Title :
Capacity analysis of forward-link in DS-CDMA cellular system with power control
Author :
Longpichai, S. ; Rattanakoch, FK ; Kidakorn, P. ; Kimpan, C. ; Pin-Ngern, O. ; Noppanakeepong, S.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
In this paper, we analyze the forward-link capacity of a cellular DS-CDMA system, especially the effects of power control, path loss exponent (γ) and orthogonality factor (f0) of multipath propagation on the system. The problem of finding an optimum power control factor (n) is evaluated. According to n, the proper threshold distance is estimated for optimum performance. With these factors, the numerical results show that the capacity is reduced by changing f0 from 0.7 to 0.2 and γ from 5 to 3.
Keywords :
cellular radio; channel capacity; code division multiple access; multipath channels; numerical analysis; power control; radiowave propagation; spread spectrum communication; telecommunication control; DS-CDMA cellular system; capacity reduction; forward-link capacity analysis; multipath propagation orthogonality factor; numerical analysis; optimum power control factor; path loss exponent; power control; threshold distance; Base stations; Information technology; Land mobile radio cellular systems; Multiaccess communication; Multiple access interference; Power control; Power engineering and energy; Propagation losses; Solid modeling; Spread spectrum communication;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1115291
