QoS-Aware Energy Storage Maximization in the RIS-aided Joint-SWIPT-MEC System

This letter addresses the energy storage maximization issue in the typical wireless networks aided by reconfigurable intelligent surface (RIS), where the joint simultaneous wireless information and power transfer (SWIPT) and mobile edge computing (MEC) are further exploited in a collaborative manner...

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Bibliographic Details
Published in:IEEE communications letters 2023-12, Vol.27 (12), p.1-1
Main Authors: Bian, Mengqi, Shi, Yunmei, Huang, Yi, Tang, Xiao-Wei
Format: Article
Language:English
Subjects:
Algorithms
Central Processing Unit
Computation offloading
Delays
Edge computing
Energy harvesting
Energy storage
Maximization
MEC
Mobile computing
Optimization
Power transfer
QoS
Quality of service
RIS
Simultaneous wireless information and power transfer
SWIPT
Task analysis
Wireless networks
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Summary:This letter addresses the energy storage maximization issue in the typical wireless networks aided by reconfigurable intelligent surface (RIS), where the joint simultaneous wireless information and power transfer (SWIPT) and mobile edge computing (MEC) are further exploited in a collaborative manner. In particular, by taking energy harvesting and task offloading into account simultaneously, the RIS reflection coefficients and task allocation strategy are optimized jointly subject to quality of service (QoS) constraints. To tackle the non-convex problem, a practical block coordinate descent (BCD) based alternating optimization algorithm is proposed to obtain a near-optimal solution. Numerical results verify that the proposed RIS-aided joint-SWIPT-MEC scheme outperforms other algorithms.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2023.3324716