Theoretical Analysis of Multi Integrating RX Front-Ends for Lossy Broad-Band Channels

Recent advances in wire-like communication channels without a physical wire has seen the emergence of wireline-like broadband channels but with atypical high loss. Communication links using such channels (e.g., Proximity Communication, Human Body Communication) are typically broadband, like wireline...

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Bibliographic Details
Published in:IEEE open journal of circuits and systems 2021, Vol.2, p.363-379
Main Authors: Roy Chowdhury, Antroy, Maity, Shovan, Sen, Shreyas
Format: Article
Language:English
Subjects:
Amplification
Amplifiers
broad-band communication
Broadband
Broadband antennas
Broadband communication
channel loss
Channels
Circuit design
CMOS
Communication
Current integrating amplifier
Design
Latches
Noise
Power consumption
Power demand
Receivers
Space exploration
Topology
Transceivers
Wire
Wireless communication
Wireless communications
wirelinelike channels
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Summary:Recent advances in wire-like communication channels without a physical wire has seen the emergence of wireline-like broadband channels but with atypical high loss. Communication links using such channels (e.g., Proximity Communication, Human Body Communication) are typically broadband, like wireline systems but noise-limited like wireless systems. Hence, employing broad-band communication through such emerging channels calls for new research on analyzing, designing and finding the theoretical limits for receiver topologies suitable for lossy broad-band channels . In this paper, we present a theoretical analysis framework for various broadband receivers in combination with low-noise amplifiers and proposed multi-integrator cascade, which provides significant gain with relatively lower power consumption than the standard gain elements. Through 1) derivation of new noise analysis of integrating-sampling receivers, 2) proposal of a new circuit topology (multi-integrating receiver, MIR) and 3) development of a thorough design space exploration framework, including use of a combination of wireless-inspired Low-noise amplifiers (LNA) with wireline-inspired strong-ARM latches, and the newly proposed MIRs, this paper demonstrates the optimum design choices for some common scenarios. Maximum achievable data rate and optimum energy-efficiency for various channel losses have been obtained theoretically for different topologies revealing their advantages and limitations, intended to serve as a guide for future receiver designs for lossy broad-band channels . All the circuits have been designed in 65 nm CMOS process with a 1 V supply voltage.
ISSN:2644-1225
2644-1225
DOI:10.1109/OJCAS.2021.3078176