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VoIP over WLAN: Voice capacity, admission control, QoS, and MAC (2006)
| Citations: | 10 - 0 self |
BibTeX
@MISC{Cai06voipover,
author = {Lin Cai and Yang Xiao and Xuemin (Sherman) Shen and Lin Cai and Jon W. Mark},
title = { VoIP over WLAN: Voice capacity, admission control, QoS, and MAC},
year = {2006}
}
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Abstract
Voice over Internet Protocol (VoIP) is one of the fastest growing Internet applications. It is a viable alternative to the traditional telephony systems due to its high resource utilization and cost efficiency. Meanwhile, Wireless Local Area Networks (WLANs) have become a ubiquitous networking technology that has been deployed around the world. Driven by these two popular technologies, Voice over WLAN (VoWLAN) has been emerging as an infrastructure to provide low-cost wireless voice services. However, VoWLAN poses significant challenges since the performance characteristics of wireless networks are much worse than that of their wireline counterparts, and the IEEE 802.11-based WLAN was not originally designed to support delay-sensitive voice traffic. In this paper, we provide a survey of recent advances in VoWLAN voice capacity analysis, call admission schemes, and medium access control (MAC) layer quality of service (QoS) enhancement mechanisms. Some open research issues are presented for further investigation.
Keyphrases
voice capacity admission control wiley interscience internet application medium access control enhancement mechanism low-cost wireless voice service significant challenge admission scheme wireless local area network 11-based wlan cost efficiency internet protocol performance characteristic wireless network wireline counterpart viable alternative ubiquitous networking technology open research issue vowlan voice capacity analysis popular technology delay-sensitive voice traffic traditional telephony system high resource utilization recent advance
