Mobility

Space Time Block Codes: An Overview

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Executive Summary

The demand for mobile communication systems with high data rates has dramatically increased in recent years. New methods are necessary in order to satisfy this huge communications demand, exploiting the limited resources such as bandwidth and power as efficient as possible. In wireless communication systems, multiple antennas when used with appropriate Space-Time Coding (STC) techniques can achieve huge performance in multipath fading wireless links and to provide diversity gain and coding gain, respectively. The use of more than one antenna at transmitting end, improves the receive diversity. Data is encoded using a space - time block code, and then split into n streams which are simultaneously transmitted using n transmit antennas.

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