A coordination layer to handle real-time communication in Wi-Fi networks with uncontrolled traffic sources

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Robson Costa (Author) Other; Paulo Portugal (Author) FEUP; Francisco Vasques (Author) FEUP; Ricardo Moraes (Author) Other; Ricardo Felipe Custódio (Author) Other

Conference proceedings International

Title: 2011 IEEE 36TH CONFERENCE ON LOCAL COMPUTER NETWORKS (LCN)

Pages: 263-266

36th Annual IEEE Conference on Local Computer Networks (LCN)

Bonn, GERMANY, OCT 04-07, 2011

Indexing

ISI Proceedings

ISI Web of Knowledge - 9 Citations

Scopus - 11 Citations

INSPEC

Other information

Authenticus ID: P-002-WTR

DOI: 10.1109/lcn.2011.6115204

Abstract (EN): In this paper we propose the use of a coordination layer to handle real-time communication in infrastructured WiFi networks. This layer combines a TDMA scheme with a traffic separation mechanism (FCR MAC), which enables the prioritization of real-time (RT) traffic over uncontrolled (external) traffic sources. The target of this paper is to assess the behavior of this coordination layer when supporting RT communication and to compare these results with those obtained with IEEE 802.11e EDCA. The simulation assessment considers an open communication environment, where a set of RT and non-RT stations share the same coverage area and frequency band. A realistic error-prone channel was used to measure the impact of interferences against an error-free channel. We show that the proposed solution offers a significant improvement when compared with EDCA, in what concerns average deadline losses and delay.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4