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Performance Comparison of MIMO-STBC Systems with Adaptive Semiblind Channel Estimation Scheme

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Abstract

Wireless communication is now a part of everyday life in the urban areas. Wireless LAN is mostly utilized communication system as an example. These wireless devices are data rate and range limited, for which the scientists are spending great efforts on finding ways to overcome these limitations. Multi input multi output (MIMO) antenna systems are the example through which these limitations have been reduced upto great extent which provides multilayer beamforming, diversity, and spatial multiplexing. Analysis of adaptive semiblind channel estimation scheme for MIMO antenna array systems with different code rate space time block coding (STBC) has been performed using the adaptive pilot assisted modulation scheme proposed earlier. Semi blind channel estimation method provides the best trade-off in terms of bandwidth overhead, computational complexity and latency. The result after using MIMO systems shows higher data rate and longer transmit range without any requirement of additional bandwidth or transmit power. This paper presents the detailed analysis of diversity coding techniques using MIMO antenna systems. Different STBC schemes have been explored and analyzed with the different code rate STBC using MATLAB environment and the simulated results have been compared in the semiblind environment which shows the improvement even in highly correlated antenna arrays, and is found close to the condition when channel state information is known to the channel.

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Acknowledgments

The author thankfully acknowledges the support provided by the authorities and management of Jaypee University of Engineering and Technology, Guna, India.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Jaypee University of Engineering and Technology, A.B.Road, Raghogarh, Guna, MP, India

    Ravi Kumar & Rajiv Saxena

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  1. Ravi Kumar
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  2. Rajiv Saxena
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Correspondence to Ravi Kumar.

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Kumar, R., Saxena, R. Performance Comparison of MIMO-STBC Systems with Adaptive Semiblind Channel Estimation Scheme. Wireless Pers Commun 72, 2361–2387 (2013). https://doi.org/10.1007/s11277-013-1154-4

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