This note presents variations on the Fibonacci universal code, that may also be called the Gopala-Hemachandra code, that can have applications in source coding as well as in cryptography.

A universal algorithm for sequential data compression is presented. Its performance is investigated with respect to a nonprobabilistic model of constrained sources. The compression ratio achieved by the proposed universal code uniformly approaches the lower bounds on the compression ratios attainable by block-to-variable codes and variable-to-block codes designed to match a completely specified...

In space science and satellite imagery, better resolution of the data information obtained makes images clearer interpretation more accurate. However, huge volume gained by complex on-board instruments becomes a problem that needs to be managed carefully. To reduce stored transmitted on-ground, signals received should compressed, allowing good original source representation in reconstruction st...

Transmission of compressed video over ATM networks requires efficient data priority partition techniques. In association with intelligent cell discard schemes, these techniques aim to minimize loss probability of critical information in the situation of congestion. In this paper, we propose a new videooriented priority data partition mechanism named Extended Priority Assignation Scheme (ExPAS)....