A5019583021- Network Traffic and Congestion Control
- Software-Defined Networks and 5G
- Advanced Wireless Network Optimization
- Wireless Networks and Protocols
- IPv6, Mobility, Handover, Networks, Security
- Cloud Computing and Resource Management
- Caching and Content Delivery
- IoT and Edge/Fog Computing
- Advanced Optical Network Technologies
- Internet Traffic Analysis and Secure E-voting
- Software System Performance and Reliability
- Software Engineering Research
- Image and Video Quality Assessment
- Opportunistic and Delay-Tolerant Networks
- Energy Efficient Wireless Sensor Networks
- Cooperative Communication and Network Coding
- Advanced MIMO Systems Optimization
- Video Coding and Compression Technologies
- Wireless Communication Networks Research
- Network Security and Intrusion Detection
- Network Packet Processing and Optimization
- Software Reliability and Analysis Research
- Network Time Synchronization Technologies
- Service-Oriented Architecture and Web Services
- Multimedia Communication and Technology
Karlstad University
2022-2025
Red Hat (Israel)
2024
Red Hat (United States)
2023
Ericsson (Sweden)
2018-2022
Ericsson (Finland)
2019-2021
Ericsson (Hungary)
2019
Simula Research Laboratory
2014-2018
Ludwig-Maximilians-Universität München
2012
Today many end hosts are equipped with multiple interfaces. These interfaces can be utilized simultaneously by multipath protocols to pool resources of the links in an efficient way while also providing resilience eventual link failures. However how schedule data segments over is a challenging problem, and highly influences performance protocols.
With the widespread availability of multi-homed devices, multipath transport protocols such as MPTCP are becoming increasingly relevant to support better use multiple connectivity through capacity aggregation and seamless failover. However, over heterogeneous paths, offered by cellular Wi-Fi networks, is problematic. It causes packet reordering leading head-of-line (HoL) blocking at receiver, increased end-to-end delays lower application goodput. tackles this issue penalising longer...
The demand for mobile communication is continuously increasing, and devices are now the device of choice many people. To guarantee connectivity performance, typically equipped with multiple interfaces. this end, exploiting available interfaces also a crucial aspect upcoming 5G standard reducing costs, easing network management, providing good user experience. Multi-path protocols, such as multi-path TCP (MPTCP), can be used to provide performance optimization through load-balancing...
Multipath transport protocols utilize multiple network paths (e.g., WiFi and cellular) to achieve improved performance reliability, compared with their single-path counterparts. The scheduler of a multipath protocol determines how distribute the data packets onto different paths. However, state-of-the-art schedulers face challenge when dealing heterogeneous dynamic path characteristics (i.e., packet loss, fluctuation delay). In this paper, we propose Peekaboo, novel learning-based that is...
Edge computing is proposed as a technical enabler for meeting emerging network technologies (such 5G and Industrial Internet of Things), stringent application requirements key performance indicators (KPIs). It aims to alleviate the problems associated with centralized cloud systems by placing computational resources network's edge, closer users. However, complexity distributed edge infrastructures grows when hosting containerized workloads microservices, resulting in hard detect troubleshoot...
Multipath TCP (MPTCP) enables the simultaneous use of multiple links for bandwidth aggregation, better resource utilization and improved reliability. Its coupled congestion control intends to reap increased links, while avoiding being more aggressive than regular flows on every used link. We argue that this leads a very conservative behavior when paths do not share bottleneck. Therefore, in paper, we first quantify penalty Then, order overcome penalty, design implement practical shared...
Multi-path transfer protocols such as Concurrent Multi-Path Transfer for SCTP and TCP (MPTCP), are becoming increasingly popular, due to widespread deployment of smartphones with multi-homing support. Although the idea using multiple interfaces simultaneously improve application throughput is tempting, does transmission over always provide benefits especially in realistic setup? In this paper, we first show that multi-path might actually have a negative impact real-world scenarios mobile...
Over the past years, TCP has gone through numerous updates to provide performance enhancement under diverse network conditions. However, with respect losses, little can be achieved legacy detection and recovery mechanisms. Both fast retransmission timeout take at least one extra round trip time perform, this might significantly impact of latency-sensitive applications, especially in lossy or high delay networks. While forward error correction (FEC) is not a new initiative direction, majority...
Cellular networks have evolved to support high peak bitrates with low loss rates as observed by the higher layers. However, applications and services running over cellular are now facing other difficult congestion-related challenges, most notably a highly variable link capacity bufferbloat. To overcome these issues improve performance of network traffic in 4G/5G networks, number in-network end-to-end solutions been proposed. Fairness between interacting congestion control algorithms (CCAs)...
The fifth generation (5G) of cellular networks aims at providing very high data rates, ultra-reliable low latency, and massive connection density. As one the fundamental design trends toward these objectives, 5G exploits multi-connectivity (i.e., concurrent use multiple access networks), where multipath transport protocols have emerged as key technology enablers. scheduler a protocol determines how to distribute packets onto different paths has critical impact on performance. Within this...
