Voice Communications over IEEE 802.11 Wireless LANs Interconnected Using ATM Links

Authors:
Eustathia Ziouva;Theodore Antonakopoulos
Affiliations:
-;-
Venue:
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
Year:
2001

Citing 4
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Abstract

This paper presents a new polling scheme, that an beused at the Access Point of an IEEE802.11 wirelessnetwork as part of the Point Coordination Function, inorder to provide guaranteed QoS support of voice traffic.The so called Cyclic Shift polling scheme along with theuse of silence detection at the mobile terminals increasesthe supported number of calls, as a function of the overallrate of dropped voice packets and the Point CoordinationFuc tion repetition interval. The advantages of utilizingthis polling scheme are demonstrated by using the voicedelay and voice jitter distributions. The delay and jitterdistributions confirm that the voice packet delayintroduced by the wireless network can be less than 25 mseven in the case of stations of different wireless networkswhen the IEEE802.11 LANs are interconnected via ATMinfra-structure.