Diversity versus Channel Knowledge at Finite Block-Length
Author(s)Yang, Wei; Durisi, Giuseppe; Koch, Tobias; Polyanskiy, Yury
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We study the maximal achievable rate R*(n, ∈) for a given block-length n and block error probability o over Rayleigh block-fading channels in the noncoherent setting and in the finite block-length regime. Our results show that for a given block-length and error probability, R*(n, ∈) is not monotonic in the channel's coherence time, but there exists a rate maximizing coherence time that optimally trades between diversity and cost of estimating the channel.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2012 IEEE Information Theory Workshop (ITW)
Institute of Electrical and Electronics Engineers
Wei Yang, Giuseppe Durisi, Tobias Koch, and Yury Polyanskiy. "Diversity Versus Channel Knowledge at Finite Block-length." In 2012 IEEE Information Theory Workshop, 3-7 September 2012 : Lausanne, Switzerland , Pp. 572–576.
Author's final manuscript
INSPEC Accession Number: 13227996