%0 Conference Paper %1 1462047 %A Kumar, Dileep %A Ryu, Yeonseung %A Jang, Hyuksoo %B CommunicabilityMS '08: Proceeding of the 1st ACM international workshop on Communicability design and evaluation in cultural and ecological multimedia system %C New York, NY, USA %D 2008 %I ACM %K 80211 mac qos voip %P 39--44 %R 10.1145/1462039.1462047 %T Quality of service (QoS) of voice over MAC protocol 802.11 using ns-2 %U http://portal.acm.org/citation.cfm?id=1462047 %X Transmitting voice through IP data network can provide significant cost savings. However if not managed properly, voice quality can degrade due to data network congestion. Voice over IP (VoIP) is gaining an ever increasing popularity. As such, it nowadays represents one of the most studied test applications in the performance evaluation of wireline and wireless networks in which the IEEE 802.11 distributed coordination function protocol or enhanced DCF protocol is used. However, since both DCF and EDCF are contention-based medium access control protocols, it is difficult for them to support the strict QoS requirement for VoIP. In this paper we will investigate QoS indications (for voice packets), Improvement of NS2 network simulator in order to simulate statistical QoS in 802.11 MAC and Show that Uplink/Downlink problem exists in EDCF and suggest different solutions using QoS parameters (DIFS, CWmin and PF). %@ 978-1-60558-319-8

@inproceedings{1462047, abstract = {Transmitting voice through IP data network can provide significant cost savings. However if not managed properly, voice quality can degrade due to data network congestion. Voice over IP (VoIP) is gaining an ever increasing popularity. As such, it nowadays represents one of the most studied test applications in the performance evaluation of wireline and wireless networks in which the IEEE 802.11 distributed coordination function protocol or enhanced DCF protocol is used. However, since both DCF and EDCF are contention-based medium access control protocols, it is difficult for them to support the strict QoS requirement for VoIP. In this paper we will investigate QoS indications (for voice packets), Improvement of NS2 network simulator in order to simulate statistical QoS in 802.11 MAC and Show that Uplink/Downlink problem exists in EDCF and suggest different solutions using QoS parameters (DIFS, CWmin and PF).}, added-at = {2010-04-30T04:15:27.000+0200}, address = {New York, NY, USA}, author = {Kumar, Dileep and Ryu, Yeonseung and Jang, Hyuksoo}, biburl = {https://www.bibsonomy.org/bibtex/263bc7fbe1e8ae8a00cc61f562c92f066/leomir}, booktitle = {CommunicabilityMS '08: Proceeding of the 1st ACM international workshop on Communicability design and evaluation in cultural and ecological multimedia system}, description = {Quality of service (QoS) of voice over MAC protocol 802.11 using ns-2}, doi = {10.1145/1462039.1462047}, interhash = {48864c56800bea0a4e78b6a3fd7f427b}, intrahash = {63bc7fbe1e8ae8a00cc61f562c92f066}, isbn = {978-1-60558-319-8}, keywords = {80211 mac qos voip}, location = {Vancouver, British Columbia, Canada}, pages = {39--44}, publisher = {ACM}, timestamp = {2010-04-30T04:15:27.000+0200}, title = {Quality of service (QoS) of voice over MAC protocol 802.11 using ns-2}, url = {http://portal.acm.org/citation.cfm?id=1462047}, year = 2008 }