NDLI: Achievable Transmission Capacity of Relay-Assisted Device-to-Device (D2D) Communication Underlay Cellular Networks

Content Provider	IEEE Xplore Digital Library
Author	Si Wen Xiaoyue Zhu Yanchao Lin Zhesheng Lin Xin Zhang Dacheng Yang
Copyright Year	2013
Description	Author affiliation: Wireless Theor. & Technol. Lab. (WT&T), Beijing Univ. of Posts & Telecommun., Beijing, China (Si Wen; Xiaoyue Zhu; Yanchao Lin; Zhesheng Lin; Xin Zhang; Dacheng Yang)
Abstract	Device-to-Device (D2D) communication is considered to be a promising resource reuse technology for local users, which can support high-speed and power- saving services. However, when D2D users are far away from each other or the quality of D2D channel is not good enough for direct communication, transmission via a direct link is not a good choice. In this paper, we focus on the performance of relay assisted D2D network. Unlike the previous works that mainly study practical relay selection algorithm, we analyze the achievable transmission capacity of multi-hop D2D system over Rayleigh fading channels. First, by using stochastic geometry, the probability distribution of end-to-end signal-to-interference- plus-noise ratio (SINR) in the spectrum sharing network is formulated. Then the achievable transmission capacity is modeled as an optimization problem with constraints that guarantee the outage probability of both cellular and D2D systems. Finally the optimal design of D2D spatial density and transmit power is analyzed and the achievable transmission capacity of multi-hop D2D system is given in closed-form expression. Numerical results show the performance of the D2D network can be effectively enhanced by relay-assisted transmission. We also verify the optimal design of D2D parameters and evaluate the influence of the number of relay hops on the system capacity and power efficiency.
Starting Page	1
Ending Page	5
File Size	253468
Page Count	5
File Format	PDF
ISBN	9781467361873
ISSN	10903038
DOI	10.1109/VTCFall.2013.6692074
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Interference Receivers Signal to noise ratio Transmitters Fading Capacity planning
Content Type	Text
Resource Type	Article

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