Improvement BER using Efficient APSK Modulation for Future Wireless Communication System
Nowadays, data communication has enhanced and improved wirelessly to satisfy professionally the needs of high data and to use specific applications for desired users. The newly advanced modulation called Asymmetric Phase Shift Keying (APSK) can be increased the productively and reliability of a wireless communication system, especially for future Fifth Generation (5G) standard. It is advanced by fast data rate, high performance, reducing the Bit Error Rate (BER), decreasing Peak to Average Power Ratio (PAPR), and increasing achievable Signal to Noise Ratio (SNR). APSK with its multiple symbol points are examined by MATLAB programs and the results are proved that the APSK modulation will be the best one compared to Quadrature Amplitude Modulation (QAM) and Phase Shift Keying (PSK) modulation. It combines simultaneously two modulations using both the Amplitude and Phase Shift Keying (ASK and PSK). APSK can be successfully alleviated the effects of multipath wireless propagation which lead to the Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI) problems. It is made the performance of the wireless communication system more powerful of high data rate, less error and robust the system against the multipath fading. From the test results presented in this work, M-APSK modulation is the efficient method that increased capacity, quality, and reliability of wireless communication system by more than 40% BER improvement especially for the high size of modulation.
Keywords - Asymmetric Phase Shift Keying (APSK), Bit Error Rate (BER), Euclidean Distance (ED), Ring Ratio (α) Peak to Average Power Ratio (PAPR), Signal to Noise Ratio (SNR), Quadrature Amplitude Modulation (QAM), Phase Shift Keying (PSK).