Enhancing the virtual token passing to support isochronous traffic

• Type: Article in International Conference Proceedings Book
• Date: 2006

Authors

Carreiro, FB (Author) Other; Fonseca, JA (Author) Other; Luis Almeida (Author) Other

Conference proceedings International

Title: IEEE International Workshop on Factory Communication Systems - Proceedings, WFCS

Pages: 125-130

WFCS 2006: 2006 IEEE International Workshop on Factory Communication Systems

Torino, 28 June 2006 through 30 June 2006

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-007-KRZ

Abstract (EN): P-NET and VTPE virtual token passing protocols were designed to ensure that any particular master has no hierarchical priority over any other. In both protocols the virtual token rotates in accordance to the increasing addresses of masters. Thus a master can only transmit once per each token rotation cycle which can impair control or monitoring applications requiring isochronous traffic, such as multimedia. This paper presents a modification of the virtual token passing method that allows supporting isochronous traffic by enabling a master to have access to the communication link more than once during the virtual token rotation cycle. These enhancements can also be adapted to P-NET in order to support multimedia if P-NET data rate is to be upgraded. © 2006 IEEE.

Language: English

Type (Professor's evaluation): Scientific