Table of Contents
International Journal of Vehicular Technology
Volume 2008 (2008), Article ID 413821, 8 pages
Research Article

Performance Analysis of CDMA WLL Systems with Imperfect Power Control and Imperfect Sectorization

Department of Electronic and Electrical Communication Engineering, Faculty of Electronic Engineering, Menoufiya University, Menouf 32952, Egypt

Received 20 September 2007; Accepted 18 July 2008

Academic Editor: Mohsen Guizani

Copyright © 2008 Sami A. El-Dolil. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Wireless local loop (WLL) provides reliable, flexible, and economical access to the local telephone service using radio technology in the place of traditional wireline. In this paper, an analytical model is derived to evaluate the effect of both imperfect power control and imperfect sectorization on the performance of code division multiple access (CDMA) WLL systems. The results show that the capacity degradation, due to imperfect power control, is about 25.8% and 11.5% for single cell and multiple cell systems, respectively. Increasing the overlapping angle from 0 to 5 causes the capacity gain to decrease from 6 to 5.53, while the corresponding sectorization efficiency drops from 100% to 92.3%.