Outage probability of cooperative diversity systems with opportunistic relaying based on decode-and-forward

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

doi:10.1109/t-wc.2008.071216

Cited by 51 publications

(31 citation statements)

References 10 publications

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“…Therefore, a complete outage performance study of cooperative relaying for such asymmetric and i.n.d fading channels is required. The outage probability of relaying networks over symmetric fading channel, in which all the links undergo the same fading distribution, is provided in several works Hwang et al (2007); Xu et al (2009);Zhao et al (2006); Savazzi & Spagnolini (2008); Michalopoulos & Karagiannidis (2008); Zou et al (2009);Vicario et al (2009). The outage probability for repetition-based AF relaying over Rayleigh channel is provided in Zhao et al (2007).…”

Section: Introductionmentioning

confidence: 99%

Outage Probability Analysis of Cooperative Communications over Asymmetric Fading Channel

Majhi¹,

Youssef²,

Hélard³

2010

Communications and Networking

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Section: Introductionmentioning

confidence: 99%

Outage Probability Analysis of Cooperative Communications over Asymmetric Fading Channel

Majhi¹,

Youssef²,

Hélard³

2010

Communications and Networking

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“…Simple lower and upper bounds were derived for the marginal statistics of the best-relay local SNRs and the outage probability of repetition DF ORe in Rayleigh fading in [5], taking account of the S-D link. It is noteworthy that considering the S-D link can substantially complicate the analysis of ORe.…”

Section: Introductionmentioning

confidence: 99%

“…It is noteworthy that considering the S-D link can substantially complicate the analysis of ORe. The examination in [5] was restricted to a sourcerelay-symmetric (S-R-sym. ), relay-destination-symmetric (R-D-sym.)…”

Section: Introductionmentioning

confidence: 99%

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Exact Closed-Form Expressions for the Outage Probability and Ergodic Capacity of Decode-and-Forward Opportunistic Relaying

Nikjah

Beaulieu

2009

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference

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Exact statistics of the local signal-to-noise ratios (SNRs) of the best relay in decode-and-forward (DF) opportunistic relaying (ORe) are derived. It is observed that although the different links are assumed to suffer independent fadings, the best-relay local SNRs are dependent. Both joint and marginal statistics are determined for the general case of nonidentical SNR distributions, and a source-relay-symmetric (S-R-sym.), relaydestination-symmetric (R-D-sym.) case. Both general fading and Rayleigh fading cases are considered. Using the statistics derived, exact, closed-form expressions for the outage probability and ergodic capacity of DF ORe are calculated in the S-R-sym., R-D-sym., Rayleigh fading case. The exact results for the outage probability show almost linearly increasing diversity order with the number of relays. The exact results for the ergodic capacity show a multiplexing gain almost equaling one half and a power gain increasing with the number of relays that exhibits diminishing returns.

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“…In [3], it has been shown using the upper bound on the sumrelay capacity that the opportunistic relay selection, for which the network resources available at the DF relay nodes are allocated only to the best relay node, outperforms the fixed multiple relay selection in terms of the outage probability minimization. An approximate outage probability expression for the opportunistic relaying based on the DF transmission has been derived in [5]. Viewing the relays as virtual antenna resources, the diversity-multiplexing tradeoff has been analyzed in [6] and [7].…”

Section: Introductionmentioning

confidence: 99%

Spectrum efficient cooperative relaying based on outage-multiplexing tradeoff analysis

Vorobyov

Ardakani

2009

2009 Conference Record of the Forty-Third Asilomar Conference on Signals, Systems and Computers

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Spectrum efficient multiple relay selection strategy for two-hop cooperative decode-and-forward relay networks is proposed for the case when the sum power among all relay nodes is limited. Based on the outage-multiplexing tradeoff (OMT), the number of active relay nodes is maximized so that the resulting sum-relay capacity is maximized while each relay outage capacity remains greater than or equal to a certain target level. Using asymptotic analysis, it is shown that for the proposed OMT relaying strategy the associated multiplexing and cooperative system diversity gains improve proportionally with the number of active relay nodes. It is also shown analytically that the proposed OMT relaying outperforms the conventional opportunistic single relaying in terms of the sum-relay capacity

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Outage probability of cooperative diversity systems with opportunistic relaying based on decode-and-forward

Cited by 51 publications

References 10 publications

Outage Probability Analysis of Cooperative Communications over Asymmetric Fading Channel

Outage Probability Analysis of Cooperative Communications over Asymmetric Fading Channel

Exact Closed-Form Expressions for the Outage Probability and Ergodic Capacity of Decode-and-Forward Opportunistic Relaying

Spectrum efficient cooperative relaying based on outage-multiplexing tradeoff analysis

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