?
An Algorithm to Satisfy the QoS Requirements in a Heterogeneous LoRaWAN Network
P. 1–6.
LoRaWAN is a popular low power wide area network technology widely used in many scenarios, such as environmental monitoring and smart cities. Different applications demand various quality of service (QoS), and their service within a single network requires special solutions for QoS provision. We consider the problem of QoS provision in heterogeneous LoRaWAN networks that consist of several groups of devices that require different packet loss rate (PLR). To solve this problem, we develop a mathematical model that can find the PLR distribution in a LoRaWAN network. With the model, we show that the PLR can vary significantly, and it is wrong to consider only the average PLR for the QoS provision. Finally, we develop an algorithm for assigning modulation and coding schemes to end-devices that provides PLRs below the required thresholds.
Kozlov A., Mikhail Shapovalov, Alexey Rolich et al., , in: 2023 XVIII International Symposium Problems of Redundancy in Information and Control Systems (REDUNDANCY).: IEEE, 2023. P. 183–188.
Added: November 4, 2023
Korolev N., Ilya Levitsky, Startsev I. et al., IEEE Access 2022 Vol. 10 P. 126339–126351
Native support for multi-link operation is a key novelty of the future Wi-Fi 7 technology defined by the IEEE 802.11be standard, which is currently under development. With the 6 GHz band recently granted for Wi-Fi operation, the novel multi-link feature enables simultaneous usage of multiple wide channels. Thus, it multiplies the capacity of Wi-Fi networks ...
Added: December 22, 2022
Ponomarenko-Timofeev A., Galinina O., Andrey Turlikov et al., , in: 31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020.: IEEE, 2020. Ch. 9217339 P. 1–6.
While optimizing the system-level performance in a network of advanced high-end wearables, millimeter-wave (mmWave) medium access protocols may benefit from leveraging the information on the spatial and temporal dynamics of the radio channel. In this paper, we aim to bridge the existing gap in mmWave on-body propagation studies by analyzing the channel structure based on ...
Added: October 31, 2022
Bankov D., Levchenko P. A., Lyakhov A. et al., Journal of Communications Technology and Electronics 2022 Vol. 67 No. 6 P. 747–754
The rapid growth of the Internet of Things gives rise to numerous Low Power Wide Area Network technologies, one of which, NB-Fi technology, has been approved as a Preliminary National Standard of the Russian Federation and is planned for wide application. However, the scientific literature contains very few studies of NB-Fi, and the investigation of ...
Added: June 27, 2022
Meissner D., Gokhberg L., Kuzminov Y. et al., , in: The Knowledge Triangle. Changing Higher Education and Research Management Paradigms.: Switzerland: Springer, 2021. Ch. 1 P. 3–15.
During the last decade, the concept of the Knowledge Triangle (KT) in the form of change processes that foster greater interaction between education, research and innovation activities has left the academic community and diffused to the higher education and research policy arena. As a result, numerous policy measures have been developed and implemented aiming at ...
Added: January 17, 2022
Khorov E., Krotov A., Lyakhov A. et al., IEEE Access 2019 Vol. 7 P. 127402–127415
IEEE 802.11ah, a new amendment to the Wi-Fi standard, adapts Wi-Fi networks to the emerging Internet of Things (IoT). A key component of .11ah is the Restricted Access Window (RAW), a new channel access mechanism, which reduces contention when even thousands of IoT devices operate in the same area by assigning them different channel times. ...
Added: November 27, 2021
Aanstad S., Benner M., Borlaug S. B. et al., Switzerland: Springer, 2021.
During the last decade, the concept of the Knowledge Triangle (KT) in the form of change processes that foster greater interaction between education, research and innovation activities has left the academic community and diffused to the higher education and research policy arena. As a result, numerous policy measures have been developed and implemented aiming at ...
Added: October 4, 2021
Воронцов О. Г., Журнал российского права 2017 № 2 (242) С. 110–119
The article deals with the problems of implementation of the principle of performance use of budgetary funds. The paper concludes that in the budget law theory there is no common understanding of the category «performance». The author analyzes the legal formulation of the principle of performance use of budgetary funds from the standpoint of external ...
Added: November 17, 2020
Вагин В. В., Gavrilova V., Финансовая аналитика: проблемы и решения 2017 Т. 10 № 12 С. 1393–1406
Цель статьи — разработка инструментария для проведения оценки программ и практик инициативного бюджетирования. На данном этапе развития механизмов участия граждан в совершенствовании общественной инфраструктуры поселений и решении вопросов местного значения этот вопрос становится все более актуальным. Применены анализ и классификация различных параметров реализации практик инициативного бюджетирования и вызываемых ими социальных и экономических изменений. Предложена логическая модель ...
