Abstract
This paper considers energy-harvesting (EH) enabled networks, which serve more users by a lesser number of transmit antennas. By transmitting energy and information over different fractions of a time-slot, it employs conjugate beamforming (match filtering) to amplify the power of received signals for EH and regularized zero-forcing (RZF) beamforming to suppress the multi-user interference for information decoding (ID), maintaining the computational efficiency in the beamforming design. The problem of max-min users' information throughput optimization subject to EH constraints is addressed by a path-following algorithm, which solves a simple convex quadratic problem at each iteration to generate a better feasible point. A similar optimization problem for the simultaneous wireless information and power transfer (SWIPT) is also addressed. The provided simulations show the advantage of the former over the latter.
| Original language | English |
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| Title of host publication | ICCE 2020 - 2020 IEEE 8th International Conference on Communications and Electronics |
| Editors | Saewoong Bahk, Phuoc Tran-Gia, Jan Van der Spiegel, Nguyen Xuan Quynh |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 51-56 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728154701 |
| DOIs | |
| State | Published - 13 Jan 2021 |
Publication series
| Name | ICCE 2020 - 2020 IEEE 8th International Conference on Communications and Electronics |
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Bibliographical note
Publisher Copyright:© 2021 IEEE.
Keywords
- Multi-user system
- conjugate beamforming
- multi-user interference
- nonconvex optimization
- regularized zero-forcing beamforming
- wireless information and energy transfer
ASJC Scopus subject areas
- Computer Networks and Communications
- Signal Processing
- Electrical and Electronic Engineering
- Instrumentation