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Кучерявый Евгений Андреевич

Научно-исследовательский институт телекоммуникаций

Профиль на hse.ru ↗ тел.: +7 (495) 772-95-90 | 55136
Публикаций
82
Языков
1
Наград
5
Конференций
0
Профиль Публикации (82) Курсы (4)

Профессиональные интересы

Беспроводные сети 5/6GЦифровые двойники систем и сетей связиAI/ML в телекомемоделирование сетей связиультрамалые задержки URLLCWiFi

Должности

  • ДиректорНаучно-исследовательский институт телекоммуникаций
  • ПрофессорМосковский институт электроники и математики им. А.Н. Тихонова, Департамент электронной инженерии
  • Главный научный сотрудникМосковский институт электроники и математики им. А.Н. Тихонова, Департамент электронной инженерии
  • Академический руководитель образовательной программыТехнологии искусственного интеллекта в телекоммуникациях
  • Руководитель программы повышения квалификацииСтандарты 5G/5G. Продвинутый уровень

Био

  • · Начал работать в НИУ ВШЭ в 2014 году.
  • · Научно-педагогический стаж: 35 лет.

Образование

  • 2018 · Доктор наук: Московский технический университет связи и информатики, тема диссертации: "Разработка и исследование комплекса моделей и методов распределения ресурсов в беспроводных гетерогенных сетях связи"
  • 2005 · PhD: Технологический университет Тампере
  • 1999 · Кандидат наук: тема диссертации: Исследование вероятностно-временных характеристик механизмов управления мультимедийной нагрузкой в сетях АТМ
  • 1997 · Специалитет: Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича, специальность «Программное обеспечение вычислительной техники и автоматизированных систем», квалификация «Инженер»

Награды и поощрения

  • · Почетная грамота НИУ ВШЭ (сентябрь 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, 2021–2022)
  • · Надбавка за статью в зарубежном рецензируемом журнале (2015–2017)
  • · Лучший преподаватель — 2018

Гранты и проекты

  • · на соискание учёной степени кандидата наук

Идентификаторы исследователя

Публикации (82)

Перспективы использования технологии D2D в сотовых сетях

2019 · ARTICLE · ru

Повсеместные исследования в области беспроводной связи предлагают огромный спектр технологических инструментов для потенциального натурного моделирования и интеграции. Одно из перспективных направлений в данной области – применение прямых соединений между мобильными узлами в географической близости (D2D). В статье проанализированы коммуникационные сценарии, возникающие в сетях связи пятого поколения с использованием прямых D2D соединений между пользовательскими мобильными узлами. Предложен метод кластеризации мобильных узлов в физической и социальной близости. Проведено численное исследование задержек, агрегированного трафика и вероятности разрыва сессии для выявления эффектов, связанных с применением прямых соединений в сетях пятого поколения 5G. Показаны преимущества по сравнению с использованием классических инфраструктурных решений в случаях неполного сотового покрытия.

Socially Inspired Relaying and Proactive Mode Selection in mmWave Vehicular Communications

2019 · ARTICLE · en

As the Internet of Vehicles matures and acquires its social flavor, novel wireless connectivity enablers are being demanded for reliable data transfer in high-rate applications. The recently ratified New Radio communications technology operates in millimeter-wave (mmWave) spectrum bands and offers sufficient capacity for bandwidth-hungry services. However, seamless operation over mmWave is difficult to maintain on the move, since such extremely high frequency radio links are susceptible to unexpected blockage by various obstacles, including vehicle bodies. As a result, proactive mode selection, that is, migration from infrastructure- to vehicle-based connections and back, is becoming vital to avoid blockage situations. Fortunately, the very social structure of interactions between the neighboring smart cars and their passengers may be leveraged to improve session continuity by relaying data via proximate vehicles. This paper conceptualizes the socially inspired relaying scenarios, conducts underlying mathematical analysis, continues with a detailed 3-D modeling to facilitate proactive mode selection, and concludes by discussing a practical prototype of a vehicular mmWave platform.

