Comparative analysis of dual carrier modulations with channel coding and space-time coding
Abstract
Dual carrier modulation (DCM) is a type of modulation proposed for use at high data rates. DCM was created to make successful communication by making transmitter diversity. In this modulation, the same information is modulated with two different constellation diagrams, forming a kind of 1/2 code rate versus raw modulation. In space-time coding, performance improvement is made by utilizing multiple antenna diversity. This paper presents a comprehensive comparative analysis of DCM with channel coding and space-time coding techniques in the context of wireless body area networks (WBANs). The performance of DCM is evaluated against 1/2 convolution channel coding, 16 quadrature amplitude modulation (16QAM), quadrature phase shift keying (QPSK), and binary phase shift keying (BPSK) modulations. Additionally, the single input single output (SISO) adaptation of Alamouti space-time block coding (STBC) is considered for comparison with DCM. Extensive simulations are conducted on various channel models, including the additive white Gaussian noise (AWGN), Proakis A, B, C, and WBAN channel model 4 (CM4) channels. The results demonstrate that DCM outperforms convolution channel coding and STBC, particularly at high modulation.
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URN: https://sloi.org/urn:sl:tjoee82290
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