Secure Relay Beamforming in Non-Regenerative Two-Way Relay Cognitive Radio Networks with Energy Harvesting Constraints

DOI

10.2991/icwcsn-16.2017.71How to use a DOI?

Keywords

EH; two-way relay network; CRN; convex optimization

Abstract

In this paper, we consider the problem of nonregenerative two-way secure relay beam forming (SRB) for cognitive radio network (CRN) under the background of the simultaneous wireless information and power transfer (SWIPT). Our objective is to maximize sum rate under the transmit power constraint at the relay, energy harvesting (EH) constraint at the EH device and the interference constraint from secondary user (SU). The formulated problem is a nonconvex problem. We firstly propose a two-dimensional (2D) search scheme which provides an upper bound to the formulated problem; for decreasing the computation complexity, we propose a sequential parametric convex approximation (SPCA) based iteration scheme and obtain a local optimal solution. Simulation results have shown that SPCA based iteration scheme performs almost close to 2D search schemes, and has lower computation complexity.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Feng-Chuang Xing
AU  - Sai Zhao
AU  - Gao-Fei Huang
AU  - Ming-Xia Lv
AU  - Gui-Yun Liu
AU  - Guo-Qi Wang
AU  - Dong Tang
PY  - 2016/12
DA  - 2016/12
TI  - Secure Relay Beamforming in Non-Regenerative Two-Way Relay Cognitive Radio Networks with Energy Harvesting Constraints
BT  - Proceedings of the 3rd International Conference on Wireless Communication and Sensor Networks (WCSN 2016)
PB  - Atlantis Press
SP  - 327
EP  - 333
SN  - 2352-538X
UR  - https://doi.org/10.2991/icwcsn-16.2017.71
DO  - 10.2991/icwcsn-16.2017.71
ID  - Xing2016/12
ER  -