Publications [#236025] of Robert Calderbank

Journal articles or Book chapters PUBLISHED
  1. Calderbank, AR, Multilevel codes and multistage decoding., IEEE Transactions on Communications, vol. 37 no. 3 (1989), pp. 222-229 .

    H. Imai and S. Hirakawa have proposed (1977) a multilevel coding method based on binary block codes that admits a staged decoding procedure. Here the coding method is extended to coset codes and it is shown how to calculate minimum squared distance and path multiplicity in terms of the norms and multiplicities of the different cosets. The multilevel structure allows the redundancy in the coset selection procedure to be allocated efficiently among the different levels. It also allows the use of suboptimal multistage decoding procedures that have performance/complexity advantages over maximum-likelihood decoding.