A novel SIR weighting combining diversity method for mobile communication system

In mobile communications, one way to combat both fading and cochannel interference is diversity reception. Thus, we proposed a novel SIR weighting post detection combining diversity scheme. The SIR is estimated and used as the weighting factor to compensate severe cochannel interference. The most distinctive feature of the proposed method is that the weighting factor (SIR) is estimated from both the matched filter output and a simple equation. Computer simulations confirm that the proposed diversity scheme achieves a better performance than the conventional method.