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Temporal Correlation of Interference in Wireless Networks with Rayleigh Block Fading
Dec. 2012 (vol. 11 no. 12)
pp. 2109-2120
Udo Schilcher, University of Klagenfurt, Klagenfurt
Christian Bettstetter, University of Klagenfurt Lakeside Labs, Klagenfurt Klagenfurt
Günther Brandner, University of Klagenfurt, Klagenfurt
The temporal correlation of interference is a key performance factor of several technologies and protocols for wireless communications. A comprehensive understanding of interference correlation is especially important in the design of diversity schemes, whose performance can severely degrade in case of highly correlated interference. Taking into account three sources of correlation—node locations, channel, and traffic—and using common modeling assumptions—random homogeneous node positions, Rayleigh block fading, and slotted ALOHA traffic—we derive closed-form expressions and calculation rules for the correlation coefficient of the overall interference power received at a certain point in space. Plots give an intuitive understanding as to how model parameters influence the interference correlation.
Index Terms:
Fading channels,Interference,Rayleigh channels,Wireless networks,Random variables,Wireless communication,time diversity,Wireless networks,interference,correlation,Rayleigh fading,spatial stochastics
Udo Schilcher, Christian Bettstetter, Günther Brandner, "Temporal Correlation of Interference in Wireless Networks with Rayleigh Block Fading," IEEE Transactions on Mobile Computing, vol. 11, no. 12, pp. 2109-2120, Dec. 2012, doi:10.1109/TMC.2011.244
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