TDHQ Enabling Fine-granularity Adaptive Loading for SSB-DMT Systems

• In this letter, we introduce time domain hybrid quadrature amplitude modulation (TDHQ) for the single sideband (SSB) discrete multi-tone (DMT) systems. Experimental results reveal that with a single precoding set and the proposed adaptive loading algorithm, the TDHQ scheme can achieve finer granularity and therefore smoother continuous growth of data rate than that with the conventional quadrature amplitude modulation (QAM). Besides, thanks to the frame construction and the tailored mapping rule, the scheme with TDHQ has an obviously better peak to average power ratio (PAPR).

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

adaptive loading

discrete multi-tone (DMT)

Optical filters

Optical transmitters

Peak to average power ratio

Precoding

Quadrature amplitude modulation

Signal to noise ratio

single sideband (SSB)

Time domain hybrid quadrature amplitude modulation (TDHQ)

Adaptive optics

Discrete multi-tone

Single side bands

Time domain

Loading

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