Alamouti space-time coded relay strategy for wireless networks

Khajehnouri, N.; Sayed, Ali H.

doi:10.1109/ssp.2005.1628569

Cited by 4 publications

(10 citation statements)

References 7 publications

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“…The symbols of both the users are taken from QPSK constellation and γ is kept as 1/5. shows the SER versus SNR plots for Alamouti relaying for single user [8] and the proposed trivial relaying scheme for two users. The trivial HDRAC scheme is about 2 dB poorer than the conventional Alamouti relaying scheme [8] using two relays.…”

Section: Performance Evaluation Of Trivial Relaying Strategymentioning

confidence: 99%

“…shows the SER versus SNR plots for Alamouti relaying for single user [8] and the proposed trivial relaying scheme for two users. The trivial HDRAC scheme is about 2 dB poorer than the conventional Alamouti relaying scheme [8] using two relays. The timing diagram of the conventional Alamouti relaying scheme [8] is shown in Fig.…”

Section: Performance Evaluation Of Trivial Relaying Strategymentioning

confidence: 99%

“…It has been shown in the literature that multiple-input multiple-output (MIMO) techniques and cooperative relaying may be combined to provide spatial and temporal transmit diversity and path loss compensation [3,4]. There have been several useful works on relay strategies for cooperative systems [6][7][8]. A multiple relay network with an appropriate cooperative code construction that guarantees full spatial diversity gain is discussed in [7].…”

Section: Introductionmentioning

confidence: 99%

“…A multiple relay network with an appropriate cooperative code construction that guarantees full spatial diversity gain is discussed in [7]. In [8], an optimum relay strategy for Alamouti space-time (S-T) code is given for any number of relay nodes and a single source-destination pair. However, this performance gain and cost efficiency is achieved on the cost of significant reduction of the data rate.…”

Section: Introductionmentioning

confidence: 99%

“…We propose relaying strategies for HDRACs for two-user and multi-user cooperative communication system. The proposed relaying strategies are able to save significant number of time-slots as compared to the conventional relaying scheme [8] with a minute performance loss.…”

Section: Introductionmentioning

confidence: 99%

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Multi-User Relaying of High-Rate Space–Time Code in Cooperative Networks

Bhatnagar

Arti

Hjørungnes

et al. 2009

Wireless Pers Commun

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In this paper, we propose high-rate space-time coding for cooperative wireless networks to reduce the overall delay incurred in relaying signals to multiple receivers. The relay structure is optimized in order to achieve maximum SNR at the receiver nodes. The proposed scheme provides a significant reduction in the delay required for the relaying and transmission of the signals to the multiple receivers with a minute loss in performance. We have also shown by simulation that this loss in the performance could be recovered by selecting more number of relays. We propose two relaying strategies for high-rate space-time codes, which are very useful in providing high data-rate in wireless cooperative networks.

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Section: Performance Evaluation Of Trivial Relaying Strategymentioning

confidence: 99%