Anna University 2013 Regulation Syllabus EC6801 Wireless Communication - Download
UNIT I WIRELESS CHANNELS 9
Large scale path loss – Path loss models: Free Space and Two-Ray models -Link Budget design – Small scale fading-Parameters of mobile multipath channels – Time dispersion parameters-Coherence bandwidth – Doppler spread & Coherence time, Fading due to Multipath time delay spread – flat fading – frequency selective fading – Fading due to
Doppler spread – fast fading – slow fading.
UNIT II CELLULAR ARCHITECTURE 9
Multiple Access techniques - FDMA, TDMA, CDMA – Capacity calculations–Cellular concept- Frequency reuse - channel assignment- hand off- interference & system capacity- trunking & grade of service – Coverage and capacity improvement.
UNIT III DIGITAL SIGNALING FOR FADING CHANNELS 9
Structure of a wireless communication link, Principles of Offset-QPSK, p/4-DQPSK, Minimum Shift Keying, Gaussian Minimum Shift Keying, Error performance in fading channels, OFDM principle – Cyclic prefix, Windowing, PAPR.
UNIT IV MULTIPATH MITIGATION TECHNIQUES 9
Equalisation – Adaptive equalization, Linear and Non-Linear equalization, Zero forcing and LMS Algorithms. Diversity –Micro and Macrodiversity, Diversity combining techniques, Error probability in fading channels with diversity reception, Rake receiver,
UNIT V MULTIPLE ANTENNA TECHNIQUES 9
MIMO systems – spatial multiplexing -System model -Pre-coding - Beam forming - transmitter diversity, receiver diversity- Channel state information-capacity in fading and non-fading channels.
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