Home // International Journal On Advances in Telecommunications, volume 13, numbers 3 and 4, 2020 // View article
Authors:
Hiroaki Waraya
Masahiro Muraguchi
Keywords: SSB, Hilbert Transform, Multiplexing, Digital Filter, Roll-off Rate
Abstract:
Recently developed wireless communication systems primarily require a modulation scheme with higher spectral efficiency and higher quality. In this study, Single Sideband (SSB) modulation scheme that transmits two different signals at the same carrier frequency is proposed. Additionally, our proposed method employs a 4-times oversampled digital filter. The distance between the folded spectrum and the carrier frequency is quadrupled, and its filter creates a spectrum with a roll-off rate of zero on the transmission side. A digital filter with such characteristics can help reduce the burden of the subsequent analog filter. Under Additive White Gaussian Noise (AWGN) channel environment, Bit Error Rate (BER) performance of SSB quaternary Amplitude-Shift Keying (4ASK) at roll-off rate of zero is superior by 3 dB with respect to Carrier-to-Noise Ratio (CNR) to 16 Quadrature Amplitude Modulation (16QAM) of the same spectral efficiency, without affecting the effect of extra Hilbert components.
Pages: 33 to 42
Copyright: Copyright (c) to authors, 2020. Used with permission.
Publication date: December 30, 2020
Published in: journal
ISSN: 1942-2601