Correlated link shadow fading in multi-hop wireless networks
Top Cited Papers
- 18 August 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Wireless Communications
- Vol. 8 (8) , 4024-4036
- https://doi.org/10.1109/twc.2009.071293
Abstract
Accurate representation of the physical layer is required for analysis and simulation of multi-hop networking in sensor, ad hoc, and mesh networks. Radio links that are geographically proximate often experience similar environmental shadowing effects and thus have correlated shadowing. This paper presents and analyzes a non-site-specific statistical propagation model which accounts for the correlations that exist in shadow fading between links in multi-hop networks. We describe two measurement campaigns to measure a large number of multi-hop networks in an ensemble of environments. The measurements show statistically significant correlations among shadowing experienced on different links in the network, with correlation coefficients up to 0.33. Finally, we analyze multi-hop paths in three and four node networks using both correlated and independent shadowing models and show that independent shadowing models can underestimate the probability of route failure by a factor of two or greater.Keywords
All Related Versions
This publication has 28 references indexed in Scilit:
- Assessment of urban-scale wireless networks with a small number of measurementsPublished by Association for Computing Machinery (ACM) ,2008
- Connectivity in Wireless Ad-hoc Networks with a Log-normal Radio ModelMobile Networks and Applications, 2006
- Connectivity of Wireless Multihop Networks in a Shadow Fading EnvironmentWireless Networks, 2005
- Base station placement for in-building mobile communication systems to yield high capacity and efficiencyIEEE Transactions on Communications, 2000
- A statistical basis for lognormal shadowing effects in multipath fading channelsIEEE Transactions on Communications, 1998
- Measurements and models for radio path loss and penetration loss in and around homes and trees at 5.85 GHzIEEE Transactions on Communications, 1998
- On the performance of single frequency networks in correlated shadow fadingIEEE Transactions on Broadcasting, 1997
- A Linear Spatial Correlation Model, with Applications to Positron Emission TomographyJournal of the American Statistical Association, 1991
- A Statistical Model for Indoor Multipath PropagationIEEE Journal on Selected Areas in Communications, 1987
- Spatial StatisticsWiley Series in Probability and Statistics, 1981