Using a Greedy Algorithm for Link Adaptation in MIMO Wireless Networks

Author

Feukeu, EA ; Djouani, K. ; Kurien, A.

Author_Institution

French South African Inst. of Technol. (F´´SATI), Tshwane Univ. of Technol., Pretoria, South Africa

fYear

2011

fDate

13-15 Sept. 2011

Firstpage

1

Lastpage

7

Abstract

This paper presents a Link Adaptation (LA) algorithm for Wireless Local Area Network (WLAN) IEEE 802.11n Multiple Input Multiple Output (MIMO) systems to solve the problem of wireless channel fluctuation that affect the propagation of radio signals between a transmitter and receiver. The proposed Greedy Algorithm (GA) will modify the modulation constellation size and code rate in response to the variation of the transmission medium. This Algorithm compared with the Auto-Rate-Fallback (ARF) algorithm performs better than the ARF approach in terms of throughput, packed loss, elapsed time and transmission efficiency.

Keywords

MIMO communication; greedy algorithms; wireless LAN; IEEE 802.11n multiple input multiple output system; MIMO wireless networks; auto-rate-fallback algorithm; code rate; greedy algorithm; link adaptation algorithm; modulation constellation size; radio signal propagation; transmission efficiency; transmission medium; wireless channel fluctuation; wireless local area network; IEEE 802.11n Standard; MIMO; Modulation; Receivers; Signal to noise ratio; Throughput; Wireless LAN; IEEE 802.11n; MIMO; WLAN;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2011

Conference_Location

Livingstone

ISSN

2153-0025

Print_ISBN

978-1-61284-992-8

Type

conf

DOI

10.1109/AFRCON.2011.6071971

Filename

6071971