Philipp Schulz

ORCID: 0000-0002-0738-556X
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About
Contact & Profiles
Research Areas
  • Advanced MIMO Systems Optimization
  • Millimeter-Wave Propagation and Modeling
  • Cooperative Communication and Network Coding
  • Advanced Wireless Network Optimization
  • Indoor and Outdoor Localization Technologies
  • Telecommunications and Broadcasting Technologies
  • Speech and Audio Processing
  • Wireless Communication Security Techniques
  • Infrared Target Detection Methodologies
  • IoT Networks and Protocols
  • Wireless Networks and Protocols
  • Microwave Engineering and Waveguides
  • Network Traffic and Congestion Control
  • Advancements in Semiconductor Devices and Circuit Design
  • Age of Information Optimization
  • Wireless Communication Networks Research
  • Advanced Wireless Communication Technologies
  • Network Time Synchronization Technologies
  • Smart Grid Security and Resilience
  • Blind Source Separation Techniques
  • Advanced Adaptive Filtering Techniques
  • Wireless Body Area Networks
  • Energy Harvesting in Wireless Networks
  • Distributed Sensor Networks and Detection Algorithms
  • PAPR reduction in OFDM

Vodafone (Germany)
2017-2025

Technische Universität Dresden
2017-2022

Barkhausen Institute
2019-2022

International Computer Science Institute
2019

Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2018

Next generation mobile networks not only envision enhancing the traditional MBB use case but also aim to meet requirements of new cases, such as IoT. This article focuses on latency critical IoT applications and analyzes their requirements. We discuss design challenges propose solutions for radio interface network architecture fulfill these requirements, which mainly benefit from flexibility service-centric approaches. The discusses business opportunities through connectivity enabled by...

10.1109/mcom.2017.1600435cm article EN IEEE Communications Magazine 2017-02-01

Next-generation wireless communication networks will benefit from beamforming gain to utilize higher bandwidths at millimeter wave (mmWave) and terahertz (THz) bands. For high directional gain, a beam management (BM) framework acquires tracks optimal downlink uplink pairs through exhaustive scan. However, for narrower beams carrier frequencies this leads huge measurement overhead that negatively impacts the acquisition tracking. Moreover, volatility of mmWave THz channels, user random...

10.1109/access.2023.3242582 article EN cc-by IEEE Access 2023-01-01

Multi-connectivity (MCo) is considered to be a key strategy for enabling reliable transmissions and enhanced data rates in fifth-generation mobile networks, as it provides multiple links from source destination. In this work, we quantify the communication performance of MCo terms outage probability throughput. For doing so, establish simple, yet accurate analytical framework at high signal-to-noise ratio (SNR), which number links, spectral efficiency, path loss, SNR are incorporated, giving...

10.1109/tcomm.2018.2873648 article EN IEEE Transactions on Communications 2018-10-04

As one of the promising intelligent transportation frameworks, vehicular platooning has potential to bring about sustainable and efficient mobility solutions. One challenges in development is maintaining string stability, which ensures that there no amplification signal interest along platoon chain. String stability dependent on reliable inter-vehicle communications proper controller design. Therefore, this paper, we formulate a radio resource management (RRM) problem with purpose satisfying...

10.1109/ojcoms.2024.3380509 article EN cc-by-nc-nd IEEE Open Journal of the Communications Society 2024-01-01

Machine learning (ML) for fifth generation (5G)-Advanced air interface is currently being studied by the 3rd Generation Partnership Project (3GPP), where millimeter-wave (mmWave) beam prediction an important use case. Thereby targets are to reduce reference signal (RS) overhead, latency, and power consumption, which imperative frequent measurements. To this end, a low-complexity ML design presented, that exploits spatial correlation between qualities expedite spatial-domain prediction....