Аналитическая модель беспроводных сетей технологии IEEE 802.11ah

2018 · ARTICLE · ru

Рассмотрен протокол связи IEEE 802.11ah, применимый к централизованным сетям, имеющим большое число автономных узлов (до 6000) и функционирующим на сравнительно больших расстояниях (до 1 км). Трафик в сетях подобного типа является ненасыщенным из-за невысокой интенсивности входного потока на узел, что является проблемой с точки зрения анализа вероятностно-временных характеристик из-за трудоемкости моделирования. В данной работе представлен обзор основных компонентов технологии IEEE 802.11ah, а также разработана аналитическая модель на основе Марковской сети для исследования пропускной способности и энергоэффективности при высоком числе устройств в условиях низкой интенсив- ности входного потока. Разработанная модель может применяться при планировании беспроводных сетей городского типа, используемых в основном для сбора информации при мониторинге в промышленности, в интеллектуальных транспортных системах и Интернете Вещей.

Analytical approximations for interference and SIR densities in terahertz systems with atmospheric absorption, directional antennas and blocking

2018 · ARTICLE · en

Researchers face fundamental challenges applying the stochastic geometry framework to analysis of terahertz (THz) communications systems. The two major problems are the principally new propagation model that now includes exponential term responsible for molecular absorption and blocking of THz radiation by the human crowd around the receiver. These phenomena change the probability density function (pdf) of the interference from a single node such that it no longer has an analytical Laplace transform (LT) preventing characterization of the aggregated interference and signal-to-interference ratio (SIR) distributions. The expected use of highly directional antennas at both transmitter and receiver adds to this problem increasing the complexity of modeling efforts. In this paper, we consider Poisson deployment of interferers in ℜ 2 and provide accurate analytical approximations for pdf of interference from a randomly chosen node for blocking and non-blocking cases. We then derive LTs of pdfs of aggregated interference and SIR. Using the Talbot’s algorithm for inverse transform we provide numerical results indicating that failure to capture atmospheric absorption, blocking or antenna directivity leads to significant modeling errors. Finally, we investigate the response of SIR densities to a wide range of system parameters highlighting the specific effects of THz communications systems. The model developed in this paper can be used as a building block for performance analysis of realistic THz network deployments providing metrics such as outage and coverage probabilities.

Safe, Secure Executions at the Network Edge: Coordinating Cloud, Edge, and Fog Computing

2018 · ARTICLE · en

System design where cyber-physical applications are securely coordinated from the cloud may simplify the development process. However, all private data are then pushed to these remote “swamps,” and human users lose actual control as compared to when the applications are executed directly on their devices. At the same time, computing at the network edge is still lacking support for such straightforward multidevice development, which is essential for a wide range of dynamic cyber-physical services. This article proposes a novel programming model as well as contributes the associated secure-connectivity framework for leveraging safe coordinated device proximity as an additional degree of freedom between the remote cloud and the safety-critical network edge, especially under uncertain environment constraints. This article is part of a special issue on Software Safety and Security Risk Mitigation in Cyber-physical Systems.

Upper bound on capacity of 5G mmWave cellular with multi-connectivity capabilities

2018 · ARTICLE · en

Outage events caused by dynamic blockage of a radio signal propagation path are one of the key challenges in 5G millimetre-wave (mmWave) cellular networks. To mitigate them, Third Generation Partnership Project standardisation has recently ratified multi-connectivity techniques aiming to enable user connectivity to several base stations simultaneously, while switching between them whenever the currently active connection becomes blocked. A closed-form upper bound on the probability density function of the respective system capacity in a random field of moving blockers is obtained.

Delivering Fairness and QoS Guarantees for LTE/Wi-Fi Coexistence Under LAA Operation

2018 · ARTICLE · en

Licensed assisted access (LAA) enables the coexistence of long-term evolution (LTE) and WiFi in unlicensed bands, while potentially offering improved coverage and data rates. However, cooperation with the conventional random-access protocols that employ listen-before-talk (LBT) considerations makes meeting the LTE performance requirements difficult, since delay and throughput guarantees should be delivered. In this paper, we propose a novel channel sharing mechanism for the LAA system that is capable of simultaneously providing the fairness of resource allocation across the competing LTE and Wi-Fi sessions as well as satisfying the quality-of-service guarantees of the LTE sessions in terms of their upper delay bound and throughput. Our proposal is based on two key mechanisms: 1) LAA connection admission control for the LTE sessions and 2) adaptive duty cycle resource division. The only external information necessary for the intended operation is the current number of active Wi-Fi sessions inferred by monitoring the shared channel. In the proposed scheme, LAA-enabled LTE base station fully controls the shared environment by dynamically adjusting the time allocations for both Wi-Fi and LTE technologies, while only admitting those LTE connections that should not interfere with Wi-Fi more than another Wi-Fi access point operating on the same channel would. To characterize the key performance trade-offs pertaining to the proposed operation, we develop a new analytical model. We then comprehensively investigate the performance of the developed channel sharing mechanism by confirming that it allows to achieve a high degree of fairness between the LTE and Wi-Fi connections as well as provides guarantees in terms of upper delay bound and throughput for the admitted LTE sessions. We also demonstrate that our scheme outperforms a typical LBT-based LAA implementation

