Jonas Höchst

Jonas Höchst
Philipps University of Marburg | PUM · Faculty of Mathematics and Computer Science

Master of Science

About

32
Publications
9,959
Reads
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157
Citations
Introduction
Jonas Höchst currently works at the Faculty of Mathematics and Computer Science, Philipps University of Marburg. Jonas does research in Distributed Computing and Computer Security and Reliability. Their current project is 'Multi-Mechanism-Adaption for the future Internet'.
Additional affiliations
April 2017 - present
Philipps University of Marburg
Position
  • PhD Student
Education
October 2011 - March 2017
Philipps University of Marburg
Field of study
  • Computer Science

Publications

Publications (32)
Preprint
Full-text available
We present a novel data-driven approach to perform smooth Wi-Fi/cellular handovers on smartphones. Our approach relies on data provided by multiple smartphone sensors (e.g., Wi-Fi RSSI, acceleration, compass, step counter, air pressure) to predict Wi-Fi connection loss and uses Multipath TCP to dynamically switch between different connectivity mode...
Article
Full-text available
To cope with the varying delay and bandwidth requirements of today's mobile applications, mobile wireless networks can profit from classifying and predicting mobile application traffic. State-of-the-art traffic classification approaches have various disadvantages: port-based classification methods can be circumvented by choosing non-standard ports,...
Chapter
Full-text available
In disruption-tolerant networking (DTN), data is transmitted in a store-carry-forward fashion from network node to network node. In this paper, we present an open source DTN implementation, called DTN7, of the recently released Bundle Protocol Version 7 (draft version 13). DTN7 is written in Go and provides features like memory safety and concurren...
Chapter
We present Bird@Edge, an Edge AI system for recognizing bird species in audio recordings to support real-time biodiversity monitoring. Bird@Edge is based on embedded edge devices operating in a distributed system to enable efficient, continuous evaluation of soundscapes recorded in forests. Multiple ESP32-based microphones (called Bird@Edge Mics) s...
Chapter
Existing routing algorithms for disruption-tolerant networking (DTN) have two main limitations: (a) a particular DTN routing algorithm is typically designed to achieve very good performance in a specific scenario, but has limited performance in other scenarios, and (b) DTN routing algorithms do not take advantage of network programmability to profi...
Preprint
Full-text available
The most basic behavioural states of animals can be described as active or passive. However, while high-resolution observations of activity patterns can provide insights into the ecology of animal species, few methods are able to measure the activity of individuals of small taxa in their natural environment. We present a novel approach in which the...
Conference Paper
Full-text available
We present tRackIT OS, open-source software for reliable VHF radio tracking of (small) animals in their wildlife habitat. tRackIT OS is an operating system distribution for tRackIT stations that receive signals emitted by VHF tags mounted on animals and are built from low-cost commodity-off-the-shelf hardware. tRackIT OS provides software component...
Conference Paper
Full-text available
Long-term animal monitoring in natural habitats provides significant insights into the animals’ behavior, interactions, health, or external influences. However, the sizes of monitoring devices attachable to animals strongly depends on the animals’ sizes, and thus the range of possible sensors including batteries is severely limited. Gathered data c...
Article
Full-text available
Bats represent a highly diverse group of mammals and are essential for ecosystem functioning. However, knowledge about their behavior, ecology, and conservation status is limited. Direct observation of marked individuals (commonly applied to birds) is not possible for bats due to their small size, rapid movement, and nocturnal lifestyle, while neit...
Article
Full-text available
The worldwide shortage of medical-grade ventilators is a well-known issue, that has become one of the central topics during the COVID-19 pandemic. Given that these machines are expensive and have long lead times, one approach is to vacate them for patients in critical conditions while patients with mild to moderate symptoms are treated with strippe...
Preprint
Full-text available
Information-centric Networking (ICN) is an emerging Internet architecture that offers promising features, such as in-network caching and named data addressing, to support the edge computing paradigm, in particular Internet-of-Things (IoT) applications. ICN can benefit from Complex Event Processing (CEP), which is an in-network processing paradigm t...
Preprint
Full-text available
Emerging network architectures like Information-centric Networking (ICN) offer simplicity in the data plane by addressing \emph{named data}. Such flexibility opens up the possibility to move data processing inside network elements for high-performance computation, known as \emph{in-network processing}. However, existing ICN architectures are limite...
