Paper Info
Title
Experimental characterization of 802.11n link quality at high rates
Abstract
802.11n has made a quantum leap over legacy 802.11 systems by supporting extremely higher transmission rates at the physical layer. In this paper, we ask whether such high rates translate to high quality links in a real deployment. Our experimental investigation in an indoor wireless testbed reveals that the highest transmission rates advertised by the 802.11n standard typically produce losses (or even outages) even in interference-free environments. Such losses become more acute and persist at high SNR values, even at low interference intensity. We find that these problems are partly due to bad configurations that do not allow exploitation of spatial diversity, partly due to the wider 802.11n channels that expose these sensitive high rates to more interference. We show that these problems can be alleviated using the 802.11n MAC layer enhancements jointly with packet size adaptation.
Year
DOI
Venue
2010
10.1145/1860079.1860087
WiNTECH@MOBICOM
Keywords
Field
DocType
experimental characterization,link quality,bad configuration,higher transmission rate,sensitive high rate,packet delivery ratio,low interference intensity,physical layer,mac layer enhancement,high snr value,high quality link,high rate,mimo,802.11n,highest transmission rate,spatial diversity
Antenna diversity,Ask price,Software deployment,Computer science,Network packet,MIMO,Communication channel,Computer network,Physical layer,Interference (wave propagation)
Conference
Citations 
PageRank 
References 
38
1.99
8
Authors
4
Name
Order
Citations
PageRank
Konstantinos Pelechrinis169248.45
Theodoros Salonidis2124793.31
Henrik Lundgren352359.99
Nitin H. Vaidya486591166.40