摘要 : Power control is an effective technique to reduce cochannelinterference and increase capacity for cellular radio systems. Optimumcentralized power control can minimize the outage probability, butrequires the information of all lin... 展开 Power control is an effective technique to reduce cochannelinterference and increase capacity for cellular radio systems. Optimumcentralized power control can minimize the outage probability, butrequires the information of all link gains in real time, which is verydifficult to successfully implement for a large system; besides, thecomputational complexity of an optimum power control algorithm makes itimpractical for real implementations. We propose some centralized powercontrol algorithms with reasonable computational complexity. One of thealgorithms, called the SMIRA algorithm, has an outage probability thatis very close to the minimum. We also study a class of distributed powercontrol algorithms that can achieve a balanced carrier-to-interferenceratio with probability one. Among the class of algorithms, we found thatthe one proposed by Grandhi, Vijayan, and Goodman (1992), gives theminimum outage probability 收起