Design and Performance of Adaptive Polarized MIMO MC-SS-CDMA System for Downlink Mobile Communications

In this paper, an adaptive polarized Multiple-Input Multiple-Output (MIMO) Multicarrier Spread Spectrum Code Division Multiple Access (MC-SS-CDMA) system is designed for downlink mobile communications. The proposed system will be examined in Frequency Division Duplex (FDD) mode for both macro urban and suburban environments. For the same transmission bandwidth, a performance comparison between both nonoverlapped and orthogonal Frequency Division Multiplexing (FDM) schemes will be presented. Also, the proposed system will be compared with both the closed loop vertical MIMO MC-SS-CDMA system and the synchronous vertical STBC-MIMO MC-SS-CDMA system. As will be shown, the proposed system introduces a significant performance gain as well as reducing the spatial dimensions of the MIMO system and simplifying the receiver implementation. The effect of the polarization diversity characteristics on the BER performance will be discussed. Also, the impact of excluding the cross-polarization MCSS- CDMA blocks in the base station will be investigated. In addition, the system performance will be evaluated under different Feedback Information (FBI) rates for slowly-varying channels. Finally, a performance comparison for vehicular and pedestrian environments will be presented




References:
[1] J. F. Valenzuela-Valdes, M. A. Garcia-Fernandez, A. M. Martinez-Gonzalez, D. Sanchez-Hernandez, "The role of polarization diversity
for MIMO systems under Rayleigh-Fading environments," IEEE
Antennas and wireless prop. letters, vol. 5, pp. 534-536, Dec. 2006.
[2] V. Erceg, H. Sampath, and S. Catreux-Erceg, "Dual-polarization versus
single-polarization MIMO channel measurement results and modeling," IEEE Trans. Wireless Commun., vol. 5, pp. 28-33, Jan. 2006.
[3] L. Jiang, L. Thiele and V. Jungnickel, "On the modelling of polarized MIMO channel," 13th European Wireless Conf. (EW'07), Paris, France,
Apr. 2007.
[4] C. Oestges, M. Guillaud, M. Debbah, "Multi-Polarized MIMO Communications: Channel Model, Mutual Information and Array
Optimization," IEEE Wireless Communications and Networking Conference (WCNC'07) , pp. 1057-1061, Mar. 2007.
[5] Y.H. Kim, I. Song, H.G. Kim, and J. Lee, "Design and performance analysis of a convolutionally coded overlapping multicarrier DS/CDMA system," IEEE Trans. Veh. Technol., vol. 49, no. 5, pp. 1950-1966,
Sept. 2000.
[6] W. Xu and L. B. Milstein, "On the performance of multicarrier RAKE
systems," IEEE Trans. Commun., vol. 49, no. 10, pp. 1812-1823, Oct.2001.
[7] L. Yang and L. Hanzo, "Performance of fractionally spread multicarrier
CDMA in AWGN as well as slow and fast Nakagami-m fading channels," IEEE Trans. Veh. Technol., vol. 54, no. 5, pp. 1817-1827, Sept. 2005.
[8] N.Yee, J-P.Linnartz and G.Fettweis, "Multi-carrier CDMA in indoor wireless radio networks," in Proc. IEEE International Symposium on
Personal, Indoor and Mobile Radio Commun. (PIMRC'93), Yokohama, Japan, pp.109-113, Sept. 1993.
[9] S. Hara and R. Prasad, "Design and performance of multicarrier CDMA system in frequency-selective Rayleigh fading channels," IEEE Trans.
Veh. Technol., vol 48, no.5, pp. 1584-1595, Sep. 1999.
[10] K. Fazel and S. Kaiser, "Multi-Carrier and Spread Spectrum Systems,"
John Wiley & Sons, New York, NY, USA, 2003.
[11] B. Lee, S. Kwon and J. Choi, "Polarization Diversity Microstrip Base
Station Antenna at 2 GHz using T-shaped Aperture-coupled Feeds,"
IEEE Proc.-Microw. Antennas Propag., vol. 148, no. 5, pp. 334-338, Oct. 2001.
[12] K. Meksamoot, M. Krairiksh and J. Takada, "A Polarization Diversity
PIFA on Portable Telephone and the Human Body Effects on Its Performance," IEICE Trans. on Commun., vol. E84-B no. 9, pp. 2460-2467, Sept. 2001.
[13] R. G. Vaughan, "Polarization diversity in mobile communications,"
IEEE Trans. Veh. Technol., vol. 39, no. 3, pp. 177-186, Aug. 1990.
[14] F. Lotse, J.-E. Berg, U. Forssen, and P. Idahl, "Base station polarization
diversity reception in macrocellular systems at 1800 MHz," in Proc.
IEEE Veh. Technol. Conf., Atlanta, GA, 1996, pp. 1643-1646.
[15] J. Jootar, J. F. Diouris and J. R. Zeidler, "Performance of polarization
diversity in correlated Nagagami-m fading channels," IEEE Trans. Veh.
Technol., vol. 55, no. 1, pp. 128-136, Jan 2006.
[16] J. M. Auffray and J. F. Helard, "Performance of multicarrier CDMA
techniques combined with space-time block coding over Rayleigh channel," IEEE 7th Int. Sump. On Spread-Spectrum Tech. & Appl.,
Pargue, Czech Republic, vol. 2, pp. 348-352, Sept. 2002.
[17] F. Portier, J. Y. Baudais and J. F. Helard, Performance of STBC MCCDMA
systems over outdoor realistic MIMO channels," in Proc. IEEE Veh. Technol. Conf., Los Angeles, pp. 2409-2413, Sept. 2004.
[18] L. D-Orazio, C. Sacchi, R. Fedrizzi, F. De Natale, "An Adaptive Minimum-BER Approach for Multi-User Detection in STBC-MIMO
MC-CDMA Systems", Proc. of 2007 IEEE GLOBECOM Conf., Washington D.C. (WA), pp. 3427 - 3431, Nov. 2007.
[19] J. G. Andrews and T. H. Y. Meng, "Performance of multicarrier CDMA with successive interference cancellation in a multipath fading channel," IEEE Trans. on Commun., vol. 52, no. 5, pp. 811-822, May 2004.
[20] IEEE C802.20-04 "Channel Models for IEEE 802.20 MBWA System
Simulations," Rev. 06, Oct. 26, 2004.