Paper Info
Title
Scaling Properties Of Ieee 802.11 Wireless Networks
Abstract
We consider a single-hop wireless network consisting of alpha . N sources, where alpha >= 1 is a scaling factor. These sources are randomly distributed around a single base-station/access-point and utilize the IEEE 802.11 standard for medium access control. The transmission speed of each node C, the minimum contention window CWmin, and the maximum contention window CWmax, are all multiplied by the scaling factor alpha. Further, all protocol time-intervals are multiplied by 1/alpha.We show that as the scaling factor alpha increases, the packet delays become independent of alpha, and therefore, of the number of sources (alpha . N) sharing the wireless channel. At the same time, the user's perceived throughput and drop ratio remain almost invariant.This result is not only of theoretical interest, but also of great practical interest, as it clearly identifies the set of the system's parameters that we should aim to (simultaneously) scale in future versions of the IEEE 802.11 protocol (or in new protocols that utilize similar ideas), so that the system can support a very large number of users, while continuing to deliver to each user at least as good performance as before.
Year
DOI
Venue
2008
10.1109/WIOPT.2008.4586060
2008 6TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC AND WIRELESS NETWORKS AND WORKSHOPS, VOLS 1 AND 2
Keywords
Field
DocType
IEEE 802.11 networks, Performance-preserving scaling laws
Scale factor,Wireless network,IEEE 802.11,Wireless,Computer science,Network packet,Communication channel,Computer network,Throughput,Scaling,Distributed computing
Conference
Citations 
PageRank 
References 
0
0.34
9
Authors
2
Name
Order
Citations
PageRank
Fragkiskos Papadopoulos135222.97
Konstantinos Psounis24042222.36