In-service monitoring of multipath delay and cochannel interference for indoor mobile communication systems

A theoretical approach is presented for estimating the quality of signal reception, in an indoor mobile communication system with high transmission bit-rate. A frequency-selective channel model is used for M-ary PSK modulated signals corrupted by additive white noise and interference under Nagakami-Rice fading conditions. Subsequently, the problem of finding a practical way to determine the level of interference (due to frequency reuse from neighbouring microcells and due to the multipath delay spread) is addressed. Thus, a parameter is proposed as a quality factor for measuring, in real-time, the reliability of the communication link. The proposed method helps decision making for on-line network management such as dynamic channel allocation and adaptive power control