Distributed orthogonal space-time block coding in wireless relay networks

Hoc Phan, Trung Q. Duong, Hans Jürgen Zepernick, Theodoros A. Tsiftsis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, the authors consider distributed orthogonal space-time block coding for relay-based channel state information-assisted amplify-and-forward networks. Specifically, they show that opportunistic relaying (OR) is an optimal solution in terms of instantaneous signal-to-noise ratio (SNR), that is, it provides the maximum instantaneous SNR under the constraint of fixed transmit power for the relays. In particular, instead of allocating the given transmit power to all relays, letting the best relay transmit with this power is an optimal solution for maximising the received SNR. To exhibit this benefit, Monte Carlo simulations are presented showing superior performance of the OR scheme compared to equal power allocation policy for the considered relay networks. For the considered optimal scenario, the authors further derive analytical expressions for the outage probability and symbol error rate (SER) over quasi-static independent, not necessarily identically distributed Nakagami-m fading channels. They further present asymptotically tight approximations for the outage probability and SER in the high SNR regime, rendering insights into the cooperative diversity behaviour. Finally, numerical results are provided to examine the effect of network parameters on the system performance of the considered network.

Original languageEnglish
Pages (from-to)1825-1835
Number of pages11
JournalIET Communications
Volume7
Issue number16
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Space-time block coding (STBC)
Signal to noise ratio
Outages
Channel state information
Fading channels

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications

Cite this

Phan, H., Duong, T. Q., Zepernick, H. J., & Tsiftsis, T. A. (2013). Distributed orthogonal space-time block coding in wireless relay networks. IET Communications, 7(16), 1825-1835. https://doi.org/10.1049/iet-com.2013.0251

Distributed orthogonal space-time block coding in wireless relay networks. / Phan, Hoc; Duong, Trung Q.; Zepernick, Hans Jürgen; Tsiftsis, Theodoros A.

In: IET Communications, Vol. 7, No. 16, 2013, p. 1825-1835.

Research output: Contribution to journalArticle

Phan, H, Duong, TQ, Zepernick, HJ & Tsiftsis, TA 2013, 'Distributed orthogonal space-time block coding in wireless relay networks', IET Communications, vol. 7, no. 16, pp. 1825-1835. https://doi.org/10.1049/iet-com.2013.0251
Phan, Hoc ; Duong, Trung Q. ; Zepernick, Hans Jürgen ; Tsiftsis, Theodoros A. / Distributed orthogonal space-time block coding in wireless relay networks. In: IET Communications. 2013 ; Vol. 7, No. 16. pp. 1825-1835.
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