Home // International Journal On Advances in Telecommunications, volume 9, numbers 3 and 4, 2016 // View article
Authors:
Styliani Fassoi
Emmanouel Michailidis
Athanasios Kanatas
Keywords: Amplify and forward (AF) relaying; multiple-input multiple-output (MIMO) systems; satellite communications; signal detection techiques
Abstract:
Multiple-input multiple-output (MIMO) satellite communication systems have received the attention of the research community over the last years. This paper proposes a downlink MIMO satellite-to-terrestrial (S2T) system aided by multiple amplify-and-forward (AF) terrestrial relay nodes. This system intends to provide robust, reliable, and efficient communication links and improve the spectral efficiency and the total capacity of the network. In particular, this paper mainly concentrates on investigating the performance of the proposed system and evaluating the bit-error-rate (BER) and the channel capacity. To model the satellite and terrestrial channel, the Loo and Rician statistical distributions are utilized, respectively. One major implementation difficulty of the MIMO technology is the signal separation (detection) problem at the receiving side of the communication link due to interference from multistream transmission. In this paper, the linear zero-forcing (ZF) and minimum mean square error (MMSE) multi-antenna signal detection techniques are employed. To improve the performance without significantly increasing the complexity, ordered successive interference cancellation (SIC) techniques are also exploited.
Pages: 35 to 43
Copyright: Copyright (c) to authors, 2016. Used with permission.
Publication date: December 31, 2016
Published in: journal
ISSN: 1942-2601