10.1109/lwc.2024.3381447 article EN cc-by IEEE Wireless Communications Letters 2024-03-26

Ultra-Reliable Low-Latency Communications (URLLC) are considered as one of the key services upcoming fifth generation (5G) wireless communications systems. Enabling URLLC is especially challenging due to strict requirements in terms latency and reliability. Multi-connectivity a powerful approach increase However, most current research restricted single-user scenarios, neglecting challenges multi-cellular, multi-user systems, i.e., interference competition for limited resources. In this...

10.1109/tcomm.2020.2995150 article EN IEEE Transactions on Communications 2020-05-19

Although frequency range 2 (FR2) systems are an essential part of 5G-Advanced and future 3GPP releases, the mobility performance multi-panel user equipment (MPUE) with hand blockage is still area open for research standardization. In this article, a comprehensive study on MPUE performed conditional handover (CHO) its potential enhancement denoted by fast (FCHO). contrast to CHO, in FCHO can reuse earlier target cell preparations after each autonomously execute subsequent handovers. This...

10.1109/access.2023.3260630 article EN cc-by-nc-nd IEEE Access 2023-01-01

10.1109/wcnc61545.2025.10978831 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2025-03-24

The fifth generation (5G) of mobile networks is envisioned to support new applications having demanding requirements, such as low latency and high reliability, which the focus this article along with enhanced traditional broadband massive sensing. Different approaches have already been proposed achieve while guaranteeing reliability. However, challenge efficient resource utilization remains. In article, concepts for a flexible low-latency-enabling network architecture are presented,...

10.1109/mvt.2019.2904185 article EN IEEE Vehicular Technology Magazine 2019-04-25

The channel impulse response (CIR)-based localization requires estimating the path delays at a certain position. Several state-of-the-art (SoA) approaches have been proposed to estimate based on eigendecomposition. However, they are limited by assumption of uncorrelated paths, which is not accurate in context localization. attempt mitigate rank deficits problem means frequency smoothing (FS) considerable amount measurements different center frequencies. Another solution with single snapshot...

10.1109/wcnc51071.2022.9771756 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2022-04-10

Conditional handover (CHO) is a state-of-the-art 3GPP mechanism used in 5G networks. Although it improves mobility robustness by reducing failures, the decoupling of preparation and execution phases CHO significantly increases signaling overhead. For 5G-Advanced networks, fast (FCHO) recent proposal that offers practical solution whereby user equipment (UE) can reuse earlier target cell preparations after each to autonomously execute subsequent handovers. This saves overhead associated with...

10.1109/pimrc54779.2022.9977719 article EN 2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2022-09-12

Frequency Range 2 (FR2) has become an integral part of 5G networks to fulfill the ever increasing demand for user data throughput. However, radio signals in FR2 experience high path and diffraction loss mobile environments. To address this issue, multi-panel equipment (MPUE) is adopted whereby multiple antenna panels are placed on UE body leverage gains from directivity. In contrast traditional UEs with isotropic radiation patterns, signal measurements cells network may not be available all...

10.1109/vtc2022-spring54318.2022.9860378 article EN 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring) 2022-06-01

This work presents an investigation on the scalability of a deep leaning (DL)-based blind transmitter positioning system for addressing multi localization (MLT) problem. The proposed approach is able to estimate relative coordinates non-cooperative active transmitters based solely received signal strength measurements collected by wireless sensor network. A performance comparison with two other solutions MLT problem are presented demonstrating benefits respect DL approach. Our aims at...

10.1109/wcnc55385.2023.10119115 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2023-03-01

Resource allocation has always been a challenging task in vehicular networks due to their dynamic nature. In this paper, we study the decentralized joint subchannel and power control problem for Cooperative Adaptive Cruise Control (CACC) system satisfy string stability platoon of connected autonomous vehicles. The developed optimization takes as well reliability all Vehicle (V2V) links into account, aiming at maximizing total ergodic capacity. We tackle from two different angles. first...

