Resource allocation for licensed/unlicensed carrier aggregation MIMO systems

Christos G. Tsinos, Fotis Foukalas, Theodoros A. Tsiftsis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper a novel Carrier Aggregation (CA) scheme is proposed for downlink MIMO LTE-A Systems. The proposed approach achieves increased transmission rates by establishing the communication links via both licensed and unlicensed bands without generating or experiencing interference to/from the users of the latter bands. To that end, a rate optimization problem is defined and solved subject to the previous zero interference constraints, a total power constraint and a maximum number of aggregated bands constraint. It turns out that the previous problem is a Mixed Integer Non Linear Programming (MINLP) one that requires an exhaustive search procedure in order to be solved. To tackle this, an optimal low complexity method is proposed based on the Lagrange dual decomposition. The performance of the original (MINLP) and the low-complexity proposed techniques is verified via indicative simulations.

Original languageEnglish
Title of host publication2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467398145
DOIs
Publication statusPublished - Sep 12 2016
Event2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar
Duration: Apr 3 2016Apr 7 2016

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2016-September
ISSN (Print)1525-3511

Other

Other2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
CountryQatar
CityDoha
Period4/3/164/7/16

Keywords

  • Carrier Aggregation
  • Carrier Selection
  • Interference Nulling
  • LTE-A
  • MIMO
  • Resource Allocation
  • Unlicensed Transmission

ASJC Scopus subject areas

  • Engineering(all)

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