This perspective paper introduces a novel framework for container orchestration called CODECO. The CODECO relies on data-network-computing approach to define the best infrastructure that can support operation of next-generation Internet applications across mobile, heterogeneous Edge-Cloud continuum. selection such an is aligned with target performance profiles defined by user, as resilience or greenness. proposes rely decentralized Artificial Intelligence approaches in attempt provide most...
The fifth generation (5G) cellular network aims at providing very high data rates, ultra reliable low latency communications, and a vast increase of connection density. As one the design trends towards these objectives, 5G exploits multi-connectivity, i.e., concurrent use multiple access networks. Access Traffic Steering, Switching, Splitting (ATSSS) architecture has recently been proposed to enable multipath transport protocols have emerged as key ATSSS technology enabler. Within this...
The promises of multipath transport are to aggregate bandwidth, improve resource utilization, and enhance reliability. In this paper, we demonstrate that the way coupled congestion control is defined today leads a suboptimal utilisation when network paths disjoint, i.e., they do not share bottleneck link. With growing interest in standardising Multipath QUIC (MPQUIC), have implemented practical shared detection (SBD) algorithm from RFC8382 MPQUIC (MPQUIC-SBD). Through extensive experiments,...
In today's digital landscape, the importance of timely and accurate vulnerability detection has significantly increased. This paper presents a novel approach that leverages transformer-based models machine learning techniques to automate identification software vulnerabilities by analyzing GitHub issues. We introduce new dataset specifically designed for classifying issues relevant detection. then examine various classification determine their effectiveness. The results demonstrate potential...
Private and public clouds require users to specify requests for resources such as CPU memory (RAM) be provisioned their applications. The values of these do not necessarily relate the application's run-time requirements, but only help cloud infrastructure resource manager map requested physical resources. If an application exceeds values, it might throttled or even terminated. As a consequence, are often overestimated, resulting in poor utilization infrastructure. Autoscaling is technique...
Every Web session involves a DNS resolution. While, in the last decade, we witnessed promising trend towards an encrypted general, encryption has only recently gained traction with standardisation of over TLS (DoT) and HTTPS (DoH). Meanwhile, rapid rise QUIC deployment now opened up exciting opportunity to utilise same protocol not encrypt communications, but also DNS. In this paper, evaluate benefit using coalesce name resolution via (DoQ), content delivery HTTP/3 (H3) 0-RTT. We compare...
This paper explores opportunities to utilize Large Language Models (LLMs) make network configuration human-friendly, simplifying the of devices & development routing algorithms and minimizing errors. We design a set benchmarks (NetConfEval) examine effectiveness different models in facilitating automating configuration. More specifically, we focus on scenarios where LLMs translate high-level policies, requirements, descriptions (i.e., specified natural language) into low-level...
The Border Gateway Protocol (BGP) coordinates the connectivity and reachability among Autonomous Systems, providing efficient operation of global Internet. Historically, BGP anomalies have disrupted network connections on a scale, i.e., detecting them is great importance. Today, Machine Learning (ML) methods improved anomaly detection using volume path features BGP's update messages, which are often noisy bursty. In this work, we identified different graph to detect anomalies, arguably more...
One of the main goals multipath TCP (MPTCP) is to achieve higher throughput than regular by utilizing multiple paths simultaneously. When these share a common bottleneck, MPTCP tries not be more aggressive flow. This achieved MPTCP's coupled congestion control mechanism that couples increase factor subflows in avoidance. However, slow-start remains unchanged and behaves uncoupled for each subflow, affecting concurrent traffic at bottleneck. We propose LISA, simple algorithm coupling...
Practical shared bottleneck detection has proved to be a difficult problem. We present novel passive approach using efficient estimates of time and frequency domain summary statistics. The is not CPU nor network intensive, numerous potential applications in the Internet. Simulations tests over Internet 3G cellular show its efficacy grouping flows correctly.
QUIC, fostered by Google and under standardization in the IETF, integrates some of HTTP/s, TLS, TCP functionalities over UDP. One its main goals is to facilitate transport protocol design, with fast evolution innovation. However, congestion control QUIC still severely jeopardized packet losses, despite implemented loss recovery mechanisms, whose behavior strongly depends on Round Trip Time. In this paper, we design implement rQUIC, a framework that enables FEC within improve performance...
Multipath TCP was standardised in 2013 at IETF. It promises better use of network resources multi-homed devices for capacity aggregation or seamless fail-over capabilities. The uptake has however been rather slow. Some operating systems support MPTCP out the box, but little is known about their deployment on server side. We built a scanning infrastructure to search MPTCP-capable hosts Internet. In this study, we used top-1M Alexa servers test platform and gain insight support. find that less...
With the 20th anniversary of IPv6 nearing quickly, a growing number Internet service providers (ISPs) now offer their customers both and IPv4 connectivity. This makes multi-homing with increasingly common even just single ISP connection. Furthermore, popularity multi-path transport, especially Multi-Path TCP (MPTCP) that is extension well-known Transmission Control Protocol (TCP), leads to question whether this identity duality can be utilized for improving application performance in...