Study of optimum combining diversity for high bit rate indoor radio communication systems using sectored antennas

This paper focusses on new applications of the sectored antenna system with optimum combining in order to accommodate the high data rate. It investigates the required Tx power for a TDMA system application and describes a reference signal generation. For example, the proposed configuration, with minimal ratio analysis requires only 15.9 dBm transmitter power in a 100 ft office (30 ns RMS delay) to reach the minimum 30 Mbps data rate at 10^-4 uncoded BER with a 4 element antenna system, and a 51 Mbps data rate with a 6 element antenna system at 10^-2 outage rate. In the case of optimum combining, only 6 dBm Tx power is required to get the same performance. Furthermore, compared with selective diversity systems, the proposed system can be adapted for any element location as well as a wide range of frequencies