Paper Info
Title
A Novel Optimized Scheduler to Provide QoS for Video IP Telephony over Wireless Networks
Abstract
Voice and video over IP (VVoIP) applications are becoming very popular in Wi-Fi enabled portable/handheld devices, because of recent technological advancements and lower service costs. Video IP telephony service (an enhanced service of voice over IP (VoIP)) and video conferencing over IP networks are good examples of modern IP applications. Different from normal voice & video streaming, these applications demand symmetric throughputs for upstream and downstream. Existing Wi-Fi standards (e.g. IEEE 802.11e EDCA) however fail to provide symmetric throughput due to traffic bottleneck at access points. In this paper, we introduce a new real-time data performance attribute called IP traffic symmetry ratio (IPSR) and use IPSR to propose a round-robin scheduler with minimum overheads for video IP telephony and other similar applications. We refer to this scheduler as TI-MAC (Traffic Intelligent - MAC). The scheduler has been implemented and tested in actual hardware, and compared against IEEE 802.11e EDCA. The proposed scheduler shows significant improvements over existing standards by supporting more number of stations with strict QoS criteria.
Year
DOI
Venue
2011
10.1109/HPCC.2011.66
High Performance Computing and Communications
Keywords
Field
DocType
video ip telephony service,video ip telephony,novel optimized scheduler,video conferencing,ip traffic symmetry ratio,modern ip application,round-robin scheduler,proposed scheduler,ip network,wireless networks,lower service cost,enhanced service,wireless network,internet telephony,quality of service,symmetric,voip,mac,ip telephony
Enhanced service,Wireless network,Computer science,Computer network,Quality of service,Real-time computing,Wireless Multimedia Extensions,Throughput,Videoconferencing,Internet traffic,Voice over IP
Conference
ISBN
Citations 
PageRank 
978-0-7695-4538-7
1
0.41
References 
Authors
13
3
Name
Order
Citations
PageRank
Sushil Dutt110.41
Iftekhar Ahmad27516.19
Daryoush Habibi38220.85