Multiple Delay-Moments Based Estimators for True Coherence Bandwidth

The traditional technique for coherence bandwidth estimation exploits only the second-order information of a power delay profile (PDP), thus often failing to act on coherence functions of varying shape, albeit a wide-range multiplier is adopted in the reciprocal formula of rms-delay spread. In this...

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Bibliographic Details
Published inIEEE communications letters Vol. 27; no. 1; pp. 308 - 311
Main Author Zhang, Q. T.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bandwidth
Channel estimation
Coherence
Coherence-fit bandwidth estimators
Delay
delay moments based TCB estimators
Delays
Estimation
ITU
Mathematical models
true coherence bandwidth (TCB)
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Summary:The traditional technique for coherence bandwidth estimation exploits only the second-order information of a power delay profile (PDP), thus often failing to act on coherence functions of varying shape, albeit a wide-range multiplier is adopted in the reciprocal formula of rms-delay spread. In this letter, we exploit constituent delay moments inherent in a general coherence function to construct a new PDP based estimator, resulting in a much better coherence bandwidth estimation.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2022.3210066