Reconfigurable Signal Processing and DSP Hardware Generator for 5G and Beyond Transmitters
Reconfigurable Signal Processing and DSP
Hardware Generator for 5G and
Beyond Transmitters
Abstract:
The digital front-end of the communication transceivers envisioned for fifth-generation (5G) and beyond requires highly configurable high-performance digital signal processing (DSP) hardware operating at very high sampling rates to accommodate increasing signal bandwidths and support a range of modulation schemes and transmitter architectures. In this article, we present an efficient implementation of a highly configurable DSP hardware generator that can generate high-performance DSP hardware for multiple transmitter architectures, including Cartesian, polar, outphasing, and multilevel outphasing modulators. The generated hardware unit, which consists of multistage multirate filters and other required DSP operations, runs at sample rates up to 4 GHz. The hardware supports an adjacent channel leakage ratio (ACLR) down to −48 dB and an error vector magnitude (EVM) of 0.78% with a 7-bit phase signal at a sampling rate of 4 GHz for multilevel outphasing modulation. Digital synthesis of the circuit in a 5-nm complimentary metal-oxide semiconductor (CMOS) process yields a core area consumption of 0.01 mm2 and an estimated power consumption of 37.2 mW for a 200-MHz bandwidth 5G new radio (NR) baseband (BB) signal.
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Reconfigurable Signal Processing and DSP
Hardware Generator for 5G and
Beyond Transmitters
