Quantization effects in PDMM: A first study for synchronous distributed averaging

Nowadays, large-scale networks of computing units, often characterized by the absence of central control, have become more commonplace in many applications. To facilitate data processing in these large-scale networks distributed signal processing is required. The iterative behaviour of distributed processing algorithms combined with the limited...

Maximum likelihood amplitude scale estimation for quantization-based watermarking in the presence of Dither

Quantization-based watermarking schemes comprise a class of watermarking schemes that achieves the channel capacity in terms of additive noise attacks.1 The existence of good high dimensional lattices that can be efficiently implemented2–4 and incorporated into watermarking structures, made quantization-based watermarking schemes of practical...