Interference and SINR in millimeter wave and terahertz communication systems with blocking and directional antennas

2017 · ARTICLE · en

The fifth generation wireless systems are expected to rely on a large number of small cells to massively offload traffic from the cellular and even from the wireless local area networks. To enable this functionality, mm-wave (EHF) and Terahertz (THF) bands are being actively explored. These bands are characterized by unique propagation properties compared with microwave systems. As a result, the interference structure in these systems could be principally different to what we observed so far at lower frequencies. In this paper, using the tools of stochastic geometry, we study the systems operating in the EHF/THF bands by explicitly capturing three phenomena inherent for these frequencies: 1) high directivity of the transmit and receive antennas; 2) molecular absorption; and 3) blocking of high-frequency radiation. We also define and compare two different antenna radiation pattern models. The metrics of interest are the mean interference and the signal-to-interference-plus-noise (SINR) ratio at the receiver. Our results reveal that: 1) for the same total emitted energy by a Poisson field of interferers, both the interference and SINR significantly increase when simultaneously both transmit and receive antennas are directive and 2) blocking has a profound impact on the interference and SINR creating much more favorable conditions for communications compared with no blocking case.

Microfluidic System Protocols for Integrated On-Chip Communications and Cooling

2017 · ARTICLE · en

The advancements in multi-core central processing units have attracted new designs ranging from mechanisms of packing higher number of transistors into the small space, new techniques for communications (e.g., wireless network on chips), or new methodologies for cooling the chip. The latter two design aspects are the focus of this paper, where a microfluidic system is utilized for performing both functions. The miniaturization of microfluidic channels makes it attractive to embed them into the chips to transport fluids that can remove the heat from the processor cores. The extension of the cooling purpose of on-chip microfluidic channels is done by integrating communication feature. The communication process is achieved by transporting fluid through the channel and injecting information through air droplets. Protocols for microfluidic communications are applied, including physical layer functionalities and medium access protocols. The protocol design takes into considerations various properties of the microfludics. Based on the proposed system, the tradeoffs between the data rate and its impact on the amount of heat that can be removed from the processor are evaluated. This system provides new forms of condensed processor design of the future, in which integration of multiple functionalities of microfluidic channel system embedded into multi-core processors.

Terahertz Band Intra-Chip Communications: Can Wireless Links Scale Modern x86 CPUs?

2017 · ARTICLE · en

Massive multi-core processing has recently attracted significant attention from the research community as one of the feasible solutions to satisfy constantly growing performance demands. However, this evolution path is nowadays hampered by the complexity and limited scalability of bus-oriented intra- chip communications infrastructure.The latest advantages of terahertz (THz) band wireless communications providing extraordinary capacity at the air interface offer a promising alternative to conventional wired solutions for intra-chip communications. Still, to invest resources in this field manufacturers need a clear vision of what are the performance and scalability gains of wireless intra-chip communications. Using the comprehensive hybrid methodology combining THz ray-tracing, direct CPU traffic measurements, and cycle-accurate CPU simulations, we perform the scalability study of x86 CPU design that is backward compatible with the current x86 architecture. We show that preserving the current cache coherence protocols mapped into the star wireless communications topology that allows for tight centralized medium access control a few hundreds of active cores can be efficiently supported without any notable changes in the x86 CPU logic. This important outcome allows for incremental development, where THz-assisted x86 CPU with a few dozens of cores can serve as an intermediate solution, while the truly massive multi-core system with broadcast-enabled medium access and enhanced cache coherence protocols can be an ultimate goal.

Курсы (4)