Conference Paper
Full-text available
Computer systems used in the field of humanitarian technology are often based on general-purpose single-board computers, such as Raspberry Pis. While these systems offer great flexibility for developers and users, configuration and deployment either introduces overhead by executing scripts on multiple devices or requires deeper technical understand...
Preprint
Full-text available
Computer systems used in the field of humanitarian technology are often based on general-purpose single-board computers, such as Raspberry Pis. While these systems offer great flexibility for developers and users, configuration and deployment either introduces overhead by executing scripts on multiple devices or requires deeper technical understand...
Preprint
Full-text available
The worldwide shortage of medical-grade ventilators is a well-known issue, that has become one of the central topics during the COVID-19 pandemic. Given that these machines are expensive and have long lead times, one approach is to vacate them for patients in critical conditions while patients with mild to moderate symptoms are treated with strippe...
Preprint
Full-text available
Contact tracing apps running on mobile devices promise to reduce the manual effort required for identifying infection chains and to increase the tracing accuracy in the presence of COVID-19. Several contract tracing apps have been proposed or deployed in practice. Also Google and Apple have announced their joint effort of providing an API for expos...
Conference Paper
Full-text available
In this paper, we present an approach to facilitate long-range device-to-device communication via smartphones in crisis scenarios. Through a custom firmware for low-cost LoRa capable micro-controller boards, called rf95modem, common devices for end users can be enabled to use LoRa through a Bluetooth, Wi-Fi, or serial connection. We present two app...
Preprint
Full-text available
Currently, nearly four billion people live in urban areas. Since this trend is increasing, natural disasters or terrorist attacks in such areas affect an increasing number of people. While information and communication technology is crucial for the operation of urban infrastructures and the well-being of its inhabitants, current technology is quite...
Preprint
Full-text available
In disruption-tolerant networking (DTN), data is transmitted in a store-carry-forward fashion from network node to network node. In this paper, we present an open source DTN implementation, called DTN7, of the recently released Bundle Protocol Version 7 (draft version 13). DTN7 is written in Go and provides features like memory safety and concurren...
Preprint
Full-text available
Computation offloading is often used in mobile cloud, edge, and/or fog computing to cope with resource limitations of mobile devices in terms of computational power, storage, and energy. Computation offloading is particularly challenging in situations where network connectivity is intermittent or error-prone. In this paper, we present OPPLOAD, a no...
Article
Full-text available
Information-centric disruption-tolerant networks (ICN-DTNs) are useful to re-establish mobile communication in disaster scenarios when telecommunication infrastructures are partially or completely unavailable. In this paper, we present opportunistic named functions, a novel approach to operate ICN-DTNs during emergencies. Affected people and first...
Article
Full-text available
Several protocols used in wireless networks rely on nodes announcing information to other nodes. This can be illustrated by service announcements sent in ZeroConf, routing announcements used in OLSR, and peer announcements in wireless peer-to-peer or delay-tolerant networking systems such as Forban and Serval. The main problem is that these protoco...
Article
Full-text available
Serval is an open-source, delay-tolerant wireless ad-hoc networking system designed to allow communications anywhere and anytime, despite the total loss of supporting telecommunications infrastructures provided by mobile phone operators. In emergency situations, Serval can be used to establish a disaster-response communications network spontaneousl...
Article
Full-text available
Electronic mail is one of the oldest and widely used services in the Internet. In this paper, an empirical study of the security properties of email server communication within the German IP address space range is presented. Instead of investigating end-user security or end-to-end encryption, we focus on the connections between SMTP servers relying...

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Projects

Projects (3)
Project
Successful conservation strategies require frequent observations and assessments of the landscape. Although expert surveys provide a great level of detail, the trade-off is the limited spatial coverage and repetition with which they are executed. Remote sensing technology can partially resolve these issues; nevertheless, it still requires experts’ experience to create conservation planning and reaction options. Nature 4.0 seeks to address these shortcomings by developing a prototype of a modular environmental monitoring system for high-resolution observation of species, habitats, and processes.