NDLI: On the second order power spectral statistics of wideband indoor microwave channels

Content Provider	IEEE Xplore Digital Library
Author	Derpich, M.S. Feick, R.
Copyright Year	2010
Description	Author affiliation: Universidad Técnica Federico Santa María, Valparaíso, Chile (Derpich, M.S.; Feick, R.)
Abstract	We derive closed form expressions for the second-order statistics of the spectral power gain of wide-band microwave indoor channels. We obtain our results within a framework general enough to be compatible with several popular channel models, such as those proposed by the IEEE 802.15.3a task group, as well as the Saleh-Valenzuela channel model. As all these models, our channel description is based upon clusters and rays with Poisson arrivals and random amplitudes. Our results consist of closed form expressions for the second-order statistics of the channel power frequency response, where statistical averages involve expectations over ray amplitudes and arrival times. We first express the auto-covariance of this frequency response in closed-form. We then use this result to obtain an analytical expression for the variance and second-order moment of the channel power within any given interval of frequencies. This allows us to express the channel spectral diversity as a function of model parameters and bandwidth. From this function, we determine the range within which diversity scales approximately linearly with bandwidth and its upper limit.
Starting Page	335
Ending Page	340
File Size	282753
Page Count	6
File Format	PDF
ISBN	9781424480173
e-ISBN	9781424480166
DOI	10.1109/PIMRC.2010.5671854
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel models Bandwidth Random variables Delay Correlation Wireless communication Frequency response
Content Type	Text
Resource Type	Article

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