S.Sindhu, M.Rajkumari, Sri Shakthi Institute of Engineering and Technology, Coimbatore, Tamilnadu, India.
DOI : 01.0401/ijaict.2014.01.31
International Journal of Advanced Information and Communication Technology
Received On : September 15, 2014
Revised On : October 23, 2014
Accepted On : November 20, 2014
Published On : December 05, 2014
Volume 01, Issue 08
Pages : 160-162
Abstract
In mobile communication system, video streaming applications have been increased rapidly and it demands more bandwidth. In order to satisfy the exponential growing demand of wireless multimedia services, a high speed data access is required. Therefore, various techniques have been proposed in recent years to achieve high system capacities. The MIMO concept has attracted lot of attention in wireless communications due to its potential to increase the system capacity without extra bandwidth. The performance of a MIMO-OFDM communication system significantly depends upon the channel estimation, as the knowledge of channel impulse response (CSI) removes ISI in the signals. Several channel estimation techniques for MIMO-OFDM systems were carried out for random sequences. The study of the performance of LSE and MMSE channel estimation techniques for video stream is performed. The performance of the estimators is presented in terms of the mean square estimation error (MSEE) and bit error rate (BER). For a given SNR, MMSE estimator shows better performance than LSE estimator. The complexity of MMSE estimators will be larger than LSE estimators but give better performance in comparison to LSE.
Keywords
MIMO-OFDM, LSE, MMSE, CDD
Cite this article
S.Sindhu, M.Rajkumari, “Channel Estimation in Broadband Wireless Transmission Systems Based On MMSE and LS Estimators” INTERNATIONAL JOURNAL OF ADVANCED INFORMATION AND COMMUNICATION TECHNOLOGY, pp.160-162, December 05, 2014.
Copyright
© 2014 S.Sindhu, M.Rajkumari. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.