Channel Estimation for LTE-MIMO System
Journal Title: International Journal of Electrical and Electronics Engineering Research (IJEEER) - Year 2017, Vol 7, Issue 4
Abstract
High transmission data rate, improved system capacity, spectral efficiency, flexible bandwidth operations and reliability are essential for future wireless communications systems. MIMO is a bandwidth efficient technique for establishing high capacity communication system. RF spectrum is a finite resource. Hence, in order to generate more throughput from existing bandwidth technology such as LTE is used. LTE along with MIMO promises to significantly boost data rates and overall system capacity. Capacity gain can be enhanced by varying the number of transmitters or receiver antennas. The gist of the paper is MIMO systems with correlated and uncorrelated channels and are acknowledged for different number of TXN and RXN antennas and different SNR over Rayleigh fading channel. We examine the utility of various channel capacity definitions, namely ergodic capacity and outage capacity. This paper proposes that by varying TXN antenna, a considerable gain in the system capacity is obtained when fixing RXN antenna. Also MIMO channel capacity will decrease when the correlated factor increase, but still we have a considerable gain in case when applying CSI technique.
Authors and Affiliations
Varsha Dewangan, Sandeep Bhad, Pankaj Mishra
Keywords
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