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Abstract
The impact of the propagation path-loss exponent (/spl gamma/) on the forward performance of a direct-sequence code-division multiple-access (DS-CDMA) cellular system is investigated. For this purpose, a simple analytical model based on the inverse power-of-distance /spl gamma/ law is developed. The problem of finding proper power-control factors is considered. According to /spl gamma/, the proper power-control factors are estimated for optimum performance. With these factors, results show that the capacity is reduced by a half by changing /spl gamma/ from 4.5 to 2.5. For this range in /spl gamma/, power control can approximately double the capacity compared to the case of no power control.
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