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Energy and spectrum efficient resource allocation in two-tier networks: A multiobjective approach
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.ORCID iD: 0000-0003-4006-5848
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
2017 (English)In: 2017 IEEE Wireless Communications and Networking Conference, WCNC 2017, IEEE, 2017, article id 7925663Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we investigate the joint power and channel allocation problem in two-tier OFDMA femtocell networks using a multiobjective approach with focus on energy efficiency. Three main objectives are considered in our problem formulations namely, energy efficiency, spectral efficiency, and power consumption. To solve the muliobjective problems, we have utilized a non- dominated sorting genetic algorithm (NSGA-II) and an algorithm have been proposed to perform the resource allocation procedures. In this investigation, to preserve the quality service of users, we have applied a minimum data rate threshold for all users. Furthermore, we impose an interference threshold limit on each subchannel to protect the macrocell user quality of service. Finally, the simulation results figure out that we can achieve 30% better energy efficiency by trading the throughput by about 20%.

Place, publisher, year, edition, pages
IEEE, 2017. article id 7925663
Series
IEEE Wireless Communications and Networking Conference, WCNC, ISSN 1525-3511
National Category
Engineering and Technology Electrical Engineering, Electronic Engineering, Information Engineering Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-205203DOI: 10.1109/WCNC.2017.7925663ISI: 000403137600183Scopus ID: 2-s2.0-85019655543ISBN: 9781509041831 (print)OAI: oai:DiVA.org:kth-205203DiVA, id: diva2:1087651
Conference
2017 IEEE Wireless Communications and Networking Conference, WCNC 2017, San Francisco, United States, 19 March 2017 through 22 March 2017
Note

QC 20170410

Available from: 2017-04-09 Created: 2017-04-09 Last updated: 2017-07-03Bibliographically approved

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fulltext(205 kB)75 downloads
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Publisher's full textScopushttp://wcnc2017.ieee-wcnc.org/

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