Bit channel with reused compressed bit sequences in downstream point-to-multipoint networks

Autor: Pavel Lafata
Rok vydání: 2016
Předmět:
Zdroj: Computers & Electrical Engineering. 56:1-14
ISSN: 0045-7906
DOI: 10.1016/j.compeleceng.2016.09.038
Popis: Optimum segmentation step strongly affects the resulting bit gain of a proposed bit addressing technique.Existing bit masking compression techniques are inefficient for random bitstreams contained in downstream network frames.Proposed bit masking technique with pre-defined codeword dictionary can achieve compression ratio less than 1.The complexity of a proposed bit masking technique is generally equal to the complexity of existing methods.Application of both proposed algorithms for bit addressing and bit compression for downstream point-to-multipoint networks can increase their summary throughput. This paper brings an idea of establishing a downstream bit channel based on reusing of bit sequences and bit compression technique in point-to-multipoint passive optical networks for increasing their summary throughput. The downstream communication of these networks is based on broadcasting of multi-frames towards all active end-point nodes, therefore these frames cold be potentially reused multiple times to carry additional data in a form of segmented bit sequences spread within the entire bitstream. In order to achieve maximum effectiveness of a proposed method, bit addressing technique using relative sequence positions is proposed. Moreover, the presented bit compression technique might further increase the resulting summary throughput, while the application of existing bit compression algorithms cannot result in better performance. The illustrate the potential of a proposed algorithm together with the bit compression technique, the simulations and evaluations were performed and are presented within this paper as well. Display Omitted
Databáze: OpenAIRE