Performance analysis of incremental opportunistic relaying over identically and non-identically distributed cooperative paths

Hwang, Kyu-Sung; Ko, Young-Chai; Alouini, Mohamed‐Slim

doi:10.1109/twc.2009.080381

Cited by 120 publications

(89 citation statements)

References 19 publications

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“…We compare the proposed opportunistic and probabilistic AM with three other modulation selection schemes: 1) the opportunistic relaying scheme [3], in which the best relay is always selected, 2) the incremental opportunistic relaying (IOR) [1], in which the best relay is used only when S − D alone is unable to support BPSK, and 3) the maximum spectral efficiency with adaptive modulations (MSE-AM) scheme [8], in which the amplify-and-forward (AF) is utilized and the constellation size is chosen to maximize the overall spectral efficiency. Note that in the case of IOR, when DF relaying is used and S − D alone is unable to support BPSK, the constellation size is chosen in the same fashion as [3].…”

Section: Simulationmentioning

confidence: 99%

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Adaptive Modulation in Decode-and-Forward Cooperative Communications With Limited Source-Relay CSI

Chang

Chien

2014

IEEE Commun. Lett.

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Abstract-In this letter, we study the problem of adaptive modulation (AM) in cooperative decode-and-forward (DF) relaying systems with limited channel state information (CSI) of the sourcerelay link. We first develop the signal-to-noise ratio (SNR)-based opportunistic AM and obtain the regions of the source-destination and relay-destination link SNR, by which whether cooperative relaying is needed and what constellation size should be chosen can be determined without requiring the source-relay link CSI. We also propose the probabilistic AM to further enhance the transmission rate. Simulation results demonstrate the effectiveness of the proposed AM criteria.Index Terms-Multi-node cooperative communications, adaptive modulation, decode-and-forward protocol.

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Section: Simulationmentioning

confidence: 99%

“…O PPORTUNISTIC adaptive modulations (AM) have been widely studied to enhance the spectral efficiency in cooperative relaying networks [1]- [5]. Ikki et al [2] developed a modulation selection scheme by comparing the signal-tonoise ratio (SNR) to a threshold after maximum-ratio combining (MRC) at the destination.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Modulation in Decode-and-Forward Cooperative Communications With Limited Source-Relay CSI

Chang

Chien

2014

IEEE Commun. Lett.

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“…Similarly, the outage probability of other possible asymmetric channels can be derived by using the above procedure. The upper bound of the outage probability of the opportunistic AF relaying can be derived simply by using the above method and Equation 8 in [7].…”

Section: Ubmentioning

confidence: 99%

Outage Performance of Opportunistic Amplify-and-Forward Relaying over Asymmetric Fading Environments

Majhi¹,

Nasser²,

Hélard

2010

IJCNS

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This letter analyzes the outage probability of opportunistic amplify-and-forward relaying over asymmetric and independent but non-identically distributed (i.n.d) fading environments. The work investigates the scenarios where cooperative nodes are located at different geographical locations. As a result, the different signals are affected by different i.n.d fading channels, one may undergo Rician fading distribution and others may undergo Rayleigh fading distribution. In this letter, a lower bound of the outage probability for various asymmetric fading environments is derived at high SNR by applying the initial value theorem. The analytical model is validated through Monte-Carlo simulation results.

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“…Furthermore, [8] analyzed adaptive modulation method for incremental relaying system. In [9], variable-rate transmission of a cooperative system with AF fixed relay (AFFR) for Rayleigh fading has been considered.…”

Section: Introductionmentioning

confidence: 99%

Low complexity adaptive transmission scheme for cooperative networks with decode-and-forward relay

Amiri¹,

Olfat²

2014

7'th International Symposium on Telecommunications (IST'2014)

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Abstract-In this paper, we consider adaptive quadratic amplitude modulation (QAM) for a cooperative network consists of a source, one decode-and-forward (DF) relay and a destination which are single antenna systems. For increasing the spectral efficiency of the system, we use adaptive modulation method for data transmission. We propose a new adaptive modulation scheme which has less complexity than available schemes. Then, we analyze average spectral efficiency (ASE), average bit error performance (ABEP) and outage probability of the proposed scheme. Computer simulation results corroborate our theoretical relations; furthermore, it shows that our proposed scheme has the same performance as maximum spectral efficiency scheme (MSES) with much lower complexity and has better performance than some other schemes.

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Performance analysis of incremental opportunistic relaying over identically and non-identically distributed cooperative paths

Cited by 120 publications

References 19 publications

Adaptive Modulation in Decode-and-Forward Cooperative Communications With Limited Source-Relay CSI

Adaptive Modulation in Decode-and-Forward Cooperative Communications With Limited Source-Relay CSI

Outage Performance of Opportunistic Amplify-and-Forward Relaying over Asymmetric Fading Environments

Low complexity adaptive transmission scheme for cooperative networks with decode-and-forward relay

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