الفهرس 
mobil communications overviewOnly 14 pages are availabe for public view
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Abstract
Widespread interest in smart antennas has continued for several decades due to their use in numerous applications. The term smart antenna is often used in mobile communications to describe an adaptive process designed to improve the capacity of base stations by focusing the radiated electromagnetic energy on transmit while improving the gain pattern on receive from a mobile system. The enhancement in the capacity of a communication system can be achieved primarily in the implementation of Space Division Multiple Access (SDMA). This is generally carried out using an adaptive process where we have a collection of phased array antennas. To perform adaptive processing in the phased arrays, we need to have some a priori information about the signals that we are trying to detect. We generally know or assume the direction of arrival (DOA) of the signal of interest (SOl). What is unknown is the interference and clutter scenario. Unlike radar, in mobile communications it is difficult to know a priori the DOA of the desired signal. In this case, DOA estimation is exploited before performing adaptive processing to yield the desired information.