On the Capacity of Wireless Powered Cognitive Relay Network with Interference Alignment
Information Theory
2018-03-12 v1 math.IT
Abstract
In this paper, a two-hop decode-and-forward cognitive radio system with deployed interference alignment is considered. The relay node is energy-constrained and scavenges the energy from the interference signals. In the literature, there are two main energy harvesting protocols, namely, time-switching relaying and power-splitting relaying. We first demonstrate how to design the beamforming matrices for the considered primary and secondary networks. Then, the system capacity under perfect and imperfect channel state information scenarios, considering different portions of time-switching and power-splitting protocols, is estimated.
Cite
@article{arxiv.1712.04747,
title = {On the Capacity of Wireless Powered Cognitive Relay Network with Interference Alignment},
author = {Sultangali Arzykulov and Galymzhan Nauryzbayev and Theodoros A. Tsiftsis and Mohamed Abdallah},
journal= {arXiv preprint arXiv:1712.04747},
year = {2018}
}
Comments
14 pages, 4 figures, To appear in IEEE Global Communications Conference 2017, Singapore, December 2017