Chal­lenges & Chances of Hybrid Wired Network

Lisa Underberg
JKU Linz
SCP1, MT327
Altenberger Straße 69
4040 Linz
Tuesday, 2018-09-04

On Sept. 4th Lisa Under­berg, TU Dort­mund/​Germany, gave a high quality presen­ta­tion about chal­lenges and chances of hybrid wired-wire­less networks in indus­trial appli­ca­tions. She pointed out that use cases lay base for requi­re­ments in factory commu­ni­ca­tion to tackle realistic problems conside­ring the factory floor. This event was jointly orga­nized by the IEEE Austrian Joint COM/​MTT Chapter, JKU and Silicon Austria Labs.

Deman­ding factory auto­ma­tion needs flexible commu­ni­ca­tion networks

Wire­less commu­ni­ca­tion networks will faci­li­tate current and enable future indus­trial appli­ca­tions, if inter­ope­ra­bi­lity issues are over­come and full flexi­bi­lity is acces­sible. However, the currently employed wired networks, espe­cially in deman­ding factory auto­ma­tion appli­ca­tions, are rigid in their commu­ni­ca­tion protocol and their physical struc­ture. More­over, they will not be comple­tely replaced by a more flexible and retro­fit­table wire­less network in the near future. In order to support the deploy­ment of wire­less commu­ni­ca­tion networks, hybrid wired-wire­less networks have to be deve­l­oped. Here, the coope­ra­tion of wired and wire­less network has to be effi­cient to fulfill the chal­len­ging indus­trial requi­re­ments and main­tain the wired network's perfor­mance.

Generic hybrid wired-wire­less network

The talk gave an over­view on indus­trial requi­re­ments by reviewing indus­trial appli­ca­tions and iden­ti­fying the rele­vant proper­ties of state of the art indus­trial networks. Based on this over­view, a generic hybrid wired-wire­less network topo­logy was discussed. Since state-of-the-art wire­less networks are not suitable to fulfil the appli­ca­ti­ons' requi­re­ments, the basics of a promi­sing new physical layer (PHY) approach were presented: parallel sequence spread spec­trum (PSSS). The PSSS PHY offers a great flexi­bi­lity to resource sharing, which is espe­cially attrac­tive to indus­trial commu­ni­ca­tion networks. Finally, the German ParSec project (https://​ was shortly intro­duced as it focusses on the imple­men­ta­tion of such a hybrid wired-wire­less commu­ni­ca­tion network.