Enhanced capacity using transmit diversity and smart antennas

The use of multiple element antennas-both transmitting and receiving-has great potential for increasing the capacity of wireless systems. The maximum capacity is computed for an “edge-excited” cell with 3 base sites and a subscriber terminal with a 3 element array, for line-of-sight channels. In an attempt to approach this capacity, we show that the use of innovative signal processing at the receiver (blind source separation technique) seems to allow the system to achieve a significant portion of this great capacity promised by information theory