The Malaysian Education Blueprint has focused its aspirations to equip students with unparalleled thinking skills. The implementation of Higher Order Thinking Skills (HOTS) has push students to have the ability to solve problems which it is observed to be lacking. Thus, Computational Thinking (CompT) is proposed as a strategy to advocate solving problem skills among students. Other than that, its introduction to the curricula aims in yielding digital creators in this digital era. However, it has its misconceptions and has been perceived similar to Information and Communication Technology (ICT). Thus, this paper aims to change the perception of CompT and present techniques that can be put to use to promote solving problem skills among students. At the same time, it can complement the effort of enhancing HOTS among students
The wireless channel environment is critical to develop wireless communication. In Quadrature Amplitude Modulation (QAM), the constellation points are in square grid with equal vertical and horizontal spacing. Because of higher order modulation formats, more bit per symbol can be transmitted. M-QAM is the efficient digital modulation method because of its higher constellation points. In this paper, the Bit Error Rate (BER) performance of Orthogonal Frequency Division Multiplexing (OFDM) systems and different arrays of QAM (4, 8, 16, and 64-QAM) modulation techniques has been compared under the Rayleigh fading and Additive White Gaussian Noise (AWGN) channels. All the simulations are carried out in MATLAB. The investigation results shows that the Quadrature Phase Shift Keying (QPSK) modulation scheme gives the best performance in term of BER in OFDM system compared to the M-QAM modulation scheme.
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