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Forward-link performance of CDMA cellular system

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2 Author(s)
Ismail, M.S. ; Dept. of Electr. Eng., Univ. Teknologi Malaysia, Kuala Lumpur, Malaysia ; Rahman, T.A.

The impact of the propagation path-loss exponent (γ) 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 γ law is developed. The problem of finding proper power-control factors is considered. According to γ, 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 γ from 4.5 to 2.5. For this range in γ, power control can approximately double the capacity compared to the case of no power control

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Vehicular Technology, IEEE Transactions on  (Volume:49 ,  Issue: 5 )