Accession number:20090111838240
Title:An adaptive polling scheme supporting audio/video streaming in wireless LANs
Authors:Chen, Yaw-Chung (1); Yeh, Han-Ru (2)
Author affiliation:(1) Department of Computer Science and
Information Engineering, Asia University, Wufeng, Taichung, Taiwan;
(2) Department of Computer Science, National Chiao Tung University, Hsinchu, Taiwan
Corresponding author:Chen, Y.-C.
Source title:Proceedings of the IEEE Computer Society Workshop on Future Trends of Distributed Computing Systems
Abbreviated source title:Proc IEEE Computer Soc Workshop Future Trends Distrib Comput
Monograph title:Proceedings - 12th IEEE International Workshop on Future Trends of Distributed Computing Systems, FTDCS 2008
Issue date:2008
Publication year:2008 Pages:16-22
Article number:4683109 Language:English
Document type:Conference article (CA)
Conference name:12th IEEE International Workshop on Future Trends of Distributed Computing Systems, FTDCS 2008
Conference date:October 21, 2008 - October 23, 2008 Conference location:Kunming, China
Conference code:74863
Sponsor:IEEE Comput. Soc. Tech. Committee on Distributed Processing
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:Nowadays IEEE 802.11 family is the most popular
technology amongst wireless protocols including Bluetooth, UWB and WiMAX for wireless services, among which media streaming such as voice over Internet Protocol (VoIP) and IPTV are most demanded with high challenge. To accommodate the QoS issues, EDCA and HCCA functions are defined in IEEE 802.11e. However, EDCA provides QoS based on probability, so it is still unable to fulfill the requirements of time sensitive applications such as VoIP. In this
study, we focus on HCCA polling scheme. We design a new time- based polling scheduler called Adaptive Time-Stamp Polling (ATSP) scheme for QoS improvement, as well as design a mechanism that detects silence mode of a VoIP conversation so as to reduce the frequency of polling silent stations. When the station comes back to talk-spurt mode, we revert to the original frequency to poll.
Simulation results show that our scheme improves the QoS on throughput, jitter, and access delay significantly. © 2008 IEEE.
Number of references:19
Main heading:Wireless local area networks (WLAN)
Controlled terms:Cellular telephone systems - Internet - Internet protocols - Internet telephony - Jitter - Local area networks - Machine design - Standards - Technical presentations - Telecommunication systems - Telephone systems - Voice/data communication systems - Wireless telecommunication systems
Uncontrolled terms:Access delays - Adaptive polling - IEEE 802.11 - Polling schemes - Sensitive applications - Simulation results -
Wireless protocols - Wireless services
Classification code:903.2 Information Dissemination - 902.2 Codes and Standards - 901.2 Education - 751.5 Speech - 723 Computer Software, Data Handling and Applications - 722.3 Data
Communication, Equipment and Techniques - 718.1 Telephone Systems and Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716.4 Television Systems and Equipment - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television - 601 Mechanical Design
DOI:10.1109/FTDCS.2008.38 Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.
