A Threshold-Selective Multiuser Downlink MAC Scheme for 802.11n Wireless Networks

Author

Kartsakli, Elli ; Zorba, Nizar ; Alonso, Luis ; Verikoukis, Christos

Author_Institution

Signal Theor. & Commun. Dept, Univ. Politec. de Catalunya, Barcelona, Spain

fYear

2010

fDate

23-27 May 2010

Firstpage

1

Lastpage

5

Abstract

The recently approved 802.11n standard establishes the integration of MIMO technology in WLANs with the goal of achieving high data rates. However, it does not exploit the multiuser capabilities of the MIMO channel. In this paper we present a multiuser downlink transmission scheme that combines low-complexity beamforming at the Physical layer with an opportunistic channel-aware MAC scheduling policy. A mathematical model for the throughput calculation of the proposed scheme is presented and validated through link-layer simulation results.

Keywords

MIMO communication; wireless LAN; 802.11 wireless networks; MIMO channel; low-complexity beamforming; multiuser downlink transmission scheme; opportunistic channel-aware MAC scheduling policy; physical layer; threshold-selective multiuser downlink MAC scheme; Array signal processing; Communications Society; Downlink; MIMO; Physical layer; Signal processing algorithms; Sprites (computer); Telecommunications; Throughput; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (ICC), 2010 IEEE International Conference on

Conference_Location

Cape Town

ISSN

1550-3607

Print_ISBN

978-1-4244-6402-9

Type

conf

DOI

10.1109/ICC.2010.5502636

Filename

5502636