Name
Abstract | ||
|---|---|---|
Rate adaptation is a critical component that impacts the performance of IEEE 802.11 wireless networks. In congested networks, traditional rate adaptation algorithms have been shown to choose lower data-rates for packet transmissions, leading to reduced total network throughput and capacity. A primary reason for this behavior is the lack of real-time congestion measurement techniques that can assist in the identification of congestion-related packet losses in a wireless network. In this work, we first propose two real-time congestion measurement techniques, namely an active probe-based method called Channel Access Delay, and a passive method called Channel Busy Time. We evaluate the two techniques in a testbed network and a large WLAN connected to the Internet. We then present the design and evaluation of Wireless cOngestion Optimized Fallback (WOOF), a rate adaptation scheme that uses congestion measurement to identify congestion-related packet losses. Through simulation and testbed implementation we show that, compared to other well-known rate adaptation algorithms, WOOF achieves up to 300 percent throughput improvement in congested networks. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TMC.2010.108 | IEEE Trans. Mob. Comput. |
Keywords | Field | DocType |
Internet,radio networks,wireless LAN,Internet,WLAN,channel access delay,channel busy time,congested wireless networks,packet transmissions,rate adaptation,real-time measurements,wireless congestion optimized fallback,wireless networks,Wireless communication,access schemes,algorithm/protocol design and analysis. | Wireless network,Wireless,Code rate,Computer science,Network packet,Computer network,Communication channel,Testbed,Throughput,Packet switching | Journal |
Volume | Issue | ISSN |
9 | 11 | 1536-1233 |
Citations | PageRank | References |
14 | 0.71 | 16 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Prashanth A. K. Acharya | 1 | 20 | 1.15 |
| Ashish Sharma | 2 | 182 | 12.17 |
| Elizabeth M. Belding-Royer | 3 | 8067 | 1043.73 |
| Kevin C. Almeroth | 4 | 2551 | 209.40 |
| Konstantina Papagiannaki | 5 | 4094 | 304.11 |