Abstract:

In order to accelerate power control (PC) simulation, a low computational complexity simulation algorithm is proposed. It replaces multiplication, division, and nonlinear operations with decibel (dB) addition and subtraction to perform wideband code division multiple access (WCDMA) PC. Furthermore, the error of the proposed algorithm is analytically derived. Numerical results show that the proposed algorithm can save lots of simulation time whereas introducing a small amount of error. The proposed algorithm saves 60％～65% central processing unit (CPU) time over the conventional algorithm, and 20％～30% CPU time over the modified conventional algorithm. Equivalently, simulation system aimed at the proposed algorithm reduces 50% CPU time compared to one with the conventional algorithm, and 15% CPU time compared to one with the modified conventional algorithm. To a certain extent, the proposed algorithm has solved the problem that makes dynamic simulator run slowly.

Key words: power control, decibel, interference