On the Spectral Efficiency of Bandlimited 1-Bit Quantized AWGN Channels With Runlength-Coding

Given a requirement for very high data rates, 1-bit quantization could become a key component to increase the energy efficiency in sub-THz communication systems. We study the spectral efficiency of a discrete-time 1-bit quantized oversampled AWGN channel using runlength-encoded input signals and faster-than-Nyquist signaling. We derive a framework for obtaining bounds on the spectral efficiency without complex simulations. This includes bandlimited channels as well as channels with excess bandwidth. We observe for the lower bound on the spectral efficiency up to 1.53 and 2.23 bit/s/Hz per dimension for bandlimitation and w.r.t. the 95%-power containment bandwidth, respectively.