Scheduling of real-time and nonreal-time traffics in IEEE 802.11 wireless LANsIEEE 802.11 무선 랜 시스템에서의 실시간 및 비실시간 트래픽 스케쥴링

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 430
  • Download : 0
MAC (Media Access Control) Protocol in IEEE 802.11 Wireless LAN standard supports two types of services, synchronous and asynchronous. Synchronous type of traffic i.e. real-time traffic is served by Point Coordination Function (PCF) that implements polling access method. Asynchronous type of traffic i.e. nonreal-time traffic is provided by Distributed Coordination Function (DCF) based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol. Since real-time traffic is sensitive to delay, and nonreal-time traffic to error and throughput, proper traffic scheduling algorithm needs to be designed. But it is known that the standard IEEE 802.11 scheme is insufficient to serve real-time traffic. And there are a few parameters that influence on performance of system, but not defined. The purpose of this paper is to design these parameters and to propose a traffic scheduling and admission control algorithm for wireless LAN to satisfy the QoS requirements of real-time traffic while guaranteeing minimum throughput for nonreal-time traffic. We conduct performance evaluation and present numerical results to verify that the proposed scheme attains good performance through simulations. Proper system capacity for QoS guarantee is presented with simulation under realistic assumptions. It is shown that the system performance is decline without admission control, and EDD policy improve the performance in large.
Advisors
Lee, Chae-Youngresearcher이채영researcher
Description
한국과학기술원 : 산업공학과,
Publisher
한국과학기술원
Issue Date
2002
Identifier
173960/325007 / 020003427
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 산업공학과, 2002.2, [ [v], 31 p. ]

Keywords

wireless LAN; 무선랜; traffic scheduling

URI
http://hdl.handle.net/10203/41652
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=173960&flag=dissertation
Appears in Collection
IE-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0