Unpublished conference/Abstract (Scientific congresses, symposiums and conference proceedings)
Pricing Perspective for SWIPT in OFDM-based Multi-User Wireless Cooperative Systems
Gautam, Sumit; Lagunas, Eva; Vuppala, Satyanarayana et al.
20192019 IEEE Wireless Communications and Networking Conference (WCNC)
 

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Keywords :
Simultaneous wireless transmission of information and energy; Relay Selection; Resource Allocation
Abstract :
[en] We propose a novel formulation for joint maximization of total weighted sum-spectral efficiency and weighted sum-harvested energy to study Simultaneous Wireless Information and Power Transfer (SWIPT) from a pricing perspective. Specifically, we consider that a transmit source communicates with multiple destinations using Orthogonal Frequency Division Multiplexing (OFDM) system within a dual-hop relay-assisted network, where the destination nodes are capable of jointly decoding information and harvesting energy from the same radio-frequency (RF) signal using either the time-switching (TS) or power-splitting (PS) based SWIPT receiver architectures. Computation of the optimal solution for the aforementioned problem is an extremely challenging task as joint optimization of several network resources introduce intractability at high numeric values of relays, destination nodes and OFDM sub-carriers. Therefore, we present a suitable algorithm with sub-optimal results and good performance to compute the performance of joint data processing and harvesting energy under fixed pricing methods by adjusting the respective weight factors, motivated by practical statistics. Furthermore, by exploiting the binary options of the weights, we show that the proposed formulation can be regulated purely as a sum-spectral efficiency maximization or solely as a sum-harvested energy maximization problem. Numerical results illustrate the benefits of the proposed design under several operating conditions and parameter values.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Gautam, Sumit ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Lagunas, Eva  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Vuppala, Satyanarayana ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) ; United Technologies Research Center
Chatzinotas, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
Pricing Perspective for SWIPT in OFDM-based Multi-User Wireless Cooperative Systems
Publication date :
April 2019
Number of pages :
7
Event name :
2019 IEEE Wireless Communications and Networking Conference (WCNC)
Event place :
Marrakech, Morocco
Event date :
from 15-04-2019 to 18-04-2019
Audience :
International
Focus Area :
Security, Reliability and Trust
FnR Project :
FNR11037543 - Integrated Wireless Information And Power Networks, 2015 (01/10/2016-30/09/2020) - Bjorn Ottersten
Available on ORBilu :
since 04 February 2019

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