Improving QoS and throughput in single- and multihop WLANs through dynamic traffic prioritization

Author

Iera, Antonio ; Molinaro, Antonella ; Ruggeri, Giuseppe ; Tripodi, Domenico

Author_Institution

Univ. Mediterranea di Reggio Calabria, Italy

Volume

19

Issue

4

fYear

2005

Firstpage

35

Lastpage

44

Abstract

Nowadays, research efforts are being put into the design of effective mechanisms to provide service quality differentiation in IEEE 802.11-based wireless LANs. In this article we analyze the effects of augmenting the contention-based channel access mechanism of IEEE 802.11e through the assignment of dynamic traffic priorities, that adapt to either the application´s quality requirements or the network congestion status. The aim is to show the effectiveness and robustness of the proposed dynamic mechanism in a wireless ad hoc network, in both single-hop and multihop scenarios, under variable traffic and network load conditions.

Keywords

DiffServ networks; ad hoc networks; quality of service; telecommunication traffic; wireless LAN; QoS; application quality requirements; contention-based channel access mechanism; dynamic traffic prioritization; multihop WLAN; network congestion status; network load conditions; quality of service; service quality differentiation; single-hop WLAN; wireless ad hoc network; wireless local area network; Delay effects; Media Access Protocol; Mobile ad hoc networks; Quality of service; Robustness; Spread spectrum communication; Telecommunication traffic; Throughput; Wireless LAN; Wireless networks;

fLanguage

English

Journal_Title

Network, IEEE

Publisher

ieee

ISSN

0890-8044

Type

jour

DOI

10.1109/MNET.2005.1470681

Filename

1470681