Measurement-Based Models of Delivery and Interference in Static Wireless Networks

We present practical models for the physical layer behaviors of

packet reception and carrier sense with interference in static wireless networks. These models use measurements of a real network

rather than abstract RF propagation models as the basis for accuracy in complex environments. Seeding our models requires N

trials in an N node network, in which each sender transmits in

turn and receivers measure RSSI values and packet counts, both

of which are easily obtainable. The models then predict packet

delivery and throughput in the same network for different sets of

transmitters with the same node placements. We evaluate our models for the base case of two senders that broadcast packets simultaneously. We find that they are effective at predicting when there

will be significant interference effects. Across many predictions,

we obtain an RMS error for 802.11a and 802.11b of a half and a

third, respectively, of a measurement-based model that ignores interference.

sigcomm2006-interference.pdf
PDF file

In  SIGCOMM

Publisher  Association for Computing Machinery, Inc.
Copyright © 2007 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept, ACM Inc., fax +1 (212) 869-0481, or permissions@acm.org. The definitive version of this paper can be found at ACM’s Digital Library --http://www.acm.org/dl/.

Details

TypeInproceedings
> Publications > Measurement-Based Models of Delivery and Interference in Static Wireless Networks