Paper Info
Title
Energy-efficient alternating current computing-enabled receiver design for K-user interference channel simultaneous wireless information and power transfer networks
Abstract
Energy efficiency is one of the key challenges in fifth generation (5G) and beyond wireless communication systems. Recently, simultaneous wireless information and power transfer (SWIPT) systems are usually adopted to enhance energy efficiency. The harvested energy through power transfer is first rectified to generate the direct current (DC) voltage that is used to power the communication devices. This rectification reduces the energy efficiency due to losses in conversion to DC voltages. In this work, we consider integrated information decoding and energy harvesting receiver architecture through power splitting SWIPT network that enables alternating current (AC) computational logic. The AC computing method is used to supply the computing block of receivers to further enhance the energy efficiency. Multiuser multiple input single output (MISO) interference channel (IC) is considered, where receivers are required to compromise between quality of service (QoS) and energy consumption. The system sum rate is maximized under sum harvested energy and total transmit power constraints through joint beamforming and power splitting factors design. For the problem tractability in the proposed AC computing-enabled receiver, standard beamforming schemes are deployed, namely, zero forcing (ZF), regularized zero forcing (RZF), maximum ratio transmission (MRT), and a hybrid scheme between MRT and ZF beamforming (MRT-ZF). Moreover, the power splitting ratios design problem is transformed into a one dimension search problem. Simulation results show that different beamforming designs exhibit a great trade-off between the achieved rate and the harvested energy.
Year
DOI
Venue
2022
10.1002/dac.5177
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
Keywords
DocType
Volume
beamforming, energy harvesting, interference channel, multiple input single output, power splitting, SWIPT networks
Journal
35
Issue
ISSN
Citations 
11
1074-5351
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Eman Sadik100.34
Mona Shokair200.34
Maha Elsabrouty300.34
Ahmed M. Benaya400.68