Novel High-Speed QAM Receiver Architecture

Brief Description

This technology introduces a revolutionary receiver architecture capable of demodulating high-order QAM signals without the need for high-speed analog-to-digital converters (ADCs), significantly enhancing communication speed and efficiency.

Full Description

The invention presents a novel receiver architecture designed for ultra-high-speed communications, employing a carrier synchronization loop and a high-speed pipelined structure. This architecture uniquely demodulates high-order QAM signals directly into raw bit-streams, bypassing the need for ADCs in the signal path and addressing the critical bottleneck in conventional receiver designs.

Suggested uses

• Wireless front-haul/back-haul in 5G, 6G, and beyond wireless networks. 
• Coherent optical communications. 
• Next-generation wireline systems requiring ultra-high data rates.

Advantages

• Eliminates the need for high-speed-resolution ADCs, reducing power consumption and cost. 
• Supports demodulation of any 4N-QAM signal at arbitrary carrier frequencies. 
• Improves communication speed by removing the ADC bottleneck.

Patent Status

Additional Patent Pending

Related Materials

• Oveisi, M., Wang, H., Heydari, P. (2023). A Study of a Millimeter-Wave Transmitter Architecture Realizing QAM Directly in RF Domain. IEEE Transactions on Circuts and Systems I: Regular Papers, 70 (6).