10.1109/icc45041.2023.10279834 article EN ICC 2022 - IEEE International Conference on Communications 2023-05-28

Wireless closed-loop control is of major significance for future industrial manufacturing. However, applications pose stringent quality service requirements reliable operation. Contrary to traditional ultra-reliable low-latency communications design goals such as low packet loss rates and latency, research results in the domain networked systems (NCS) state that depending on sampling period, inherently tolerate a few consecutive losses. This translates into better-suited metric capture...

10.1109/tcomm.2021.3095953 article EN cc-by IEEE Transactions on Communications 2021-07-09

Multi-connectivity is considered to be key for enabling reliable transmissions in future wireless networks. Transmission reliability depends on the used combining algorithm such as joint decoding (JD), maximum selection (MSC), and ratio (MRC). To compare performance of these algorithms we derive their outage probabilities based distributed source coding. The probability analytically described depending number links, modulation scheme, code rate, received signal-to-noise-ratios (SNR). We show...

10.1109/glocom.2017.8254232 article EN GLOBECOM 2022 - 2022 IEEE Global Communications Conference 2017-12-01

With the fifth generation (5G) of mobile networks challenging field ultra-reliable low latency communications (URLLC) is envisioned. In this area research, reliability requirements are commonly formulated only in terms packet loss rates. However, sparse can usually be tolerated by an application. Furthermore, and availability loosely defined not sufficiently separated wireless field. This paper applies fundamental metrics from dependability theory to communications, providing more powerful...

10.1109/globecom38437.2019.9013362 article EN 2015 IEEE Global Communications Conference (GLOBECOM) 2019-12-01

High-resolution and accurate path delay estimation (PDE) is a prerequisite for channel impulse response (CIR)-based localization. Several superresolution (SPDE) algorithms are proposed to provide precise estimates while utilizing limited bandwidth. Moreover, multi-band SPDE enables the combination of frequency resources on non-consecutive bands. However, such may result in hidden ambiguity problem related matrix structure underlying channel. In this paper, we propose flexible PDE that...

10.1109/iccworkshops57953.2023.10283645 article EN 2022 IEEE International Conference on Communications Workshops (ICC Workshops) 2023-05-28

Addressing the key issues of WiFi OFDMA uplink transmissions, especially in terms real-time responsiveness, is a vital concern for contemporary industrial scenarios. The challenges include rigid resource allocation and an inability to cater varied user requirements effectively. This paper presents advanced OFDMA-based random access scheme, specifically tailored enhance performance optimize responsiveness wireless networks. At heart our scheme implementation unique association identifiers...

10.1109/vtc2023-fall60731.2023.10333757 article EN 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall) 2023-10-10

Cellular network performance is predominantly driven by the spatial distribution of data traffic demand. We investigate spatio-temporal correlation between mobile and spatially resolved information obtained from Twitter. The stems centers two European cities largely independent user device type wireless technology. observe a high temporal moderate to correlation. In order assess actual suitability Twitter as input for self-organizing networks, we make use queuing-theoretic evaluation tool...

10.1109/wcnc.2017.7925565 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2017-03-01

Multi-connectivity is considered to be key for enabling reliable transmissions and enhancing data rates in future wireless networks. In this work, we quantify the communication performance by outage probability system throughput. We establish a remarkably simple, yet accurate analytical framework based on joint decoding describe throughput depending number of links, modulation scheme, code rate, bandwidth, received signal-to-noise ratio. To investigate tradeoff between define two modes...

10.1109/wcnc.2018.8377025 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2018-04-01

Due to the great flexibility and innate simplicity of wireless networks, many applications are now realized with connectivity at their core. Countless novel enabled this way legacy transferred mobile networks reap same benefits. As evolve, becoming ever more demanding, particularly respect high reliability low latency. A common achieve in communications is adding redundant communication channels by means multi-connectivity. This comes cost additional radio resources that could have been used...

10.1109/twc.2021.3069669 article EN publisher-specific-oa IEEE Transactions on Wireless Communications 2021-04-06
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