Shlezinger, N;
Eldar, YC;
Rodrigues, MRD;
(2019)
Hardware-Limited Task-Based Quantization.
In:
2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC).
IEEE: Cannes, France.
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Abstract
Quantization plays a critical role in digital signal processing systems. Quantizers are typically designed to obtain an accurate digital representation of the input signal, operating independently of the system task, and are commonly implemented using scalar analog-to-digital converters (ADCs). In this work, we study hardware-limited task-based quantization, where a system utilizing a serial scalar ADC is designed to provide a suitable representation in order recover a parameter vector underlying the input signal. We propose hardware-limited taskbased quantization systems for a fixed and finite quantization resolution, and characterize their achievable distortion. Our results illustrate that properly designed hardware-limited systems can approach the optimal performance achievable with vector quantizers, and that by taking the underlying task into account, the quantization error can be made negligible with a relatively small number of bits.
| Type: | Proceedings paper |
|---|---|
| Title: | Hardware-Limited Task-Based Quantization |
| Event: | 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) |
| Location: | Cannes, FRANCE |
| Dates: | 02 July 2019 - 05 July 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/SPAWC.2019.8815422 |
| Publisher version: | https://doi.org/10.1109/SPAWC.2019.8815422 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Quantization, Analog-to-digital conversion |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10117013 |
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