Title :
An improved second-order power control iterative algorithm
Author :
Wu, Linjun ; Zhu, Shihua ; Feng, Xingle
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The paper proposes an improved second-order power control (ISOPC) algorithm for code division multiple access (CDMA) systems. The ISOPC uses current and previous power levels for power updates and it has fast convergence speed. Convergence analysis is performed and the condition of ISOPC convergence is provided for feasible systems. The ISOPC algorithm is then simulated in a DS-CDMA system. The results indicate that the new algorithm has faster convergence speed compared to the SOPC algorithm.
Keywords :
code division multiple access; convergence of numerical methods; iterative methods; power control; spread spectrum communication; telecommunication control; DS-CDMA; code division multiple access; fast convergence speed; improved second-order power control algorithm; iterative algorithm; Algorithm design and analysis; Analytical models; Convergence; Iterative algorithms; Matrix converters; Multiaccess communication; Multiple access interference; Performance analysis; Power control; Power system modeling;
Conference_Titel :
Mobile Future and Symposium on Trends in Communications, 2003. SympoTIC '03. Joint First Workshop on
Print_ISBN :
0-7803-7993-4
DOI :
10.1109/TIC.2003.1249103
