Title :
Forward-link frequency reuse efficiency of power controlled CDMA cellular system
Author :
Ismail, Mostafa S. ; Rahman, T.A.
Author_Institution :
Radio Res. Group, Universiti Teknologi Malaysia, Johor, Malaysia
Abstract :
The effects of the propagation path loss coefficient (γ) and power control on the forward-link frequency reuse efficiency (K) of a direct sequence code division multiple access (CDMA) cellular system is investigated. A simple analytical model is developed to express the interference received by a user in the home cell from other base stations based on the inverse power-of-distance γ law. Proper factors for optimum power control performance are estimated according to γ. With these factors, K is improved to twice that without power control for γ between 4.5 and 2.5. The degradation in K as γ is increased is significantly less for CDMA than for the traditional FDMA and TDMA cellular systems
Keywords :
cellular radio; code division multiple access; frequency allocation; land mobile radio; power control; pseudonoise codes; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; analytical model; base stations; direct sequence code division multiple access; forward link frequency reuse efficiency; interference; inverse power of distance γ law; optimum power control performance; power controlled CDMA cellular system; propagation path loss coefficient; Analytical models; Base stations; Degradation; Direct-sequence code-division multiple access; Frequency conversion; Frequency division multiaccess; Interference; Multiaccess communication; Power control; Propagation losses;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1995. PIMRC'95. Wireless: Merging onto the Information Superhighway., Sixth IEEE International Symposium on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-3002-1
DOI :
10.1109/PIMRC.1995.480907
