MIMO Cooperative Multiple-Relay Networks with OSTBCs over Nakagami-m Fading

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Hoc Pha, Quang Trung Duong, Hans-Jürgen Zepernick
Title: MIMO Cooperative Multiple-Relay Networks with OSTBCs over Nakagami-m Fading
Conference name: IEEE Wireless Communications and Networking Conference (WCNC)
Year: 2012
Publisher: IEEE
City: Paris
Other identifiers: Link to the final program of the conference: http://www.ieee-wcnc.org/T1.html
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: quang.trung.duong@bth.se
Language: English
Abstract: In this paper, the performance of a dual-hop multiple-input multiple-output (MIMO) cooperative multiplerelay network using orthogonal space-time block coding (OSTBC) transmission is examined. The fading environment is modeled as independent, not identical distributed (i.n.i.d.) Nakagami-m fading. Also, we consider the case that each terminal in the network has multiple-antennas, the network operates in channel state information (CSI)-assisted amplify-and-forward (AF) relaying mode, and the direct transmission from the source to the destination is applicable. In particular, we derive a closed-form expression for the moment generating function (MGF) of the instantaneous signal-to-noise ratio (SNR). Utilizing this derivation, we can analyze the SER performance of the considered system for M-ary phase shift-keying (M-PSK) and M-ary quadrature amplitude modulation (M-QAM) scheme. Also, the outage performance of the considered relay networks is evaluated. We further investigate the cooperative diversity behavior by deriving asymptotic approximations for the OP and the SER. Finally, numerical results are provided showing very close agreement between the analytical results and the Monte-Carlo simulations.
Subject: Telecommunications\General
Keywords: MIMO; OSTBCs; Ampify-and-Forward; Relay Networks; Nakagami-m Fading.
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