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QoS Provisioning Relay Selection in Random Relay Networks.

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Title: QoS Provisioning Relay Selection in Random Relay Networks.
Authors: Cho, Sung-Rae1, Choi, Wan1, Huang, Kaibin2
Source: IEEE Transactions on Vehicular Technology. Jul2011, Vol. 60 Issue 6, p2680-2689. 10p.
Subjects: Probability theory, Quality of service, Poisson processes, Radio transmitter fading, Stochastic processes
Abstract: In this paper, we propose an analytical framework for determining the outage probability of random and best relay selection schemes given a Poisson field of relay nodes and the presence of path loss and fading. For relay selection, relays geographically close to the source and destination are preferred to others. This selection guideline ensures a target quality of service (QoS) and reduces the signaling overhead and the relay selection delay. A spatial region called the QoS region is obtained for the random relay selection and is shown to shrink as the distance between the source and the destination increases and the interfering node density increases. When the QoS region for random relay selection is not large enough and cannot probabilistically ensure a reliable relay therein, the best relay selection is employed since the required relay node density and selection range for a desired QoS can be reduced for the best relay selection. The gain of the best relay selection with respect to the random relay selection is quantified in terms of relay node density reduction and coverage extension due to selection diversity. [ABSTRACT FROM PUBLISHER]
Copyright of IEEE Transactions on Vehicular Technology is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: QoS Provisioning Relay Selection in Random Relay Networks.
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  Data: In this paper, we propose an analytical framework for determining the outage probability of random and best relay selection schemes given a Poisson field of relay nodes and the presence of path loss and fading. For relay selection, relays geographically close to the source and destination are preferred to others. This selection guideline ensures a target quality of service (QoS) and reduces the signaling overhead and the relay selection delay. A spatial region called the QoS region is obtained for the random relay selection and is shown to shrink as the distance between the source and the destination increases and the interfering node density increases. When the QoS region for random relay selection is not large enough and cannot probabilistically ensure a reliable relay therein, the best relay selection is employed since the required relay node density and selection range for a desired QoS can be reduced for the best relay selection. The gain of the best relay selection with respect to the random relay selection is quantified in terms of relay node density reduction and coverage extension due to selection diversity. [ABSTRACT FROM PUBLISHER]
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  Data: <i>Copyright of IEEE Transactions on Vehicular Technology is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1109/TVT.2011.2153220
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 2680
    Subjects:
      – SubjectFull: Probability theory
        Type: general
      – SubjectFull: Quality of service
        Type: general
      – SubjectFull: Poisson processes
        Type: general
      – SubjectFull: Radio transmitter fading
        Type: general
      – SubjectFull: Stochastic processes
        Type: general
    Titles:
      – TitleFull: QoS Provisioning Relay Selection in Random Relay Networks.
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            NameFull: Cho, Sung-Rae
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              Text: Jul2011
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              Y: 2011
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