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http://dx.doi.org/10.3745/KTCCS.2021.10.6.173

A New Incentive Based Bandwidth Allocation Scheme For Cooperative Non-Orthogonal Multiple Access  

Kim, Jong Won (서강대학교 컴퓨터공학과)
Kim, Sung Wook (서강대학교 컴퓨터공학과)
Publication Information
KIPS Transactions on Computer and Communication Systems / v.10, no.6, 2021 , pp. 173-180 More about this Journal
Abstract
Non Orthogonal Multiple Access (NOMA) is a technology to guarantee the explosively increased Quality of Service(QoS) of users in 5G networks. NOMA can remove the frequent orthogonality in Orthogonal Multiple Access (OMA) while allocating the power differentially to classify user signals. NOMA can guarantee higher communication speed than OMA. However, the NOMA has one disadvantage; it consumes a more energy power when the distance increases. To solve this problem, relay nodes are employed to implement the cooperative NOMA control idea. In a cooperative NOMA network, relay node participations for cooperative communications are essential. In this paper, a new bandwidth allocation scheme is proposed for cooperative NOMA platform. By employing the idea of Vickrey-Clarke-Groves (VCG) mechanism, the proposed scheme can effectively prevent selfishly actions of relay nodes in the cooperative NOMA network. Especially, base stations can pay incentives to relay nodes as much as the contributes of relay nodes. Therefore, the proposed scheme can control the selfish behavior of relay nodes to improve the overall system performance.
Keywords
Non Orthogonal Multiple Access; Cooperative NOMA; Mechanism Design;
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