Velocity estimation in cellular systems based on the time-frequency characteristics of the received signal

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Velocity estimation in cellular systems based on the time-frequency characteristics of the received signal

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dc.contributor.author Azemi, G
dc.contributor.author Senadji, B
dc.contributor.author Boashash, B
dc.date.accessioned 2011-09-28T17:51:05Z
dc.date.available 2011-09-28T17:51:05Z
dc.date.issued 2001
dc.identifier.citation Signal Processing and its Applications, Sixth International, Symposium on. 2001 Issue Date : 2001 Volume : 2 On page(s): 509 en_US
dc.identifier.isbn 0-7803-6703-0
dc.identifier.uri http://hdl.handle.net/10576/10743
dc.description This paper is an application of time-frequency analysis and IF estimation to a wireless application. (The most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated). en_US
dc.description.abstract Estimating the velocity of the mobile units is of great importance in hierarchical cellular systems since the satisfactory handover of mobiles to macro or micro-cells depends on its present velocity. In this contribution, the first moment of the instantaneous frequency (IF) of the received signal, is proposed as a new velocity estimator. The performance of this estimator in the presence of Rayleigh fading, log-normal shadowing, and additive white Gaussian noise is compared with the conventional zero crossing rate (ZCR) estimator. Simulations show that the performance of the proposed estimator is superior to that of the ZCR velocity estimator, in the presence of additive noise. Also it has been shown that the IF velocity estimator is robust in the presence of shadowing. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject time-frequency analysis en_US
dc.subject IF velocity estimator en_US
dc.subject Rayleigh fading en_US
dc.subject ZCR velocity estimator en_US
dc.subject additive white Gaussian noise en_US
dc.subject dynamic channel assignment algorithms en_US
dc.subject handover en_US
dc.subject hierarchical cellular systems en_US
dc.subject instantaneous frequency en_US
dc.subject log-normal shadowing en_US
dc.subject macro-cells en_US
dc.subject micro-cells en_US
dc.subject mobile units en_US
dc.subject multipath fading model en_US
dc.subject received signal en_US
dc.subject time-frequency characteristics en_US
dc.subject velocity estimation en_US
dc.subject zero crossing rate estimator en_US
dc.title Velocity estimation in cellular systems based on the time-frequency characteristics of the received signal en_US
dc.type Article en_US

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