Indian Journal of Science and Technology

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Objectives: This paper elucidates the analytical study of the diversity schemes and the channel estimation techniques. Methods/Analysis: The future generation wireless communication systems require high speed data connection with lower bandwidth usage and high QoS with minimal system complexity. So, Multiple-Input Multiple-Output (MIMO) is one of the best and suitable solutions for future wireless system demands and not disturbing the bandwidth. MIMO offers spatial multiplexing and diversity gains. Findings: The combination of Orthogonal Frequency Division Multiplex (OFDM) with MIMO enables the users to get the advantages of both OFDM and MIMO and Spatial multiplexing concept is used in this system to increasing the spectral efficiency of a system. The signal fading is caused by destructive interference. Novelty/ Improvement: To improve the signal quality, we can use the different diversity schemes and channel estimation techniques and discussed in this paper detail.

Keywords

Channel Estimation, Diversity Gain, MIMO, Multiplexing, OFDM.
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