Title :
Performance Analysis of Soft Handover Based on FFT in CDMA System
Author :
Zhu, Zhiqiang ; Xu, Guangyin ; Lian, Jian ; Guo, Junqiang
Author_Institution :
Dept.of Electr. Eng. & Inf. Technol., Shandong Univ. of Sci. & Technol., Jinan, China
Abstract :
Aiming at the multimedia services in the 3G and 4G CDMA mobile communication system, a soft handover model, in which an overlaid cellular architecture including one macrocell and seven microcells with video service, is given, and link equation of CDMA discrete system in frequency domain is established. Balancing the forward link and reverse link, adjusting the parameters such as the distance and direction between mobile station and base station, the relationship between the soft handover add threshold of marcocell system and the load factor of microcell system is analyzed quantitatively, and their corresponding performances are simulated in both time domain and frequency domain. The results are shown: the variance of distance is more sensitive to the soft handover performance than the variance of direction does.
Keywords :
3G mobile communication; 4G mobile communication; code division multiple access; fast Fourier transforms; multimedia communication; 3G CDMA mobile communication system; 4G CDMA mobile communication system; CDMA system; FFT; base station; cellular architecture; code division multiple access system; fast Fourier transforms; mobile station; multimedia services; soft handover; 3G mobile communication; 4G mobile communication; Base stations; Equations; Frequency domain analysis; Macrocell networks; Microcell networks; Multiaccess communication; Multimedia systems; Performance analysis;
Conference_Titel :
Computational Intelligence and Software Engineering, 2009. CiSE 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4507-3
Electronic_ISBN :
978-1-4244-4507-3
DOI :
10.1109/CISE.2009.5362991
