Abstract
Summary form only given. The asymptotic performance of the modified Lawrence algorithm, a universal binary variable-to-fixed-length source coding algorithm has been investigated. For M (the segment set cardinality) large enough, it has been shown that the rate R(p) as a function of the source parameter p satisfies R(p) ≤ h(p)(1 + (log log M)/(2 log M)) for 0 < p < 1, where h(p) is the binary entropy function. It has also been proved that there exist no codes that have a better asymptotic performance, thereby establishing the asymptotic optimality of the modified Lawrence code. The asymptotic bounds show that universal variable-to-fixed-length codes can have a significantly lower redundancy than universal fixed-to-variable-length codes with the same number of code words.
Original language | English |
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Title of host publication | 1990 IEEE International Symposium on Information Theory (ISIT 1990) |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Number of pages | 1 |
Publication status | Published - 1 Dec 1990 |
Event | 1990 IEEE International Symposium on Information Theory, ISIT 1990 - San Diego, United States Duration: 14 Jan 1990 → 19 Jan 1990 |
Conference
Conference | 1990 IEEE International Symposium on Information Theory, ISIT 1990 |
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Abbreviated title | ISIT 1990 |
Country/Territory | United States |
City | San Diego |
Period | 14/01/90 → 19/01/90 |