Cost-constrained random coding and applications

Jonathan Scarlett, Alfonso Martinez, Albert Guillen i Fabregas

Abstract: This paper studies a random coding ensemble in which each codeword is constrained to satisfy multiple cost constraints. Using this ensemble, an achievable second-order coding rate is presented for the mismatched single-user channel. Achievable error exponents are given for the mismatched singleuser channel and the matched multiple-access channel.