A Study on QoS Improvement using MIMO-OFDM Technique

T  Kannan; T  Krishnakumar; M  Karthikeyan  and K  Selvakumar

doi:10.17485/ijst/2016/v9i35/101851

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A Study on QoS Improvement using MIMO-OFDM Technique

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2016/v9i35/101851

Year: 2016, Volume: 9, Issue: 35, Pages: 1-4

Original Article

A Study on QoS Improvement using MIMO-OFDM Technique

T. Kannan¹ , T. Krishnakumar² , M. Karthikeyan³ and K. Selvakumar⁴

¹Bharath University, Chennai – 600073, Tamil Nadu, India; [email protected]
² Strategy and Planning, BIHER, Chennai – 600073, Tamil Nadu, India; [email protected]
³ Tamil Nadu College of Engineering, India; [email protected]
⁴SRM University, Chennai – 603203, Tamil Nadu, India; [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

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