Unpublished conference/Abstract (Scientific congresses, symposiums and conference proceedings)
Sequential Resource Distribution Technique for Multi-User OFDM-SWIPT based Cooperative Networks
GAUTAM, Sumit; LAGUNAS, Eva; CHATZINOTAS, Symeon et al.
2018IEEE Global Communications Conference (IEEE GLOBECOM)
 

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Keywords :
Simultaneous wireless transmission of information and energy; Relay Selection; Resource Allocation
Abstract :
[en] In this paper, we investigate resource allocation and relay selection in a dual-hop orthogonal frequency division multiplexing (OFDM)-based multi-user network where amplify-and-forward (AF) enabled relays facilitate simultaneous wireless information and power transfer (SWIPT) to the end-users. In this context, we address an optimization problem to maximize the end-users’ sum-rate subjected to transmit power and harvested energy constraints. Furthermore, the problem is formulated for both time-switching (TS) and power-splitting (PS) SWIPT schemes.We aim at optimizing the users’ SWIPT splitting factors as well as sub-carrier–destination assignment, sub-carrier pairing, and relay–destination coupling metrics. This kind of joint evaluation is combinatorial in nature with non-linear structure involving mixed-integer programming. In this vein, we propose a sub-optimal low complex sequential resource distribution (SRD) method to solve the aforementioned problem. The performance of the proposed SRD technique is compared with a semi-random resource allocation and relay selection approach. Simulation results reveal the benefits of the proposed design under several parameter values with various operating conditions to illustrate the efficiency of SWIPT schemes for the proposed techniques.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
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)
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 :
no
Language :
English
Title :
Sequential Resource Distribution Technique for Multi-User OFDM-SWIPT based Cooperative Networks
Publication date :
December 2018
Event name :
IEEE Global Communications Conference (IEEE GLOBECOM)
Event place :
Abu Dhabi, United Arab Emirates
Event date :
from 09-12-2018 to 13-12-2018
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
Name of the research project :
INWIP-NET
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 27 July 2018

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