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cs.IT2024
Rejection-Sampled Universal Quantization for Smaller Quantization Errors
Chih Wei Ling, Cheuk Ting Li
We construct a randomized vector quantizer which has a smaller maximum error compared to all known lattice quantizers with the same entropy for dimensions 5, 6, ..., 48, and also h…
cs.IT2023
Vector Quantization with Error Uniformly Distributed over an Arbitrary Set
Chih Wei Ling, Cheuk Ting Li
For uniform scalar quantization, the error distribution is approximately a uniform distribution over an interval (which is also a 1-dimensional ball). Nevertheless, for lattice vec…
cs.IT2022
Weighted Parity-Check Codes for Channels with State and Asymmetric Channels
Chih Wei Ling, Yanxiao Liu, Cheuk Ting Li
In this paper, we introduce a new class of codes, called weighted parity-check codes, where each parity-check bit has a weight that indicates its likelihood to be one (instead of f…