Opportunistic Relaying in Cellular Network for Capacity and Fairness Improvement

Song, Seungho; Son, Kwang Hee; Lee, Hyang-Won; Chong, Song

doi:10.1109/glocom.2007.838

Cited by 25 publications

(35 citation statements)

References 9 publications

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“…This verifies the analysis in Section IV. Besides, it can be found that the semi-distributed scheme gets almost equivalent capacity with that of the scheme in [11]. Figure 4 also shows that the direct transmission has relatively poor performance than other schemes.…”

Section: Simulation Resultsmentioning

confidence: 72%

“…The final relay allocation is made by the source node in centralized manner. Therefore, compared to the scheme in [11], the proposed scheme has stringent constraints on system overhead.…”

Section: The Semi-distributed Relay Selection Schemementioning

confidence: 99%

“…As a result, the computational complexity can be effectively reduced. But in [11], the relay node is considered to be feasible as long as sd si β β > . Since sd s C β < , for the relay selection scheme in [11], the searching time will be increased.…”

Section: Capacity Analysis Of the Cellular Network With Cooperative Rmentioning

confidence: 99%

“…Firstly, the channel gain between the source and the first relay node is estimated, where we denote it as , s l β . s C is the target threshold as defined in Equation (11). If the current path is acceptable (i.e.…”

Section: Switch-and-examine Relay Selection Schemementioning

confidence: 99%

“…In [11], a centralized relay selection scheme is employed in the downlink of a cellular network. The base station uses the feedback to get the channel gain of every link.…”

Section: Introductionmentioning

confidence: 99%

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The Improvement of Relay Selection Schemes in Two-Hop Cellular Networks

Wu¹

2017

IJCNS

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In wireless networks, cooperative relaying could improve throughput by exploiting diversity. In order to reduce the amount of feedback for the channel gain, a semi-distributed scheme based on the relay feasible condition is proposed. Each relay node can measure its backward and forward channel gains. If both the channel gains are larger than a pre-defined threshold, this relay node is feasible. The final decision on the best relay selection is still given by the base station. Besides, the switch-and-examine relay selection scheme, which selects the first feasible relay node, is also investigated. Simulation results are presented to illustrate the advantage of two proposed schemes.

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Section: Simulation Resultsmentioning

confidence: 72%

“…The final relay allocation is made by the source node in centralized manner. Therefore, compared to the scheme in [11], the proposed scheme has stringent constraints on system overhead.…”

Section: The Semi-distributed Relay Selection Schemementioning

confidence: 99%

Section: Capacity Analysis Of the Cellular Network With Cooperative Rmentioning

confidence: 99%

Section: Switch-and-examine Relay Selection Schemementioning

confidence: 99%

“…In [11], a centralized relay selection scheme is employed in the downlink of a cellular network. The base station uses the feedback to get the channel gain of every link.…”

Section: Introductionmentioning

confidence: 99%

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