Secure Relay Beamforming in Non-Regenerative Two-Way Relay Cognitive Radio Networks with Energy Harvesting Constraints
Feng-Chuang Xing, Sai Zhao, Gao-Fei Huang, Ming-Xia Lv, Gui-Yun Liu, Guo-Qi Wang, Dong Tang
Available Online December 2016.
- https://doi.org/10.2991/icwcsn-16.2017.71How to use a DOI?
- EH; two-way relay network; CRN; convex optimization
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 PB - Atlantis Press SP - 327 EP - 333 SN - 2352-538X UR - https://doi.org/10.2991/icwcsn-16.2017.71 DO - https://doi.org/10.2991/icwcsn-16.2017.71 ID - Xing2016/12 ER -