QUALITY-PERCEIVED MULTIPLE LABEL-SWITCHED PATHS FOR ACHIEVING ULTRA-RELIABLE WI-FI FOR INDUSTRIAL IOT DEPLOYMENTS

Operating within an environment that incorporates technologies based on Multiprotocol Label Switching (MPLS) and the Label Distribution Protocol (LDP) to provide an ultra-reliable wireless backhaul service supporting large Internet of Things (IoT) and Industrial IoT (IIoT) environments (comprising, for example, many hundreds of radio devices), techniques are presented herein that support a mechanism to implement quality-perceived multiple label-switched paths (LSP)s that can perform replication according to path quality. Aspects of the presented techniques leverage a replication strategy, that is defined on both a client and a Network Appliance that defines how replication should be performed with preconditions, replication should be stopped when the preconditions are not met, or replication should be recovered when a precondition is met. According to aspects of the presented techniques, when a strategic precondition is met or not met, the corresponding LSP state is changed to pending or recovered (respectively) instead of being torn down or being rebuilt

ONBOARDING AND PROVISIONING AUTOMATION FOR MESH ACCESS POINTS

Mesh networks can be implemented in many different scenarios in which direct cabling of access points may not be practical or may not make financial sense. For example, in Internet of Things (IoT) deployments, access points may be located far from each other with very limited physical access. Presented herein are techniques to leverage hardware and software features available on mesh access points to avoid manual configuration in the field

MOVING/ROTATING ANTENNAS FOR WIRELESS ACCESS POINTS

Conventionally, the position and orientation of antennas for wireless access points depends on the position in which a wireless access point is oriented during installation and typically does not change unless the positioning of the wireless access point is changed. Thus, wireless antenna position/orientation typically remains static once an access point is installed. Techniques proposed herein introduce a sensor fusion approach for controlling the direction/orientation of wireless access point antennas in order to improve wireless communications for wireless networks

Realizzazione di un testbed di rete con qualità del servizio per la gestione di servizi integrati

Realizzazione di un testbed di rete con qualità del servizio per la gestione di servizi integrati. Realizzazione di un router basato su Linux che effettua scheduling dei pacchetti con disciplina PTTSD. Per la dimostrazione della funzionalità del router viene realizzato un testbed composto da macchine server e client per la trasmissione di flussi multimediali con requisiti di qualità del servizio

Interdomain Path Computation for PCE-assisted Traffic Engineering

Interdomain Traffic Engineering (TE) across domains employing Path Computation Elements should allow a source domain to select a good AS path, i.e. one likely to allow the actual setup of an interdomain tunnel. This is impossible if the AS path is computed online during path setup (which happens, e.g., in per-domain tunnel setup). On the other hand, the routes that a source domain learns from BGP are normally too few, and oblivious to TE constraints. In this paper, we present the Inter-AS Path Computation Protocol (IA-PCP), whose purpose is to compute a larger number of “good” AS paths, allowing a source to choose the suitable one among a larger set, so as to route PCE-assisted interdomain path computation. We show that, within a reasonable computation time, sending relatively few messages and preserving domain confidentiality, IA-PCP provides a source domain with a set of AS paths which closely approximates the one found exploiting full knowledge of the network AS-topology

Providing Broadband Wireless Connectivity for Public Transportation in future Smart Cities

Providing Broadband Wireless Connectivity for Public Transportation in future Smart Citie

Management of Radio Frequencies in a Wireless or Hybrid Mesh Network

In a wireless or hybrid mesh communication system, radio frequencies are managed by assigning an in-use frequency channel to each local family of nodes, distributing spare frequency channel(s) among the local families of nodes, and changing the in-use frequency channel of at least one selected local family of nodes to a new frequency channel selected among its spare frequency channel(s), if any, or among the spare frequency channel(s) of another local family of nodes if said at least one selected local family of nodes has no spare frequency channel(s), and/or as the in-use frequency channel of another local family of nodes if none of said local families of nodes has spare frequency channel(s)