IEEE 802.11b voice quality assessment using crosslayer information.
2006 (English)Conference paper (Refereed)
This paper reports on the suitability of IEEE802.11b networks for carrying real-time voice traffic, considering particularly the end terminals. More specifically we looked at such networks in different operating circumstances:an outdoor environment, an office environment,and the influence of competing traffic. Additionally wehave investigated the link protocol in combination with theapplication layer. Based on over 2500 recorded sessions,it can be generally concluded that the 802.11b protocolcan support real-time voice; particularly if the link transmissionrate is immediately lowered after an unsuccessful initial transmission. However, we did find situations where the voice quality deteriorated below commonly accepted values, such as when competing with high-rate TCP traffic,when intervening obstacles blocked the transmission path,and with certain uses of the RTS/CTS mechanism.
Place, publisher, year, edition, pages
2006. 1-7 p.
Computer Science Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-14297OAI: oai:DiVA.org:kth-14297DiVA: diva2:332079
QC 201008022010-08-022010-08-022013-09-09Bibliographically approved