AF MIMO Relay Systems with Wireless Powered Relay Node and Direct Link
MetadataShow full item record
Funding and Sponsorship
IEEE A two-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay system with direct link is considered in this paper. The relay node has no self-power supply and relies on harvesting the radio frequency energy transferred from the source node to forward information from source to destination. In particular, we consider the time switching (TS) protocol between wireless information and energy transfer. We study the joint optimization of the source and relay precoding matrices and the TS factor to maximize the achievable source-destination rate when a single data stream is transmitted from the source node. The optimal structure of the source and relay precoding matrices is derived, which reduces the original problem to a simpler optimization problem. The simplified problem is then solved efficiently by a two-step method. Numerical simulations show that the proposed algorithm yields a higher rate and better rate-energy tradeoff than suboptimal approaches.
Showing items related by title, author, creator and subject.
Khandaker, Muhammad Ruhul Amin (2012)The increasing demand for mobile applications such as streaming media, software updates, and location-based services involving group communications has prompted the need for wireless communication technologies that can ...
Transceiver Design for AF MIMO Relay Systems with a Power Splitting Based Energy Harvesting Relay NodeLi, Bin ; Zhang, M.; Cao, H.; Rong, Yue ; Han, Z. (2020)In this article, a dual-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay communication system is studied. With a splitting (PS) protocol, the relay node harvests the radio frequency (RF) energy in ...
Joint Transceiver Optimization for DF Multicasting MIMO Relay Systems with Wireless Information and Power TransferWang, S.; He, Z.; Rong, Yue (2021)In this article, we investigate a two-hop decode-and-forward (DF) multicasting multiple-input multiple-output (MIMO) wireless relay communication system. Different to conventional systems, the radio frequency (RF) energy ...