Record Details

Link-level measurements of outdoor 802.11g links

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Link-level measurements of outdoor 802.11g links
 
Creator GUPTA, PULKIT
JAIN, BHARAT
RAMAN, BHASKARAN
KULKARNI, PURUSHOTTAM
 
Subject radio links
wireless local area networks
wireless mesh networks
orthogonal frequency division multiplexing
local area network
 
Description 802.11 based outdoor community mesh networks have seen several deployments in the last few years. Prior link- level studies focus mostly on 802.11 b links, and a systematic and detailed link-level study of 802.11 g is lacking. In this paper, we present a study of the link error rate as a function of the RSSI; we closely examine the RSSI threshold beyond which the link error rate is negligible. Our study is based on a wireless network testbed established in IIT Bombay. The testbed has nine nodes with links varying from 90 m to 1.2 km. We find that the link abstraction holds in the case of 802.11 g and RSSI threshold range can be used for the predictable performance for such links. Significantly, we also observe a shift in the RSSI threshold for outdoor links, as compared to controlled experiments. We report the features of this shift, and analyze the possible causes. Additionally, we have measured the UDP saturation throughput of these links using two different platforms: Soekris net4521, and MikroTik RB433AH. We also document some of the significant unexpected experiences while conducting experiments on our testbed.
 
Publisher IEEE
 
Date 2009-10-08T09:22:51Z
2011-11-28T09:05:36Z
2011-12-15T09:58:06Z
2009-10-08T09:22:51Z
2011-11-28T09:05:36Z
2011-12-15T09:58:06Z
2009
 
Type Article
 
Identifier Proceedings of the 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks Workshops, Rome, Italy, 22-26 June 2009, 1-6
978-1-4244-3938-6
10.1109/SAHCNW.2009.5172943
http://hdl.handle.net/10054/1705
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1705
 
Language en