Traffic Modelling for Capacity Analysis of CDMA Networks using Gausian Approximation Method

B. O. Omijeh; R. E. Okonigene; R. Ochi

This paper presents, modelling telephone traffic in cellular networks operating with Code Division Multiple Access (CDMA) for the purpose of capacity analysis of such systems. With the current use of CDMA as the preferred multiple access technique due to its capacity advantage, there is the need for tools that will assist in ensuring quality of service and proper network dimensioning. This work produces a model useful for capacity analysis. Focusing on the reverse link, this is achieved by modelling telephone traffic using Gaussian assumptions to generate a CDMA blocking probability that is adapted into Erlang B formula for capacity calculations. A program written in MATLAB is used to realise the blocking probability formula with graphical outputs that is a tool for dimensioning. Results show that variations in network parameters affect CDMA capacity and that CDMA has a huge capacity advantage over TDMA and FDMA.

Select Volume / Issues:

• Volume 5,Issue 3,May 2014

Year:

2014

Type of Publication:

Article

Keywords:

Modelling; CDMA; Gausian; MATLAB; Erlang; Telephone; Traffic

Journal:

IJECCE

Volume:

5

Number:

3

Pages:

490-496

Month:

May