Title :
Linear distortion compensation based on SOM for digital wireless communications
Author :
Zhou, Hong ; Kawamura, Takeshi
Author_Institution :
Dept. of Electron., Inf. & Commun. Eng., Osaka Inst. of Technol., Japan
Abstract :
We propose a novel and simple linear distortion compensation scheme utilizing Kohonen´s self-organizing maps (SOM) network for digital wireless communications. The scheme compensates the distortions that exist in modulator and demodulator, at the decision stage in the receiver at the same time of data transmission and decision process. The scheme can compensate not only static but also changing distortions. Computer simulations using QPSK signals have confirmed the effectiveness of the proposed scheme.
Keywords :
demodulators; digital radio; distortion; modulators; quadrature phase shift keying; self-organising feature maps; Kohonen self-organizing maps; QPSK; SOM network; changing distortions; demodulator; digital wireless communications; linear distortion compensation; modulator; static distortions; Baseband; Circuits; Constellation diagram; Data communication; Demodulation; Electronic components; Phase distortion; Phase modulation; Quadrature phase shift keying; Wireless communication;
Conference_Titel :
Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8593-4
DOI :
10.1109/ISCIT.2004.1413900
