BER Performance Improvement of MIMO System
Roopa M1, B N Shobha2
1Roopa M, M.Tech Student, Department of Electronics and Communication Engineering, S J C Institute of Technology, Chickballapur (Karnataka), India.
2Dr. B N Shobha, Prof. & Head, Department of Electronics and Communication Engineering, S J C Institute of Technology, Chickballapur (Karnataka), India.
Manuscript received on 22 May 2019 | Revised Manuscript received on 12 June 2019 | Manuscript Published on 27 June 2019 | PP: 186-189 | Volume-8 Issue-1C May 2019 | Retrieval Number: A10320581C19/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Wireless Communication System has gained a lot of importance in the present times due to its high accuracy, greater extent of secure transfer and effectiveness. The major challenges faced by the modern digital wireless communication is to satisfy the ever growing demand of high speed reliable communication in multimedia and internet services with extremely limited frequency spectrum and limited power. Also wireless channel suffers from CCI and fading. MIMO is one of the technology is used to achieve the above requirements. The system efficiency reduces due to limited resources and the impairments of the wireless channels like noise and ISI these can be compensated by using equalization techniques. In this work the performance improvement of the MIMO system can be accomplished by using OSTBC, ML detector and MRC techniques. BER analysis is done under Rayleigh fading channel using BPSK modulation. Simulation results shows that ML equalizer with OSTBC using BPSK gives better performance.
Keywords: Multiple Input Multiple Output (MIMO), Maximum Ratio Combiner (MRC), Maximum Likelihood (ML), Orthogonal Space Time Block Code (OSTBC).
Scope of the Article: Measurement & Performance Analysis