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UMTS Capacity and Throughput Maximization for Different Spreading Factors
 

Summary: UMTS Capacity and Throughput Maximization
for Different Spreading Factors
Robert Akl and Son Nguyen
Dept. of Computer Science and Engineering, University of North Texas
Denton, Texas, 76207
Email: {rakl, stn}@cse.unt.edu
Abstract-- An analytical model for calculating capacity
in multi-cell UMTS networks is presented. Capacity is
maximized for different spreading factors and for perfect
and imperfect power control. We also design and implement
a local call admission control (CAC) algorithm which allows
for the simulation of network throughput for different
spreading factors and various mobility scenarios. The design
of the CAC algorithm uses global information; it incorpo-
rates the call arrival rates and the user mobilities across
the network and guarantees the users' quality of service
as well as pre-specified blocking probabilities. On the other
hand, its implementation in each cell uses local information;
it only requires the number of calls currently active in that
cell. The capacity and network throughput were determined

  

Source: Akl, Robert - Department of Computer Science and Engineering, University of North Texas

 

Collections: Computer Technologies and Information Sciences