Analysis and synthesis of adaptive equalization techniques under various modulation techniques

Abstract

The recent digital transmission system imposes channel equalization technique for transmission of more prominent data rate. In the process of recompensing the turbulent effects, Channel equalization is referred, which spiels a crucial role for enabling more prominent data rate in digital communication. Channel equalizer technique is also crucial to eliminate or minimize the problem of Inter Symbol Interference in a band-limited channel. Active fields of research exemplified by development of advanced algorithms, structures and the excerpt of the design parameters for equalizers is eclipsed by the benefits of different signal processing techniques. This paper entails about vital adaptive algorithms such as Variable step LMS and CMA with QAM and PSK modulation technique and presents a comparative analysis of Error rate evolved in all these combinations of adaptive algorithms and modulation techniques using a SIMULINK platform. All conclusive results are expressed with diagrams.