5G and beyond: Multi Baseband PSSS Architecture for 100 Gbps Wireless Communication

In this paper, our concepts for high-speed wireless transceivers that might achieve 100 Gbps in the near future are shown. The targeted carrier frequency is 240 GHz, and the parallel sequence spread spectrum (PSSS) is proposed as a modulation scheme. Although the PSSS is very rarely used for data communication, we show some exciting concepts for the practical realization of high-speed analog PSSS circuits. The PSSS has several advantages when used in high-speed applications. Moreover, we extend the basic PSSS concept by the idea of baseband signals combining. This significantly reduces processing effort and allows to process the baseband signal in parallel. Each baseband processing core can additionally use a parallel bank of AD and DA converters, so that processing of ultra-high-speed signals with relatively large bandwidth is further simplified.