@inproceedings{Groh2101:Interference,

title = {Interference resilience of Thread: A practical performance evaluation},

author = {Andreas I. {Grohmann} and David {Nophut} and Marek {Sobe} and Adrian {Bretschneider} and Frank H. P. {Fitzek}},

year  = {2021},

date = {2021-01-09},

booktitle = {2021 IEEE 18th Annual Consumer Communications \& Networking Conference 

(CCNC) (CCNC 2021)},

address = {Las Vegas, USA},

abstract = {Currently, most IoT services are hosted centralized 

in a cloud. However, they rely on data gathered by numerous 

distributed sensors, which require to be connected to these clouds. 

At the moment this is realized with non-IP based proprietary 

wireless sensor networks that use inflexible networking concepts 

and require to be carefully configured. 

The Thread protocol, with its implementation OpenThread, is 

a new wireless mesh approach to solve this problem. OpenThread 

is maintained by the Thread group, which is an organization 

supported by almost 300 companies, including Google, Amazon, 

and Apple. Its design is based on an IPv6, for seamless integration 

in existing IP networks. 

This work, after a short a practical overview of the Thread 

protocol in general, investigates the network performance in 

different interference scenarios based on results from a hardware 

testbed, set up in an office building. This testbed is based on 

the Nordic Semiconductor nRF52840 System on a Chip (SoC), 

running OpenThread from the official github repository. Besides 

a thorough examination for round-trip-time (RTT) and losses, a 

stability test was performed over five weeks, to see the impact 

of interference during business hours. We measured RTTs in 

the range of 10 to 100 ms and losses up to 40% depending 

on interfering wireless services. Despite its obvious advantages, 

from our experimental results, it is evident how some practical 

limitations make OpenThread not always a good choice.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Peri2010:Maximizing,

title = {Maximizing Airtime Efficiency for Reliable Broadcast Streams in WMNs with Multi-Armed Bandits},

author = {Giovanni {Perin} and David {Nophut} and Leonardo {Badia} and Frank H. P. {Fitzek}},

year  = {2020},

date = {2020-10-25},

booktitle = {2020 11th IEEE Annual Ubiquitous Computing, Electronics \& Mobile Communication Conference (UEMCON) (IEEE UEMCON 2020)},

address = {virtual, India},

abstract = {Wireless broadcast routing is a complex problem, shown in the literature to be NP-complete. Current protocols implement either heuristics to find solutions that are not guaranteed to be optimal or classic flooding. However, many future use cases, like automotive applications, industrial robotics and multimedia broadcast, will require efficient yet reliable methods. In this work, we use contextual multi-armed bandits together with opportunistic routing (OR) and network coding (NC) to find approximately optimal solutions to the problem of broadcast routing in a distributed fashion. Each router independently learns its own transmission credit, i.e., the number of packets to forward for each innovative packet received, so that the airtime cost, subject to latency constraints, is minimized. Results show that the proposed solutions, particularly the deep learning based one, vastly improve the verall reliability, while performing close to MORE multicast in terms of airtime and to B.A.T.M.A.N. in latency, both being the best candidates in the respective discipline among the tested ones.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Tasd2006:Vehicle,

title = {Vehicle Platooning: Sliding Window RLNC for Low Latency and High Resilience},

author = {Elif {Tasdemir} and Christopher {Lehmann} and David {Nophut} and Frank {Gabriel} and Frank H. P. {Fitzek}},

year  = {2020},

date = {2020-01-01},

booktitle = {IEEE ICC 2020 Workshop on V2X Technologies for Next Generation Driving Paradigm (IEEE ICC'20 Workshop \textendash V2X-NGD)},

address = {Dublin, Ireland},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Pandi-CarsTestbed,

title = {Joint Design of Communication and Control for Connected Cars in 5G Communication Systems},

author = {Sreekrishna {Pandi} and Frank H. P. {Fitzek} and Christopher {Lehmann} and David {Nophut} and Domokos {Kiss} and Viktor {Kov\'{a}cs} and \'{A}kos {Nagy} and G\'{a}bor {Csov\'{a}si} and Mikl\'{o}s {T\'{o}th} and Tam\'{a}s {Rajacsics} and Hassan {Charaf} and Rainer {Liebhart}},

url = {http://ieeexplore.ieee.org/document/7848940/},

year  = {2016},

date = {2016-01-01},

booktitle = {IEEE Globecom Workshops (GC Wkshps)},

pages = {1-7},

organization = {IEEE},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}