ACCESS POINT TRANSMISSION OPTIMIZATIONS USING MACHINE LEARNING BASED TRAFFIC CLASSIFICATION

Techniques are described herein for optimizing access point transmissions. According to these techniques, configuration, state, and tuning of an access point transmission scheduler are externalized to a network core (e.g., a wireless LAN controller (WLC) or Dynamic Network Access Control (DNAC)) and a machine-learning system is used to classify wireless clients based on traffic analysis. The described techniques permit the use of fine-tuned configurations for each access point station and these configurations can be shared across all access points in the case of roaming

WIRELESS LINK AGGREGATION TO PROVIDE AN EFFICIENT AND SMOOTH MULTI-PROTOCOL DATA LINK

When connected to a cellular (e.g., 5G) network a device can receive/transmit Internet Protocol (IP) traffic via the packet data protocol (PDP). When connected to a Wi-Fi network a device can receive/transmit IP traffic via the Institute of Electrical and Electronics Engineers (IEEE) 802.11 protocol. This proposal provides for combining the capabilities of both cellular and Wi-Fi via a Wireless Link Aggregation (WLA) technique that allows for seamless roaming, no IP address change and no gateway change for a mobile device that is switched between access links, and enhanced experiences for users

SECURE WIRELESS CLIENT ONBOARDING AND SEGMENTATION

Techniques are described herein for preventing Media Access Control (MAC) address spoofing attacks based on the two-step onboarding process for open Service Set Identifiers (SSIDs) due to Virtual Local Area Network (VLAN) override after the Internet Protocol (IP) address is learned. These techniques leverage Opportunistic Wireless Encryption (OWE) and an access token to provide a secure channel between the wireless network and the client

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

AUTOMATED FREQUENCY COORDINATION (AFC) FOR OPEN PIT MINING

The techniques are described herein to facilitate the use of 6GHz frequencies in deployments, such as strip mines, where Access Point (AP) locations change, while still complying with Automated Frequency Coordination (AFC) requirements

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

PROVIDING CENTRALIZED AND RTS/CTS-BASED CHANNEL ACCESS AND RESERVATION

In a mesh topology, the traffic between access points (APs) is very closely related. Under the Institute of Electrical and Electronics Engineers (IEEE) standard 802.11, the carrier-sense multiple access with collision avoidance (CSMA/CA) and Request To Send (RTS)/Clear To Send (CTS) procedures only take into account station (STA)-to-STA transmissions, leading to inefficiencies and overhead for the mesh case. To address this type of challenge, techniques are presented herein that enable, within a wireless mesh network (WMN), collision-free RTS/CTS procedures supporting uplink channel access for the forwarding of backhaul traffic. Aspects of the presented techniques include a mechanism trough which every AP may be made aware of a WMN’s coverage knowledge (e.g., the topology of the mesh network), provide a fine-grained wireless channel asymmetry identification between every mesh node, leverage the WMN coverage knowledge to perform augmented RTS and CTS heuristics, and implement a multi-hop network allocation vector (NAV) channel reservation and distribution facility

LAYER 2 COLLISION AVOIDANCE USING COMPOSED MAC ADDRESS

Techniques are presented herein that leverage the ability of wireless clients to employ a non-constant media access control (MAC) address (to, for example, avoid long-term tracking and identification) and which support a method for segmenting a MAC address field while making sure that wireless clients can still use a per-association non-constant or randomized MAC address (thus solving the tracking and radio collision issue). Aspects of the presented techniques ensure that collisions are prevented on the Distribution System Medium (DSM)/Distribution System Services (DSS) and ensure that a wireless infrastructure can still identify a wireless client across associations and during roaming. Use of such (composed) client MAC addresses in a Layer 2 (L2) infrastructure avoids full randomization and allows for decentralized client lookup and access point (AP) access identification

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High Risk of Anal and Rectal Cancer in Patients With Anal and/or Perianal Crohn’s Disease

International audienceBackground & AimsLittle is known about the magnitude of the risk of anal and rectal cancer in patients with anal and/or perineal Crohn’s disease. We aimed to assess the risk of anal and rectal cancer in patients with Crohn’s perianal disease followed up in the Cancers Et Surrisque Associé aux Maladies Inflammatoires Intestinales En France (CESAME) cohort.MethodsWe collected data from 19,486 patients with inflammatory bowel disease (IBD) enrolled in the observational CESAME study in France, from May 2004 through June 2005; 14.9% of participants had past or current anal and/or perianal Crohn’s disease. Subjects were followed up for a median time of 35 months (interquartile range, 29–40 mo). To identify risk factors for anal cancer in the total CESAME population, we performed a case-control study in which participants were matched for age and sex.ResultsAmong the total IBD population, 8 patients developed anal cancer and 14 patients developed rectal cancer. In the subgroup of 2911 patients with past or current anal and/or perianal Crohn’s lesions at cohort entry, 2 developed anal squamous-cell carcinoma, 3 developed perianal fistula–related adenocarcinoma, and 6 developed rectal cancer. The corresponding incidence rates were 0.26 per 1000 patient-years for anal squamous-cell carcinoma, 0.38 per 1000 patient-years for perianal fistula–related adenocarcinoma, and 0.77 per 1000 patient-years for rectal cancer. Among the 16,575 patients with ulcerative colitis or Crohn’s disease without anal or perianal lesions, the incidence rate of anal cancer was 0.08 per 1000 patient-years and of rectal cancer was 0.21 per 1000 patient-years. Among factors tested by univariate conditional regression (IBD subtype, disease duration, exposure to immune-suppressive therapy, presence of past or current anal and/or perianal lesions), the presence of past or current anal and/or perianal lesions at cohort entry was the only factor significantly associated with development of anal cancer (odds ratio, 11.2; 95% CI, 1.18-551.51; P = .03).ConclusionsIn an analysis of data from the CESAME cohort in France, patients with anal and/or perianal Crohn’s disease have a high risk of anal cancer, including perianal fistula–related cancer, and a high risk of rectal cancer