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International Journal of Antennas and Propagation
Volume 2014 (2014), Article ID 154261, 10 pages
http://dx.doi.org/10.1155/2014/154261
Research Article

Rateless Space Time Block Code for Massive MIMO Systems

Department of Electrical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia

Received 14 March 2014; Revised 25 June 2014; Accepted 1 July 2014; Published 3 August 2014

Academic Editor: Joonhyuk Kang

Copyright © 2014 Ali H. Alqahtani et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents a rateless space time block code (RSTBC) for massive MIMO systems. The paper illustrates the basis of rateless space time codes deployments in massive MIMO transmissions over wireless erasure channels. In such channels, data may be lost or is not decodable at the receiver due to a variety of factors such as channel fading, interference, or antenna element failure. We show that RSTBC guarantees the reliability of the system in such cases, even when the data loss rate is 25% or more. In such a highly lossy channel, the conventional fixed-rate codes fail to perform well, particularly when channel state information is not available at the transmitter. Simulation results are provided to demonstrate the BER performance and the spectral efficiency of the proposed scheme.