactions on Signal
Pracessing, Vol. 49, N0. 6, Jun. 2001.
[9] R. C. de Lamare and R. Sampaio-Neto, "Adaptive MBER Decision
Feedback Multiuser Receivers in Frequency Selective Fading Channels"
IEEE Communications Letters, Vol. 7, No. 2, Feb. 2003.
[10] V. Erceg, K.V.S. Hari, M.S. Smith, D.S. Baum et al, "Channel Models
for Fixed Wireless Applications," Contribution IEEE 802.16.3c-
01/29r1, Feb. 2001.
[11] P. Vandenameele, L. V. D. Perre, M. Engels, B. Gyselinckx, and H. D.
Man, "A combined OFDM/SDMA approach," IEEE Journal on Select
Areas in Communications, vol. 18, no. 11, , November 2000.
[12] Jin-Sung Kim, Sung-Hyun Moon, and Inkyu Lee, "A New Reduced
Complexity ML Detection Scheme for MIMO Systems," IEEE
Transactions on Communications, vol. 58, no. 4, April 2010.
[13] C.-C. Yeh and J. R. Barry, "Adaptive Minimum Bit-Error Rate
Equalization for Binary Signalling," IEEE Transactions on
Communications, Vol. 48, No. 7, Jul. 2000.
[14] M. Y. Alias, A. K. Samingan, S. Chen, and L. Hanzo, "Multiple
Antenna Aided OFDM Employing Minimum Bit Error Rate Multiuser
Detection," IEE Electronics Letters, Vol. 39, No. 24, 27 Nov. 2003.
[15] YANG Fan, LI Dao-ben, "The correlated MIMO channel model for
IEEE 802.16n," The Journal of China Universities of Posts and
Telecommunications, Vol. 14, No. 3, pp, 16-21, Sep. 2007.
[16] Jehad I. Ababneh, Taimour F. Aldalgamouni and Asmaa A. Alqudah,
"Minimum Bit Error Rate Multiuser Detection of SDMA-OFDM
System Using Differential Evolutionary Algorithm," IEEE 6th
International Conference on Wireless and Mobile Computing,
Networking and Communications, 2010.