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To give a detailed overview of the current developments in wireless digital communications.
• Introduction – The digital communications model, wireless vs. wireline. • The wireless channel – Random channels, coherence time, coherence bandwidth, the scattering function, capacity, free space transmission. • Frequency and time orthogonal signals. • Mobile communications concepts – TDD, FDD • Modulation types – PSK, QAM, OFDM, GMSK, PAM • Spread spectrum – Orthogonal codes, single user detection, multi-user detection, RAKE receiver. • Diversity reception - Time, frequency, spatial • Multiple access – TDMA, FDMA, CDMA • Wireless LAN, cellular and satellite technologies.
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