Strategic compression and transmission of information

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper considers the problem of communication in the context of strategic information transfer (SIT) concept of Crawford and Sobel in economics. SIT is different from the conventional communication paradigms since it involves different objectives for the encoder and the decoder, which are aware of this mismatch and act accordingly. This leads to a game whose equilibrium solutions are studied here. We model the problem as a Stackelberg game-as opposed to the Nash model used in prior work in economics- where the encoder is the leader and its distortion measure depends on a private information sequence which is non-causally available, only to the encoder; and the decoder is the follower. We consider three problem settings focusing on the quadratic distortion measures and jointly Gaussian source and private information: compression, communication (joint source-channel coding over a scalar Gaussian channel), and the simple equilibrium conditions without any compression or communication. We characterize the fundamental limits -asymptotic in blocklength- of the equilibrium strategies and associated costs for these problems. For the quadratic-Gaussian case, we compute the equilibrium conditions and strategic rate-distortion function explicitly, and show optimality of uncoded communication over an additive white Gaussian channel, paralleling the well-known optimality of uncoded communication in the conventional, nonstrategic communication setting.

Original languageEnglish (US)
Title of host publicationITW 2015 - 2015 IEEE Information Theory Workshop
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781467378529
StatePublished - Dec 17 2015
EventIEEE Information Theory Workshop, ITW 2015 - Jeju Island, Korea, Republic of
Duration: Oct 11 2015Oct 15 2015

Publication series

NameITW 2015 - 2015 IEEE Information Theory Workshop


OtherIEEE Information Theory Workshop, ITW 2015
Country/TerritoryKorea, Republic of
CityJeju Island

ASJC Scopus subject areas

  • Information Systems


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