CORRELATED COCHANNNEL LOG-NORMAL INTERFERERS IN CELLULAR RADIO

The probability of co-channel interference (PCI) in cellular radio sys tems is analyzed assuming that the desired signal and the co-channel i nterferers are correlated in a log-normal shadowing environment. The c orrelation between the signals in a log-normal shadowing environment r educes the PCI and hence allows operation with shorter frequency reuse distances and smaller cluster sizes. Compared with omnidirectional sy stems, the cells employing directional antennas can operate with short er frequency reuse distances and hence provide better usage of the fre quency spectrum.