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Optimization-Based Phase-Shift Codebook Design for Large IRSs
Walid R. Ghanem;Vahid Jamali;Malte Schellmann;Hanwen Cao;Joseph Eichinger;Robert Schober
IEEE Communications Letters
Cited by: Papers (8)
In this letter, we focus on large intelligent reflecting surfaces (IRSs) and propose a new codebook construction method to obtain a set of pre-designed phase-shift configurations for the IRS unit cells. Since the complexity of online optimization and the overhead for channel estimation scale with the size of the phase-shift codebook, the design of small codebooks is of high importance. We consider...Show More
Codebook Based Two-Time Scale Resource Allocation Design for IRS-Assisted eMBB-URLLC Systems
Walid R. Ghanem;Vahid Jamali;Malte Schellmann;Hanwen Cao;Joseph Eichinger;Robert Schober
This paper investigates the resource allocation algorithm design for wireless systems assisted by large intelligent reflecting surfaces (IRSs) with coexisting enhanced mobile broadband (eMBB) and ultra reliable low-latency communication (URLLC) users. We consider a two-time scale resource allocation scheme, whereby the base station’s precoders are optimized in each mini-slot to adapt to newly arri...Show More
A Field Test of 5G Enhanced Mobile Ultrasound with Network Slicing
Mohamed Gharba;Xun Xiao;Hanwen Cao;Joseph Eichinger;Artur Hecker;Michael Kranzfelder;Daniel Ostler
The major advantages of 5G networks for eHealth use cases are the low latency transmission and network slicing. In this paper, we explore the feasibility of using 5G to enhance remote mobile ultrasound. We demonstrate a medical use case to show how eHealth applications can be enhanced with 5G radio technology and network slicing. By using a flexible, reconfigurable test-bed, we examine the benefit...Show More
Use Cases, Requirements and Challenges of 5G Communication for Industrial Automation
Sandip Gangakhedkar;Hanwen Cao;Ali Ramadan Ali;Karthikeyan Ganesan;Mohamed Gharba;Josef Eichinger
2018 IEEE International Conference on Communications Workshops (ICC Workshops)
Year: 2018 | Conference Paper |
Cited by: Papers (48)
The growing digitization of manufacturing processes requires enhanced connectivity between moving objects and machines in a factory environment. Communication for factory automation is characterized by periodicity, determinism and isochronicity, and has very different system and communication requirements compared to traditional mobile broadband for smartphones. In this paper, we analyze several i...Show More
Prediction based framework for vehicle platooning using vehicular communications
Varun Jain;Stephan Lapoehn;Tobias Frankiewicz;Tobias Hesse;Mohamed Gharba;Sandip Gangakhedkar;Karthikeyan Ganesan;Hanwen Cao;Josef Eichinger;Ali Ramadan Ali;Yao Zou;Liang Gu
2017 IEEE Vehicular Networking Conference (VNC)
Year: 2017 | Conference Paper |
Cited by: Papers (16)
One of the major advantages of V2V communication for vehicle platooning system is the low latency of message transfer between the vehicles as compared to the recognition by the sensor systems. The low latency allows the following vehicles to predict the trajectory of leading vehicle and plan the required control actions in a very short time. In addition, V2V can be effectively used in scenarios wh...Show More
5G enabled cooperative collision avoidance: System design and field test
Mohamed Gharba;Hanwen Cao;Sandip Gangakhedkar;Josef Eichinger;Ali Ramadan Ali;Karthikeyan Ganesan;Varun Jain;Stephan Lapoehn;Tobias Frankiewicz;Tobias Hesse;Yao Zou;Chen Tang;Liang Gu
2017 IEEE 18th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)
Year: 2017 | Conference Paper |
Cited by: Papers (17)
We explore the feasibility of 5G for enhancing cooperative automated driving. A V2X solution for enhancing road safety through connected cars based on 5G radio technology is shown. Based on a flexible, re-configurable software defined radio test-bed, we examine the benefit of ultra low latency and high reliability (URLLC) profile for enhanced emergency brake maneuver. This use case reveals the adv...Show More
A 5G V2X testbed for cooperative automated driving
Hanwen Cao;Sandip Gangakhedkar;Ali Ramadan Ali;Mohamed Gharba;Josef Eichinger
2016 IEEE Vehicular Networking Conference (VNC)
Year: 2016 | Conference Paper |
Cited by: Papers (33)
Ensuring low-latency and highly reliable communication between vehicles is one of the goals of 5G. We present a 5G Vehicle-to-everything (V2X) wireless testbed based on flexible and re-configurable software defined radio that is designed for cooperative automated driving. The use-cases and communication requirements for cooperative automated driving are discussed to motivate the system design and ...Show More
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