The generalized quadratic Gaussian CEO problem: New cases with tight rate region and applications Conference Paper

abstract

• We study the generalized quadratic Gaussian CEO problem where K jointly Gaussian remote sources are transformed and independently-Gaussian-corrupted to form L observations, which are separately compressed by L encoders while the decoder attempts to reconstruct the L remote sources subject to a sum-distortion constraint. We first give a sufficient condition for the existing inner and outer regions to coincide, and then show that the new condition contains more matching cases than Oohama's. The main novelty lies in the fact that rotating the remote sources via orthogonal transformation while keeping a constant observation covariance matrix and the same observation noises does not change the rate region. Further, by exploiting the relationship between the sum-rate bound of the generalized quadratic Gaussian CEO problem and that of the quadratic Gaussian multiterminal source coding problem, we obtain new cases of the latter with tight sum-rate bound. 2010 IEEE.

name of conference

• 2010 IEEE International Symposium on Information Theory

authors

• Xiong, Zixiang

published proceedings

• 2010 IEEE International Symposium on Information Theory

author list (cited authors)

• Yang, Y., Zhang, Y., & Xiong, Z.

citation count

• 4

complete list of authors

• Yang, Yang||Zhang, Yifu||Xiong, Zixiang

publication date

• June 2010

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

Digital Object Identifier (DOI)

• 10.1109/isit.2010.5513305

International Standard Book Number (ISBN) 13

• 9781424469604

start page

• 21

end page

• 25

URL

• http://dx.doi.org/10.1109/isit.2010.5513305