Title :
Paired block line codes for pure photonic networks
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
New line coding schemes called paired block codes (PBC) are investigated for application in future pure photonic networks. The first block of each pair utilises coding rule violations to simplify transmission frame structures to facilitate frame processing to complement limited capabilities of photonic logic devices. The second block is provided with sufficient redundancies to attain photonic clock recovery through logical processing. An upper bound efficiency of this type code is 75%.
Keywords :
digital communication systems; encoding; optical links; clock recovery; coding rule violations; frame processing; line coding schemes; logic devices; logical processing; paired block codes; pure photonic networks; redundancies; transmission frame structures; upper bound efficiency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890179
