'Hexagonal cell' diaporamas de présentation

EEE440 Modern Communication Systems

EEE440 Modern Communication Systems. Cellular Systems. Introduction. The geographical area of coverage is organised into cells Each cell is controlled by a base station

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Radio Resource Management

Radio Resource Management. 1. Frequency reuse among cells. Multiple Access within cells:. 2. How to share radio resources among multiple users. Frequency Division Multple Access: FDMA. Every user has its own frequency channel. Time Division Multiple Access: TDMA.

300 views • 15 slides

Radio Resource Management

Radio Resource Management. 1. Frequency reuse among cells. Multiple Access within cells:. 2. How to share radio resources among multiple users. Frequency Division Multple Access: FDMA. Every user has its own frequency channel. Time Division Multiple Access: TDMA.

310 views • 15 slides

Radio Resource Management

Radio Resource Management. 1. Frequency reuse among cells. Multiple Access within cells:. 2. How to share radio resources among multiple users. Frequency Division Multple Access: FDMA. Every user has its own frequency channel. Time Division Multiple Access: TDMA.

656 views • 15 slides

a -B 12 (rhombohedral, simple structure) b -boron (rhombohedral, complex structure, disordered)

The many phases of boron. a -B 12 (rhombohedral, simple structure) b -boron (rhombohedral, complex structure, disordered) g -B 28 (orthorhombic, high pressure modification). a -B 12. Unit Cell 4.9179 4.9179 12.5805 90 90 120 Vol 263.5 Z 3 Space Group R -3 m H

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