Work

Frequency Assignment for Guaranteed QoS in Two-Ray Models with Limited Location Information

Year: 2025

Type: conference-paper

Abstract: We consider a two-ray channel model in which the distance between transmitter and receiver is only known up to an interval. Due to the unknown distance, destructive interference might occur which significantly reduces the receive power. To mitigate this problem, multiple frequencies can be used in parallel. In this work, we consider a worst-case design approach which allows maximizing the guaranteed quality of service (QoS) despite the uncertainty about the channel. First, we derive the worst-case receive power within the uncertainty region. Next, we compare different approaches to assign frequencies to the user such that the worst-case is maximized. We propose a greedy algorithm, which significantly outperforms standard baseline schemes while also being resource efficient. With this, the communication system can be designed such that a certain performance can always be guaranteed, and ultra-reliability is practically achieved.

Source: International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)

DOI: 10.23919/wiopt66569.2025.11123355

Authors: Karl-Ludwig Besser, Eduard A. Jorswieck, Justin P. Coon, H. Vincent Poor

Institutions: Linköping University, Technische Universität Braunschweig, University of Oxford, Princeton University

Language: English

Topic: Wireless Communication Networks Research

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Bundesministerium für Bildung und Forschung, Engineering and Physical Sciences Research Council

Awards: Collaborative Research: SWIFT: Nonlinear and Inseparable Radar And Data (NIRAD) Transmission Framework for Pareto Efficient Spectrum Access in Future Wireless Networks, Probabilistic Tomography of Wireless Networks, Verbundprojekt: 6G Research and Innovation Cluster (6G-RIC) Offene und sichere 6G-Technologien: Weltmarktchance für Deutschland - 6G-RIC -, Teilvorhaben: Integrierte Schaltungen, Kommunikationstechnik und Netzwerke für die 6. Mobilfunkgeneration