Title :
Applications of quasi-uniform codes to storage
Author :
Thomas, Eldho K. ; Oggier, Frederique
Author_Institution :
Sch. of Phys. & Math. Sci., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We consider the design of quasi-uniform codes from dihedral 2-groups. Quasi-uniform codes have the distinctive feature of allowing codeword coefficients to live in different alphabets. We obtain a bound on the minimum distance of quasiuniform codes coming from p-groups as a function of the number of p-ary codeword components. We study possible applications of such codes to storage, where the minimum distance is important to allow object retrieval, yet binary coefficients are preferred for fast computations, for example during repairs.
Keywords :
linear codes; codeword coefficients; dihedral 2-groups; object retrieval; p-ary codeword components; p-groups; quasi-uniform codes; Binary codes; Indexes; Lattices; Linear codes; Periodic structures; Random variables; Vectors;
Conference_Titel :
Signal Processing and Communications (SPCOM), 2014 International Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4799-4666-2
DOI :
10.1109/SPCOM.2014.6983940