A TDMA-based mechanism for real-time communication in IEEE 802.11e networks

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

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

Conference proceedings International

Title: 2010 IEEE CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA)

Pages: 1-9

15th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)

Bilbao, SPAIN, SEP 13-16, 2010

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 26 Citations

INSPEC

Other information

Authenticus ID: P-003-D9T

DOI: 10.1109/etfa.2010.5641340

Abstract (EN): In this paper, we propose a TDMA-based communication approach to be used upon the EDCA communication mechanism defined in the IEEE 802.11e standard. This approach allows the coexistence of realtime (RT) traffic together with uncontrolled (external) traffic sources. In the context of this paper, RT traffic means small sized packets generated in periodic intervals, which must be delivered before the end of the message stream period. The target of this paper is to highlight some limitations of the EDCA mechanism when supporting RT communication and to compare these results with those obtained with the proposed TDMA approach. We have assessed these two mechanisms considering an open communication environment, where there are RT and non-RT stations operating in the same frequency band. Furthermore, a realistic error-prone model channel was used to measure the impact of interferences against an error-free channel. We show that the proposed TDMA approach offers an almost constant access delay and it also improves the EDCA behavior in what concerns the average functional throughput and the average deadline losses.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9