Generalized Selection Combining Scheme for Orthogonal Space-Time Block Codes with M-QAM and M-PAM Modulation Schemes

被引：2

作者：

Bhaskar, Vidhyacharan ^{[1
,2
]}

Kandpal, Divya ^{[3
]}

机构：

[1] San Francisco State Univ, Dept Elect & Comp Engn, 1600 Holloway Ave, San Francisco, CA 94132 USA

[2] Northwestern Polytech Univ, Dept Elect Engn, 47650 Westinghouse Dr, Fremont, CA 94539 USA

[3] SRM Univ, Dept Elect & Commun Engn, Kattankulathur 603203, Tamil Nadu, India

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2017年 / 94卷 / 03期

关键词：

Multiple-input multiple-output; Generalized selection combining; Maximal ratio combining; Alamouti scheme; Orthogonal space-time block code; Half rate and full rate diversity; TRANSMIT ANTENNA SELECTION; ALAMOUTI-MIMO-SYSTEMS; PERFORMANCE ANALYSIS; ERRORS;

D O I：

10.1007/s11277-016-3702-1

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Multiple-input multiple-output (MIMO) systems implement multiple antennas to enhance diversity gain of wireless communication systems. Earlier work in generalized selection combining (GSC) focused on single-input multiple-output systems without space-time coding. Recently, with the aid of space-time coding, diversity gain became possible using multiple transmit antennas. In this paper, GSC scheme is applied to orthogonal space-time block codes (OSTBC) for 4 x L and 8 x L MIMO systems with various modulation schemes like M-PSK, M-QAM, and M-PAM in a slowly fading Rayleigh channel. The performance of GSC for half rate-full diversity, full rate-full diversity, and 3/4 rate-full diversity OSTBC is discussed and compared. Approximate closed-form expressions for symbol error rate (SER) and ergodic capacity for various OSTBCs are derived. The impact of channel estimation errors on system performance is also examined. Approximate closed-form expressions for performance bounds on SER and ergodic capacity of GSC for MIMO OSTBC are also derived and plotted.

引用

页码：1619 / 1641

页数：23

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