Reference : A Novel Heap-based Pilot Assignment for Full Duplex Cell-Free Massive MIMO with Zero-...

	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering
	Focus Areas :	Security, Reliability and Trust
	To cite this reference:	http://hdl.handle.net/10993/42870

Title :	A Novel Heap-based Pilot Assignment for Full Duplex Cell-Free Massive MIMO with Zero-Forcing
Language :	English
Author, co-author :	Nguyen, Van Hieu []
	Nguyen, van Dinh [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Dobre, Octavia A. []
	Sharma, Shree Krishna [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) > >]
	Shin, Oh-Soon []
Publication date :	7-Jun-2020
Main document title :	IEEE International Conference on Communications
Publisher :	Institute of Electrical and Electronics Engineers (IEEE)
Pages :	1-6
Peer reviewed :	Yes
On invitation :	No
Audience :	International
Country :	NJ
Event name :	IEEE International Conference on Communications
Event date :	7-11 June 2020
Keywords :	[en] Cell-free massive MIMO ; full-duplex radio ; inner approximation
Abstract :	[en] This paper investigates the combined benefits of full-duplex (FD) and cell-free massive multiple-input multipleoutput (CF-mMIMO), where a large number of distributed access points (APs) having FD capability simultaneously serve numerous uplink and downlink user equipments (UEs) on the same time-frequency resources. To enable the incorporation of FD technology in CF-mMIMO systems, we propose a novel heapbased pilot assignment algorithm, which not only can mitigate the effects of pilot contamination but also reduce the involved computational complexity. Then, we formulate a robust design problem for spectral efficiency (SE) maximization in which the power control and AP-UE association are jointly optimized, resulting in a difficult mixed-integer nonconvex programming. To solve this problem, we derive a more tractable problem before developing a very simple iterative algorithm based on inner approximation method with polynomial computational complexity. Numerical results show that our proposed methods with realistic parameters significantly outperform the existing approaches in terms of the quality of channel estimate and SE.
Research centres :	Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Funders :	ERC and FNR
Name of the research project :	ERC
Target :	Researchers ; Professionals ; Students ; General public ; Others
Permalink :	http://hdl.handle.net/10993/42870
Framework Programme / European Project :	H2020 ; 742648 - AGNOSTIC - Actively Enhanced Cognition based Framework for Design of Complex Systems
FnR project :	FnR ; FNR11306457 > Christos Tsinos > ECLECTIC > Energy and Complexity Efficient Millimiter-wave Large-Aray Communications > 01/05/2017 > 30/04/2020 > 2016

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	Fulltext file(s): File Commentary Version Size Access Open access IEEE ICC 2020- FD CFmMIMO.pdf Author preprint 2.1 MB View/Open

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