Indian Journal of Science and Technology
Year: 2016, Volume: 9, Issue: 9, Pages: 1-5
P. Rajani Kumari1*, K. Chenna Kesava Reddy2 and K. S. Ramesh1
1K. L. University, Guntur - 522502, Andhra Pradesh, India; [email protected], [email protected] 2Adama University, Adama, Ethiopia; [email protected]
*Author for Correspondence
P. Rajani Kumari K. L. University, Guntur - 522502, Andhra Pradesh, India; [email protected]
Objective: In this article performance evaluation of Multi Input Multi Output (MIMO) system using Alamouti and Spatial multiplexing with different modulation schemes is studied and in case of multi stream MIMO interference is suppressed by means of interference cancellation. Methods: In communication systems without any additional bandwidth MIMO offer considerable increase in data throughput and link range. In this paper performance of MIMO with Almouti code and spatial multiplexing is evaluated by means of BER (Bit Error Rate) performance under PSK and QAM modulation schemes. Findings: In this paper Minimum Mean Square Equalizer (MMSE) and Zero Force (ZF) equalizers are used for the estimation of received symbols. Estimates of MMSE and ZF are used for the Successive Interference Cancellation (SIC). In this article based on the received signal power an ordered successive interference cancellation is developed for maximum throughput. Improvements: The developed OSIC is tested with different modulation schemes and the performance are figured out for both SIC and OSIC.
Keywords: Almouti, MMSE, OSIC, SIC, Spatial Multiplexing, Throughput, ZF
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