Final_Version.pdf (646.71 kB)
Download file

Multicarrier Relay Selection for Full-Duplex Relay-Assisted OFDM D2D Systems

Download (646.71 kB)
journal contribution
posted on 01.06.2018, 15:23 by Shuping Dang, Gaojie Chen, Justin Porter Coon
In this paper, we propose a full-duplex orthogonal frequency-division multiplexing (OFDM) device-to-device (D2D) system in two-hop networks, where multiple full-duplex decode-and-forward (DF) relays assist the transmission from D2D user equipment (DUE) transmitter to DUE receiver. By such a transmission mechanism, the signal transmitted by the DUE transmitter does not need to go through a base station (BS). Meanwhile, due to the adoption of underlay D2D communication protocol, power control mechanisms are thereby necessary to be applied to mitigate the interference to conventional cellular communications. Based on these considerations, we analyze the outage performance of the proposed system, and derive the exact expressions of outage probabilities when bulk and per-subcarrier relay selection criteria are applied. Furthermore, closed-form expressions of outage probabilities are also obtained for special cases when the instantaneous channel state information (CSI) between BS and cellular user equipments (CUEs) is not accessible, so that a static power control mechanism is applied. Subsequently, we also investigate the outage performance optimization problem by coordinating transmit power among DUE transmitter and relays, and provide a suboptimal solution, which is capable of improving the outage performance. All analyses are substantiated by numerical results provided by Monte Carlo simulations. The analytical and numerical results demonstrated in this paper can provide an insight into the full-duplex relay-assisted OFDM D2D systems, and serve as a guideline for its implementation in next generation networks.

Funding

This work was supported by the SEN grant (EPSRC grant number EP/N002350/1) and the grant from China Scholarship Council (No. 201508060323).

History

Citation

IEEE Transactions on Vehicular Technology, 2018

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

AM (Accepted Manuscript)

Published in

IEEE Transactions on Vehicular Technology

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

issn

0018-9545

Copyright date

2018

Available date

23/10/2018

Publisher version

https://ieeexplore.ieee.org/document/8344837/

Notes

The file associated with this record is under embargo until 6 months after publication, in accordance with the publisher's self-archiving policy. The full text may be available through the publisher links provided above.

Language

en