| Publisher | Old Dominion University | ||
|---|---|---|---|
| Format | 334.9KB PDF | Date added | 27 Jun 2006 |
| Topics | TCP - IP, Wi-Fi (802.11) | ||
| Downloads | 1 | ||
There has been an explosive growth in the use of wireless LANs (WLANs) to support network applications ranging from web-browsing and file-sharing to voice calls. It is difficult to optimally con-figure WLAN components, such as access points (APs), to meet the quality-of-service requirements of the different applications, as well as ensuring flow-level fairness. Recent work has shown that the widely-deployed IEEE 802.11 MAC Distributed Coordination Function (DCF) is biased against downstream flows. The new IEEE 802.11e standard introduces QoS mechanisms, such as Enhanced Distributed Channel Access (EDCA), that allow this unfairness to be addressed. This paper evaluates the impact of EDCA on TCP application traffic consisting of both long and short-lived TCP flows, through ns-2 simulations.
Did you find this white paper useful?
8 out of 22 users found this white paper useful
Related white papers
Building Reliable IP Telephony Systems
Reliability is the most critical aspect of a business phone system. IP telephony systems will deliver differing service levels because their architecture is fundamentally different. Ironically, optimal architecture and design...
Cash In Your PBX -- Upgrade with Cisco. Gain significant new savings now
PBX systems and old telephony applications were just not built for today's business needs. They don't scale easily, struggle to support mobility, and are increasingly expensive to maintain. Now you...
IOS Tips and Tricks
There are a number of things you can do with Cisco's IOS to make your life easier. This white paper presents some ways that IOS commands can help streamline your...
Dell-Customized Mobility Solutions
The marketplace is overflowing with a multitude of mobility options for businesses of all types and sizes. From notebooks, netbooks, and handheld computers to WiFi, smartphones, and mobile broadband, there...
Decoupling Congestion Control From TCP for Multi-Hop Wireless Networks: Semi-TCP
TCP performs poorly in multihop wireless networks and even worse if end-to-end connectivity is often broken such as in challenged networks. Lots of research has been carried out but this...
Interactive Guide: Enterprise Mobility
Getting Started With Enterprise Mobility: A Guide to Sybase's Enterprise Mobility Platform. With the broadest portfolio of industry-leading products, an innovative mobility platform that provides a foundation for future growth,...
Webcast & Video: Special Report on MEAP featuring research from Gartner
Complimentary Webcast: Taking a Strategic Approach to Enterprise Mobility. Whether you're just getting started with mobility or have already rolled out multiple applications, taking a strategic approach to mobility is...
