The source coding game with a cheating switcher

Motivated by the lossy compression of an active-vision video stream, we consider the problem of finding the rate-distortion function of an arbitrarily varying source (AVS) composed of a finite number of subsources with known distributions. Berger’s paper ‘The Source Coding Game’, IEEE Trans. Inform. Theory, 1971, solves this problem under the condition that the adversary is allowed only strictly causal access to the subsource realizations. We consider the case when the adversary has access to the subsource realizations non-causally. Using the type-covering lemma, this new rate-distortion function is determined to be the maximum of the IID rate-distortion function over a set of source distributions attainable by the adversary. We then extend the results to allow for partial or noisy observations of subsource realizations. We further explore the model by attempting to find the rate-distortion function when the adversary is actually helpful. Finally, a bound is developed on the ...

• Type: Journal
• Year: 2007
• Where: CORR
• Authors: Hari Palaiyanur, Cheng Chang, Anant Sahai
• Keywords: CORR 2007, Education, IID Rate-distortion Function, Rate-distortion Function, Subsource Realizations