Two-round relay selection and joint massive MIMO transmission technique to enhance wireless information and power transfer

Wireless Information and Power Transfer (WIPT) technology has recently drawn a great deal of interest. Its ability to convey both data and energy wirelessly to the user terminals prompted her to be a key technology to power the next generation of green wireless communications. However, given the high attenuation of radiofrequency signals across distance on the one hand and the Federal Communications Commission (FCC) rules and regulations regarding safety issues and determining the maximum transmission power, makes the implementation of WIPT poses serious challenges. Over and above, the integration of WIPT with other emerging technologies, i.e., Massive multiple-input, multiple-output (MIMO) system and multi-antenna beamforming technique, raises the need to design new schemes and system architectures to achieve effective integrations. This thesis aims to improve the amount of energy harvested and enhance the system of WIPT by implementing an effective integration with massive MIMO and wireless powered cooperative communication networks (WPCCNs). In the first part of the thesis, we focus on enhancing the throughput and analysing the outage performance of a new WPCCNs system model, where both the single source and the multi-relay have no fixed energy supply. A power-beacon is proposed in the network to assist the source and relays harvest energy from their radio frequency (RF) signals. Two partial relay selection schemes (PRS) and opportunistic relay selection scheme (ORS) are implemented and analysed for the proposed system model, where the best relay selection is picked based on the channel state information availability. The outage probability and the system throughput mathematic equations over different relay selection schemes are derived and confirmed with Monte-Carlo simulations. The numerical results have shown that the performance of ORS relay selection scheme over the two PRS selection schemes in terms of system throughput by 39% compared to PRSII and 19% comp