Added: November 2, 2020
Stepanov S., Journal of Economic Behavior and Organization 2020 No. 179 P. 589–607
I study a career concerns model in which the principal receives information about the agent’s performance from an intermediary (evaluator). I show that, in general, a biased evaluator is ex-ante optimal for the principal. The ex-ante optimal bias solves the tradeoff between ex-post optimality of the principal’s decisions about the agent and incentive provision. It ...
Added: October 28, 2020
Loginov V., Lyakhov A., Ждановский В. Д., Информационные процессы 2020 Т. 20 № 3 С. 269–283
NR-U is a technology that allows fifth generation cellular networks to utilize unlicensed frequency bands, in particular, the 5 GHz band. In order to increase throughput, an NR-U base station (gNB) can operate at the same time in several frequency channels located within this band. However, a gNB can not always simultaneously transmit in one channel ...
Added: October 6, 2020
Bobkov I., Rolich A., Denisova M. et al., , in: 2020 Moscow Workshop on Electronic and Networking Technologies (MWENT).: IEEE, 2020. P. 1–6.
LoRa wireless network has become a widely spread technology among IoT systems recently. LoRa allows to use various ISM bands such as 433 MHz, 868 MHz and 915 MHz. During this study 433 MHz and 868 MHz frequencies have been compared. Parameters such as SNR and RSSI were measured at different floors and visualized. A ...
Added: May 7, 2020
Agarkov A., Semenov A., , in: Proceedings of the 3rd Ural Workshop on Parallel, Distributed, and Cloud Computing for Young ScientistsVol. 1990: Proceedings of the 3rd Ural Workshop on Parallel, Distributed, and Cloud Computing for Young Scientists.: CEUR Workshop Proceedings, 2017. P. 92–101.
In this paper we consider an association problem with constraints for two dynamically enlarging tables. We consider a base full association algorithm and propose a partial association algorithm that improves efficiency of the base algorithm. We implement and evaluate the algorithms in Apache Spark for a particular case on the cluster with Angara interconnect. ...
Added: October 30, 2019
Mazeev A., Semenov A., Dmitry D. et al., , in: Proceedings of the 3rd Ural Workshop on Parallel, Distributed, and Cloud Computing for Young ScientistsVol. 1990: Proceedings of the 3rd Ural Workshop on Parallel, Distributed, and Cloud Computing for Young Scientists.: CEUR Workshop Proceedings, 2017. P. 84–91.
Apache Spark is one of the most popular Big Data frameworks. Performance evaluation of Big Data frameworks is a topic of interest due to the increasing number and importance of data analytics applications within the context of HPC and Big Data convergence. In the paper we present early performance evaluation of a typical supervised graph ...
Added: October 30, 2019
Lysogor I., Voskov L., Rolich A. et al., , in: 2019 International Siberian Conference on Control and Communications (SIBCON). Proceedings.: Tomsk: Tomsk State University of Control Systems and Radioelectronics (TUSUR), 2019. P. 1–6.
The paper reviewed and analyzed protocols, technologies for transferring and presenting IoT data, developed a model of a heterogeneous IoT network for hard-to-reach areas, proposed a method to improve the efficiency of data transfer in a heterogeneous IoT network. As a result of the work, a model of using the Internet of Things technology (LPWAN) ...
Added: July 11, 2019
Semenov A., Mazeev A., Dmitry D. et al., Lobachevskii Journal of Mathematics 2018 Vol. 39 No. 9 P. 1262–1269
The graph anomaly detection problem occurs in many application areas and can be solved by spotting outliers in unstructured collections of multi-dimensional data points, which can be obtained by graph analysis algorithms. We implement the algorithm for the small community analysis and the approximate LOF algorithm based on Locality-Sensitive Hashing, apply the algorithms to a ...
Added: June 10, 2019
Bankov D., Khorov E., Lyakhov A., , in: 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).: IEEE, 2017. P. 1–5.
LoRaWAN is a promising low power long range wireless communications technology for the Internet of Things. An important feature of LoRaWAN gateways is related to so-called capture effect: under some conditions the gateway may correctly receive a frame even if it overlaps with other ones. In this paper, we develop a pioneering mathematical model of ...
Added: October 9, 2018
Ometov A., Orsino A., Militano L. et al., IEEE Wireless Communications 2016 Vol. 23 No. 4 P. 103–111
Driven by the unprecedented increase of mobile data traffic, D2D communications technology is rapidly moving into the mainstream of the 5G networking landscape. While D2D connectivity originally emerged as a technology enabler for public safety services, it is likely to remain at the heart of the 5G ecosystem by spawning a wide diversity of proximate ...
Added: March 13, 2018
Ometov A., Orsino A., Militano L. et al., Computer Networks 2016 No. 107 P. 327–338
Device-to-device (D2D) communication is one of the most promising innovations in the next-generation wireless ecosystem, which improves the degrees of spatial reuse and creates novel social opportunities for users in proximity. As standardization behind network-assisted D2D technology takes shape, it becomes clear that security of direct connectivity is one of the key concerns on the ...
Added: March 13, 2018