Хоров Евгений Михайлович
Московский институт электроники и математики им. А.Н. Тихонова
Профессиональные интересы
Должности
- Профессор — Московский институт электроники и математики им. А.Н. Тихонова, Кафедра информационной безопасности киберфизических систем
- Заведующий лабораторией — Московский институт электроники и математики им. А.Н. Тихонова, Научно-учебная лаборатория телекоммуникационных систем
Био
- · Начал работать в НИУ ВШЭ в 2017 году.
- · Научно-педагогический стаж: 17 лет.
Образование
- 2022 · Доктор наук: Московский физико-технический институт
- 2013 · Кандидат наук: специальность 05.12.13 «Системы, сети и устройства телекоммуникаций»
- 2010 · Магистратура: Московский физико-технический институт, специальность «Прикладные математика и физика», квалификация «Магистр прикладной математики и физики»
- 2008 · Бакалавриат: Московский физико-технический институт, специальность «Прикладная математика и физика», квалификация «Бакалавр прикладной математики и физики»
Опыт работы
- · 2017: наст. время: Заведующий лабораторией телекоммуникационных систем, Национальный исследовательский университет Высшая школа экономики
- · 2008: наст. время: Заведующий лабораторией беспроводных сетей (ранее: старший научный сотрудник, научный сотрудник, младший научный сотрудник), Институт проблем передачи информации им. А.А. Харкевича РАН
- · 2012: наст. время: Заместитель заведующего кафедрой, доцент (ранее: ассистент) Московский физико-технический институт
- · 2017: наст. время: доцент, Московский университет
- · 2016 – 2017: : Заместитель заведующего лабораторией Интернета вещей (ранее: cтарший научный сотрудник), Cколковский институт науки и технологий
Награды и поощрения
- · Благодарность НИУ ВШЭ (март 2024)
- · Надбавка за публикацию в журнале из Списка А (и приравненном к нему научном издании) (2025–2026, 2024–2025, 2023–2024)
- · Надбавка за публикацию в международном рецензируемом научном издании (2022–2023)
Гранты и проекты
- — · на соискание учёной степени кандидата наук
Конференции (2)
Показать все
- · 2022: 2022 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) (София). Доклад: Providing High Capacity for AR/VR traffic in 5G Systems with Multi-Connectivity
- · 2021: Infocom. Доклад: SDR-based Testbed for Real-time CQI Prediction for URLLC
Идентификаторы исследователя
- ORCID:
0000-0001-5541-4671 - ResearcherID:
AAF-2331-2019 - SPIN РИНЦ:
3767-1086 - Google Scholar: https://scholar.google.ru/citations?user=Nbk2qQcAAAAJ
- Scopus AuthorID:
34869950000
Публикации (153)
Rate Control with Spatial Reuse for Wi-Fi 6 Dense Deployments
2020 · ARTICLE · en
To improve the performance of Wi-Fi networks in dense deployments, the recent IEEE 802.11ax standard introduces a palette of features improving spatial reuse. A key property of these features is dynamic changes in transmit power and the interference from the neighboring devices. The paper explains the basic operation of spatial reuse features and shows that their efficiency significantly depends on how the stations select appropriate modulation and coding schemes taking into account the variable transmission conditions. Nevertheless, the majority of existing studies in the literature leave this effect out of consideration, assuming an ideal rate control algorithm and obtaining wrong results. The paper fills this gap and presents a novel statistics-based rate control algorithm that selects modulation and coding schemes taking into account the effects induced by the recent spatial reuse features. With extensive simulation, it is shown that the algorithm significantly outperforms the existing rate control algorithms, providing up to 50% higher goodput and three times lower latencies.
Resource Allocation for Machine-Type Communication of Energy-Harvesting Devices in Wi-Fi HaLow Networks
2020 · ARTICLE · en
The recent Wi-Fi HaLow technology focuses on adopting Wi-Fi for the needs of the Internet of Things. A key feature of Wi-Fi HaLow is the Restricted Access Window (RAW) mechanism that allows an access point to divide the sensors into groups and to assign each group to an exclusively reserved time interval where only the stations of a particular group can transmit. In this work, we study how to optimally configure RAW in a scenario with a high number of energy harvesting sensor devices. For such a scenario, we consider a problem of device grouping and develop a model of data transmission, which takes into account the peculiarities of channel access and the fact that the devices can run out of energy within the allocated intervals. We show how to use the developed model in order to determine the optimal duration of RAW intervals and the optimal number of groups that provide the required probability of data delivery and minimize the amount of consumed channel resources. The numerical results show that the optimal RAW configuration can reduce the amount of consumed channel resources by almost 50%.
Super Fast Link Set-up in Wi-Fi HaLow Networks
2020 · ARTICLE · en
In Wi-Fi HaLow networks, sensors can transmit data only after the link set-up procedure (LSP). After a power outage or when a swarm of sensors appears in an Internet of Things network, all of them contend for the channel to set up links with the access point. For thousands of sensors the LSP can last for hours. However, it can be shortened with advanced LSP coordination algorithms. We show that the best standard-compatible solution found in the literature leaves a gap between the achievable link set-up time and the estimated lower bound. In this paper, we design and evaluate an adaptive solution to control the LSP that fills in this room for improvement and provides significant gains against the existing algorithms.
