Tight bounds on the codeword length and average codeword length for D-ary Huffman codes - Part 1. Proceedings IEEE ISSCS, Iasi, Romania 2009. p. 531-4.G. Zaharia, V. Munteanu, D. Tarniceriu, "Tight Bounds on the Codeword Lengths and Average Codeword Length for D-ary Huffman Codes ...
Bernard and Sharma's1,3study provided a lead by initiating combinatorial approach for construction and existence of such codes by obtaining bounds on the average codeword length. This paper, extending that work, obtains an improvement over their bound. Some examples are included to elucidate this ...
Codecode 0 lengthword1.0 1 11x10.40 0.370 3001x20.18010.6 0.231 1 3011x30.1 0 40000x40.1 0 40100x0.07 50.13 0.19 1 40101x60.06 0 500010x70.050.091 1 500011x80.0410 4)expectedlength平均码长: 8 Lp(x)lH(X)LH(X)+1 ii i1 10.4+3(0.18+0.1)+4(0.1+0.07+0.06...
New Bounds on the Expected Length of Optimal One-to-One Codes In this correspondence, we consider one-to-one encodings for a discrete memoryless source, which are "one-shot" encodings associating a distinct codeword w... J Cheng,TK Huang,C Weidmann - 《IEEE Transactions on Information Theory...
摘要: Three theorems are given which permit the estimation of average collision probabilities for convex solids of irregular shape by comparison with solids for which the average collision probability is known. (auth)关键词:physics and mathematics collisions configuration solids ...
After the user demands are revealed, during the delivery phase the source sends a codeword (function of the library files, cache placement, and demands) to the users, such that each user retrieves its requested file with arbitrarily high probability. The goal is to minimize the average ...
Minimum codeword length and redundancy of Huffman codes A tight upper bound on the redundancy r of Huffman codes, in terms of the minimum codeword length l, l≥1, is provided. The bound is a strictly decreasing ... RM Capocelli,AD Santis - International Symposium on Coding Theory & Appli...
of x, where 0 denotes all-zeros word. A binary code C of length n is a nonempty subset of F n 2 . An (n, M) code C is a binary code of length n with cardinality M. In this paper we will consider only binary codes.
, D, between sequences in the set satisfies D ≥ 2 n−2 . The problem of finding error-correcting codes where each codeword also has low PAR has application to Orthogonal Frequency Division Multiplexing (OFDM) communications systems [7], Multi-Code CDMA [11], [12], [17], ...
(1,n)inthecode,therebyimprovingcoderatesomewhat.Higherdegreecosetscanalsobe added,marginallyincreasingcoderateatpriceofdistance,D,whichdecreases.Inthispaperwepresentaconstruction formuchlargercodesetsofsequenceswithtightupperboundonPARandgooddistanceproperties.Inparticular,we constructbipolarsequencesetsoflength2 n...