Statistical properties of correlation on WSSUS channels
Pages 92 - 97
Abstract
To properly characterize the frequency and time selectivity of the fading channel, there several models used to simulate the channel, most of them based in the Jake's simulator. In this work the second order statistics of this simulator are compared to actual measurements. The second-order statistics level crossing rate (LCR) and average duration of fading (ADF) of a random process transmits useful information of the original process, especially in the diversity-combining process. In this work analysis of LCR and ADF in several environments was performed. LCR is calculated in several envelope thresholds and its relationship with envelope change is analyzed. Average duration of fades (ADF) for several thresholds is calculated and analyzed. Graphics are provided of LCR and ADF for several different indoor environments.
References
[1]
1. Jakes W. C., Microwave Mobile Communications, John Wiley and sons, 1974.
[2]
2. Salous S, Hinostroza V, "Bi-dynamic indoor measurements with high resolution sounder", 5th. International Symposium on wireless multimedia Communications, Honolulu Hawaii USA, October 2002.
[3]
3. Beaulieu N. and Dong X., "Level crossing rate and average fade duration of MRC and EGC diversity in Rician Fading", IEEE transactions in communications, Vol. 51, No. 5, May 2003, pp. 722-726.
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4. Xiao C. and Zheng Y., "A generalized simulation model for Rayleigh fading models with accurate second-order statistics", VTC 2002, pp. 170-174.
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5. Chacraborty S. and Yong L., "Level crossing rate and average fade duration of the select and hold policy of selection diversity combining in Rayleigh fading channel", IEEE communications letters, Vol. 8, No. 6, June 2004, pp. 371-373.
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6. Patzol M., Youssef N. and Wang C., "Level crossing rate and average fade duration of deterministic simulation models for Nakagami-Hoyt fading channels", The 5th. Symposium on wireless personal multimedia communications, Vol. 1, October 2002, pp. 272-276.
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7. Kaveh M. and Abdi A., "Level crossing rate in terms of the characteristic function: A new approach for calculating the fading rate in diversity systems.", IEEE transactions on communications, Vol. 50, No. 9, September 2002, pp. 1397-1400.
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8. Patzold M. and Laue F., "Statistical Properties of Jakes' Fading Simulator", in Proc. IEEE VTC Spring, May 1998, pp. 712-718.
[9]
9. Yoo D. and Stark W., "Characterization of WSSUS Channels: Normalized Mean Square Covariance", IEEE Trans. On Wireless Communications, Vol. 4, July 2005, pp. 1575-1584.
[10]
10. Zajic A. and Stuber G., "Efficient Simulation of Rayleigh Fading with Enhanced De-correlation Properties", IEEE Trans. On Wireless Communications, vol. 5, no. 7, july 2006, pp. 1866-1875.
[11]
11. Glisic S., "Advanced Wireless Communications", John Wiley and sons, 2007.
Index Terms
- Statistical properties of correlation on WSSUS channels
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World Scientific and Engineering Academy and Society (WSEAS)
Stevens Point, Wisconsin, United States
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Published: 25 January 2008
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