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Resource Management for an Integrated OFDMA Cellular System with MC-CDMA Based D2D Communications

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publicationProceedings of 2018 15th International Symposium on Wireless Communication Systems (ISWCS)
PublisherIEEE
Number of pages6
ISBN (Electronic)978-1-5386-5005-9
DOIs
Publication statusPublished - 28 Aug 2018
Publication typeA4 Article in a conference publication
EventInternational Symposium on Wireless Communication Systems -
Duration: 28 Aug 201831 Aug 2018

Publication series

Name
ISSN (Electronic)2154-0225

Conference

ConferenceInternational Symposium on Wireless Communication Systems
Period28/08/1831/08/18

Abstract

Integration of device-to-device communications (D2D) into cellular networks improves the efficiency and flexibility of the overall system. Besides, D2D can provide partial solutions for some of the inherent problems of cellular systems, such as performance enhancement at cell edges. Similar to cellular systems, interference management is one of the key issues since it greatly affects the system performance. In this paper, we propose a novel and practical resource scheduling scheme for the integrated system. In such a system, multicarrier code division multiple access (MC-CDMA) is used as the multiple access scheme for D2D user equipment (UEs), while orthogonal frequency division multiple access (OFDMA) is used for cellular UEs. The basic idea is to eliminate interference between UEs using different domains (mainly frequency, code and power domains). Furthermore, the combination of resource management, power control, and frequency domain spreading (wideband transmission) leads to an efficient way to realize incell resource reuse between different modes of UEs. Network simulations show that critical interference between different modes of UEs can be well eliminated, while the general SINR performance is acceptable. Spectrum efficiency is improved as well. The proposed scheme provides a simple and practical solution for the integrated system. From both the SINR performance and latency points of view, the solution is robust and promising

Keywords

  • cellular radio;code division multiple access;frequency division multiple access;interference suppression;mobility management (mobile radio);OFDM modulation;power control;radiofrequency interference;resource allocation;telecommunication control;resource management;integrated OFDMA cellular system;MC-CDMA;D2D Communications;device-to-device communications;cellular networks;efficiency;flexibility;cellular systems;performance enhancement;interference management;system performance;practical resource scheduling scheme;integrated system;multicarrier code division multiple access;multiple access scheme;D2D user equipment;orthogonal frequency division multiple access;cellular UEs;power domains;frequency domain;incell resource reuse;general SINR performance;Device-to-device communication;Interference;Resource management;Multicarrier code division multiple access;Signal to noise ratio;Receivers;Wireless communication;D2D;MC-CDMA;OFDMA;cross mode inter-cell interference (CMICI)

Publication forum classification