Performance Evaluation of TCP Data Transmission in 5G mmWave Networks
2020 · ARTICLE · en
Fifth generation (5G) networks should use millimeter-wave (mmWave) frequencies to provide high data transmission rate. However, the performance of such networks significantly suffers from the Transmission Control Protocol (TCP) used by various applications for data transmission. In this article, it is shown that the data download rate in 5G networks is much lower than the capacity of the mmWave link because of the Slow Start algorithm used in the TCP. We analyze various approaches to the problem and propose to use the xStream platform for adjusting TCP parameters. This approach significantly increases the download rate and does not require any changes to the software of client devices, which simplifies the implementation of the proposed approach in real systems.
Dynamic Multiplexing of URLLC Traffic and eMBB Traffic in an Uplink Using Nonorthogonal Multiple Access
2020 · ARTICLE · en
The problem of uplink multiplexing of two different types of traffic specific to 5G networks (enhanced Mobile Broadband traffic (eMBB) and Ultra-Reliable Low-Latency Communications (URLLC)) is considered. A dynamic multiplexing scheme based on the use of the nonorthogonal multiple access is proposed. An analytical model is developed to estimate the network performance using the proposed scheme, as well as to select its optimal parameters in order to maximize the network capacity for eMBB traffic while fulfilling the quality of service requirements for URLLC traffic.
Flexible Multiplexing of Grant-Free URLLC and eMBB in Uplink
2020 · CHAPTER · en
The fifth-generation wireless systems shall serve the traffic of various applications that impose different Quality of Service (QoS) requirements. An important problem is how to efficiently multiplex flows with different QoS requirements having a limited amount of channel resources. In this paper, we study the problem of multiplexing enhanced Mobile Broadband (eMBB) traffic and Ultra-Reliable Low-Latency Communications (URLLC) traffic in the uplink channel. While the eMBB traffic is served with scheduled (grant-based) access to maximize throughput, the URLLC traffic is served with grant-free access to satisfy strict latency requirement. We propose a novel flexible scheme for eMBB/URLLC multiplexing that is based on non-orthogonal multiple access. As a part of this scheme, we develop scheduling and power allocation algorithm for eMBB users that takes into account the constraints imposed by grant-free URLLC transmissions. With simulations, we compare the performance of the proposed scheme with the existing ones and show that our scheme increases throughput for the eMBB users while satisfying strict QoS requirements for the URLLC users. Additionally, we demonstrate that the proposed scheme significantly reduces the protocol overhead induced by reconfiguration of grant-free URLLC transmissions, which is very important in case of mobile URLLC users.
An Algorithm to Satisfy the QoS Requirements in a Heterogeneous LoRaWAN Network
2020 · CHAPTER · en
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.
Tuning Channel Access to Enable Real-Time Applications in Wi-Fi 7
2020 · CHAPTER · en
Real-Time Applications (RTA) are among the most important use cases for future Wi-Fi 7, defined by the IEEE 802.11be standard. This paper studies two backward-compatible channel access approaches to satisfy the strict quality of service (QoS) requirements of RTA on the transmission latency and packet loss rate that have been considered in the 802.11be Task Group. The first approach is based on limiting the transmission duration of non-RTA frames in the network. The second approach is based on preliminary channel access to ensure the timely delivery of RTA frames. With the developed mathematical model of these approaches, it is shown that both of them can satisfy the RTA QoS requirements. At the same time, the preliminary channel access provides up to 60% higher efficiency of the channel usage by the non-RTA traffic in scenarios with very strict RTA QoS requirements or with low intensity of the RTA traffic.
Resource Allocation Strategies for Real-Time Applications in Wi-Fi 7
2020 · CHAPTER · en
In 2019 IEEE 802 LAN/MAN Standards Committee started the development of the next major amendment of the Wi-Fi standard: the IEEE 802.11be, also known as Wi-Fi 7. This new amendment will introduce many new functions and will improve the existing ones that will make Wi-Fi more efficient in many new scenarios. One of the scenarios is the service of Real-Time Applications with strict requirements on latency and reliability of communications. Providing low latencies can be challenging in Wi-Fi because of the unlicensed spectrum and related interference from neighboring devices. In this paper, we consider the usage of OFDMA transmissions for Real-Time Applications and design resource allocation algorithms that can provide the required latency and reliability in the presence of interference.
Prototyping and Experimental Study of Non-Orthogonal Multiple Access in Wi-Fi Networks
2020 · ARTICLE · en
NOMA is a promising way to increase spectral efficiency recently discussed in the IEEE 802.11 Working Group that develops WiFi standards. NOMA can be very beneficial in a WiFi network where the qualities of the channel between the access point and associated stations are significantly different. In such scenarios, NOMA allows the access point to transmit several data streams to various stations in parallel using one antenna and the same time-frequency resources. This article presents and evaluates the first-ever prototype of a WiFi device supporting NOMA, implemented in a software-defined radio platform. The prototype is backward compatible with legacy WiFi versions. Specifically, one of the multiplexed streams may be received by a legacy station not supporting NOMA. This feature is favorable for heterogeneous deployments with various generations of WiFi devices. This article provides a detailed description of the prototype as well as experimental results showing from 37 percent to 100 percent gain achieved by including NOMA in the future 802.11 standards.
Курсы (3)
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Systems and Networks of Information Transfer · 3 раза
2025/2026, 2024/2025, 2023/2024 · Бакалавриат · Анг
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Проектный семинар
2022/2023 · Бакалавриат · рус
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Основы технологии Wi-Fi
2021/2022 · Магистратура · рус