Review of Adaptive Modulation Recognition Techniques

Abstract

Rising development in software defined radio (SDR) systems has led to rapid development in adaptive modulation recognition (AMR) techniques. Different order modulations combined with different coding schemes allow sending more bits per symbol, thus achieving higher throughputs and better spectral efficiencies by the use of AMR. The aim of this paper is to study various AMR techniques and compare their advantages and disadvantages to find the most efficient and feasible technique. In the techniques studied, various modulation schemes like M-PSK, GMSK, M-FSK, M-QAM, etc., are capable of being recognized and subsequently demodulated if required.

Keywords: Software defined radio (SDR), adaptive modulation and recognition (AMR)