NDLI: Multi-phase Device-to-Device relay algorithms for data dissemination in a cluster

Content Provider	IEEE Xplore Digital Library
Author	Junyi Wang Zhishuai Gong Yanheng Wei
Copyright Year	2014
Description	Author affiliation: Key Lab. of Cognitive Radio & Inf. Process., Guilin Univ. of Electron. Technol., Guilin, China (Zhishuai Gong; Yanheng Wei) \|\| Guangxi Exp. Center of Inf. Sci., Guilin Univ. of Electron. Technol., Guilin, China (Junyi Wang)
Abstract	In cellular networks, Device-to-Device (D2D) links can be utilized for data dissemination via unicast or/and multicast within a cluster. For traditional D2D relay schemes, D2D links with poor channel conditions may be the bottleneck and result in conservative resource utilization. Therefore, we suggest preferentially selecting the good quality D2D links with high achievable data rates, which induces multi-phase transmissions. Such selective transmissions require us to pre-define a data rate threshold. Obviously, a larger threshold leads to more phases, which is harmful to efficient resource utilization. Hence, there is a tradeoff in selecting the data rate threshold. In the paper, we gradually design three rules to set the threshold and accordingly propose three D2D relay schemes, which can adaptively select the optimal relays, routing and number of phases according to the D2D links quality and our pre-defined thresholds. Simulation results show that our proposed schemes, in turn, yield ascending gains in terms of resource utilization and the best of them achieves a significant resource efficiency compared to the existing single-phase schemes.
Sponsorship	IEEE Commun. Soc.
Starting Page	201
Ending Page	205
File Size	294982
Page Count	5
File Format	PDF
ISBN	9781479951390
e-ISBN	9781479951413
DOI	10.1109/ICT.2014.6845108
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-04
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Fading resource efficiency Unicast Transmitters data dissemination Ad hoc networks Resource management Relays Device-to-Device Cellular network
Content Type	Text
Resource Type	Article

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