Wireless Channels

Course title: Wireless Channels

Code: 3ФЕИТ10З005

Number of credits (ECTS): 6

Weekly number of classes: 3+1+1+0

Prerequisite for enrollment of the subject: Taken course: Switching and Routing

Course Goals (acquired competencies): Familiarization with the fundamental phenomena of transmission of telecommunication signals through wireless radio channels, which affects the design and optimization of wireless systems and networks. (Ability to analyze and describe the properties of the radio channel and its interaction with wireless systems and networks in order to appropriately select the system parameters).

Total available number of classes: 180

Course Syllabus: Radio frequency bands. Path loss in free space propagation. Two-ray wireless channel model. Wireless channel over flat and uneven terrain. Scattering. Knife edge diffraction. Models of diffraction at real obstacles. Fresnel zones. Wireless channel in urban environments. Median path loss in urban environments. Path loss with logarithmic distance. Empirical models of the radio channel. Hata-Okumura model. Shadowing. Random fading. Envelope and phase of faded radio signal. Rayleigh fading. Rice fading. Doppler effect in wireless channels. Clark's model for mobile channel. Doppler spectrum. Coherence time of wireless channel. Level crossing rate. Duration of outages. Frequency selectivity and time dispersion of radio channels. Coherence bandwidth of radio channel. Statistical profile of wireless radio channel. Broadband channel. WSSUS channel. Scattering function of a wireless channel. Simulation modeling of wireless channels.

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