eprintid: 2489
rev_number: 7
eprint_status: archive
userid: 12
dir: disk0/00/00/24/89
datestamp: 2017-06-09 11:27:50
lastmod: 2017-06-09 11:27:50
status_changed: 2017-06-09 11:27:50
type: conference_item
metadata_visibility: show
creators_name: Vu, Xuan Thang
creators_name: Trinh, Anh Vu
creators_name: Chatzinotas, Symeon
creators_name: Ottersten, Björn
creators_id: thangvx85@gmail.com
creators_id: vuta@vnu.edu.vn
creators_id: Chatzinotas@gmail.com
creators_id: Ottersten@gmail.com
title: Spectral-Efficient Model for Multiuser Massive MIMO: Exploiting User Velocity
ispublished: pub
subjects: Communications
divisions: fac_fet
abstract: The employment of a massive number of antennas
in multiple-input multiple-output systems, known as massive MIMO, has drawn a new horizon for future communications systems to support a very large number of users. However, the actual number of active users in massive MIMO are limited by pilots training via the coherence time of the communication channel which is inversely proportional to the user velocity. The
current model applies this coherence time for every user to design multiuser massive MIMO, which might result in a suboptimal solution since the users usually move at different speeds in practice. In this paper, we investigate multiuser massive MIMO by taking into consideration the differences in user velocities.
In particular, two multiuser models are proposed to maximize the per-user spectral efficiency and the number of served users, respectively. System capacity of the proposed models is provided in analytical expression. Finally, numerical results demonstrate the advantages of our proposed models compared with the reference model.
date: 2017-05-21
date_type: published
official_url: http://icc2017.ieee-icc.org
full_text_status: public
pres_type: lecture
pagerange: 1-6
event_title: IEEE international Conference on Communications
event_location: Paris, France
event_dates: May, 21-25
event_type: conference
refereed: TRUE
citation:   Vu, Xuan Thang and Trinh, Anh Vu and Chatzinotas, Symeon and Ottersten, Björn  (2017) Spectral-Efficient Model for Multiuser Massive MIMO: Exploiting User Velocity.  In: IEEE international Conference on Communications, May, 21-25, Paris, France.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2489/1/ICC2017.pdf