DOAJ Open Access 2014

Joint Delay Doppler Probability Density Functions for Air-to-Air Channels

Michael Walter Dmitriy Shutin Uwe-Carsten Fiebig

Abstrak

Recent channel measurements indicate that the wide sense stationary uncorrelated scattering assumption is not valid for air-to-air channels. Therefore, purely stochastic channel models cannot be used. In order to cope with the nonstationarity a geometric component is included. In this paper we extend a previously presented two-dimensional geometric stochastic model originally developed for vehicle-to-vehicle communication to a three-dimensional air-to-air channel model. Novel joint time-variant delay Doppler probability density functions are presented. The probability density functions are derived by using vector calculus and parametric equations of the delay ellipses. This allows us to obtain closed form mathematical expressions for the probability density functions, which can then be calculated for any delay and Doppler frequency at arbitrary times numerically.

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (3)

Michael Walter

Dmitriy Shutin

Uwe-Carsten Fiebig

Format Sitasi

APA MLA BibTeX

Walter, M., Shutin, D., Fiebig, U. (2014). Joint Delay Doppler Probability Density Functions for Air-to-Air Channels. https://doi.org/10.1155/2014/814218

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Informasi Jurnal

Tahun Terbit: 2014
Sumber Database: DOAJ
DOI: 10.1155/2014/814218
Akses: Open Access ✓