Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems

Sinh Le Hong Nguyen, Tho Le-Ngoc, Ali Ghrayeb

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

Abstract

We consder a correlated muluser (MU) massive mulple-input mulple-output (MIMO) downlink channel n which many heterogeneous users have derent channel qualies (e., dierent path-oses) to a base staton (BS) equipped wih a arge antenna array. Ung he theory of extreme values of regularly varying functions, we characterize the scaling laws of he achievable sum-rate of the sysem, when both numbers of BS antennas and users grow arge. We then prove that for a large number of users, a simple uer schedulng that chooses the uers wih the largest insantaneous channel vector norms based on the global channel sate informaton (CSI) can significanty mprove he achievable sysem sum-rate. Finally, since he schedulng method needs the global CSI esmate to operate, we propose an efficient algorithm based on ow-rank matrix approximaton o esmate the global CSI wh a moderate number of trainng signals. Analyss and numerical simulatons show hat the proposed scheme provides favourable results in terms of system sum-rate performance and computatonal complexity.

Original languageEnglish
Title of host publication20th European Wireless Conference, EW 2014
PublisherVDE VERLAG GMBH
Pages213-218
Number of pages6
ISBN (Electronic)9783800736218
Publication statusPublished - 2014
Event20th European Wireless Conference, EW 2014 - Barcelona, Spain
Duration: 14 May 201416 May 2014

Other

Other20th European Wireless Conference, EW 2014
CountrySpain
CityBarcelona
Period14/5/1416/5/14

Fingerprint

Scaling laws
Antenna arrays
Antennas
scaling
Law
performance

Keywords

  • Channel esimaton
  • Low-ank approximaton
  • Massive MIMO
  • Regularly varying
  • User schedulng

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Le Hong Nguyen, S., Le-Ngoc, T., & Ghrayeb, A. (2014). Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems. In 20th European Wireless Conference, EW 2014 (pp. 213-218). VDE VERLAG GMBH.

Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems. / Le Hong Nguyen, Sinh; Le-Ngoc, Tho; Ghrayeb, Ali.

20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, 2014. p. 213-218.

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

Le Hong Nguyen, S, Le-Ngoc, T & Ghrayeb, A 2014, Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems. in 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, pp. 213-218, 20th European Wireless Conference, EW 2014, Barcelona, Spain, 14/5/14.
Le Hong Nguyen S, Le-Ngoc T, Ghrayeb A. Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems. In 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH. 2014. p. 213-218
Le Hong Nguyen, Sinh ; Le-Ngoc, Tho ; Ghrayeb, Ali. / Robust channel esimaton and schedulng for heterogeneous muluser masve MIMO sysems. 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, 2014. pp. 213-218
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