Performance of full rate non-orthogonal STBC in spatially correlated MIMO systems
Keywords:WCDMA, BER, SNR, STBC, WiMAX, MIMO system, spatial correlation, antenna spacing, full rate full diversity space time block code
AbstractSpatial correlation is a crucial impairment for practical Multiple Input Multiple Output (MIMO) wireless communication systems. It is important to consider spatial correlation between antennas in actual communication scenario at both sides, i.e. transmit and receive side. Furthermore, we have considered nonorthogonal full rate STBC in MIMO systems equipped with four transmit antennas and four receive antennas in a quasi-static Rayleigh fading channel. In this paper, Bit Error Rate (BER) performance of full rate non-orthogonal Space Time Block code (STBC) is obtained using simulations in MIMO wireless communication systems. Spatial correlation is assumed between antennas at both the transmitter and the receiver sides. For this analysis, we have considered various transmit antenna spacing values of dt = 0.1π, 0.2π, and 0.4π keeping fixed dr = 0.1π and various receive antenna spacing values of dr = 0.1π, 0.2π, and 0.4π keeping fixed dt = 0.1π. The obtained results show that the transmitting diversity is more serious than the receiving diversity in the spatially correlated antenna environment for the specified signal-to-noise ratio. This study will be useful for actual wireless communication implementation where spatial correlation antennas are present in the practical environment of the MIMO wireless communication system.
S. M. Alamouti, “A simple transmit diversity technique for wireless communications,” IEEE J. Selected Areas Commun., v.16, No. 8, p.1451, 1998. DOI: 10.1109/49.730453.
V. Tarokh, H. Jafarkhani, A. R. Calderbank, “Space-time block codes from orthogonal designs,” IEEE Trans. Inf. Theory, v.45, No. 5, p.1456, 1999. DOI: 10.1109/18.771146.
O. Tirkkonen, A. Boariu, A. Hottinen, “Minimal non-orthogonality rate 1 space-time block code for 3 + Tx antennas,” Proc. of IEEE 6th Int. Symp. on Spread-Spectrum Tech. and Appl., ISSSTA2000, 6-8 Sept. 2000, Parsippany, USA, IEEE, 2000, p.429–432. DOI: 10.1109/ISSSTA.2000.876470.
E. Basar, U. Aygolu, “Full-rate full-diversity STBCs for three and four transmit antennas,” Electron. Lett., v.44, No. 18, p.1076, 2008. DOI: 10.1049/el:20081676.
M. K. Ozdemir, H. Arslan, E. Arvas, “On the correlation analysis of antennas in adaptive MIMO systems with 3-D multipath scattering,” Proc. of IEEE Wireless Communications and Networking Conf., 21-25 Mar. 2004, Atlanta, USA, IEEE, 2004, Vol. 1, p.295-299. DOI: 10.1109/WCNC.2004.1311560.
P.-C. Hsieh, F.-C. Chen, “A new spatial correlation formulation of arbitrary AoA scenarios,” IEEE Antennas Wireless Propag. Lett., v.8, p.398, 2009. DOI: 10.1109/LAWP.2009.2019311.
J. W. Wallace, M. A. Jensen, “Modeling the indoor MIMO wireless channel,” IEEE Trans. Antennas Propag., v.50, No. 5, p.591, 2002. DOI: 10.1109/TAP.2002.1011224.
S. Mikki, D. Sarkar, Y. Antar, “Near-field cross-correlation analysis for MIMO wireless communications,” IEEE Antennas Wireless Propag. Lett., v.18, No. 7, p.1357, 2019. DOI: 10.1109/LAWP.2019.2916627.
D. Tang, X. Xi, J. Zhou, “A novel MIMO channel model for congested communication environments,” IEEE Access, v.7, p.53754, 2019. DOI: 10.1109/ACCESS.2019.2912321.
S. Kim, H. Cha, J. Kim, S.-W. Ko, S.-L. Kim, “Sense-and-predict: harnessing spatial interference correlation for cognitive radio networks,” IEEE Trans. Wireless Commun., v.18, No. 5, p.2777, 2019. DOI: 10.1109/TWC.2019.2908168.
D. Chauhan, J. Bhalani, “Performance of nonlinear detectors in spatial multiplexing for spatially correlated channels,” Radioelectron. Commun. Syst., v.60, No. 7, p.297, 2017. DOI: 10.3103/S0735272717070020.
M. B. El Mashade, A. H. Toeima, “Performance characterization of spatial diversity based optical wireless communication over atmospheric turbulence channels,” Radioelectron. Commun. Syst., v.61, No. 4, p.135, 2018. DOI: 10.3103/S0735272718040015.
H. Jafarkhani, Space-Time Coding. Theory and Practice, 1st ed. Cambridge University Press, 2005, pp. 74-76. DOI: 10.1017/CBO9780511536779.