Reduction of cochannel interference in cellular systems by intra-zone channel reassignment and adaptive transmitter power control

摘要: In cellular radio systems, cochannel interference determines frequency reuse distance. To achieve high-capacity reduction is considered a key item. Intrazone channel reassignment (IZCR) and adaptive transmitter power control (ATPC), are effective techniques to reduce interference. A novel IZCR algorithm proposed that maximizes the number of channels satisfy required carrier-to-interference ratio (CIR). By computer simulations, effects by either or ATPC both clarified. With call block rate 0.03 outage probability 0.01, CIR margin can be reduced equal more than 10 dB adopting new IZCR. >