Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems.
Reads0
Chats0
TLDR
To combat interference with low overhead, this work proposes a generic interference-aware resource management framework based on joint spatial division and multiplexing (JSDM).Abstract:
By providing interactive broadband services to geographical areas underserved by terrestrial infrastructure, multi-beam satellite systems play a central role in future wireless communications. Targeting the terabit throughput requirements in satellite communications, we introduce a cognitive radio-based high-throughput satellite (HTS) system architecture where full frequency reuse is employed among beams. Moreover, by analyzing the characteristics of the considered architecture, we discuss the design challenges of radio resource management in cognitive HTS systems exposed to both intra-system and inter-system co-channel interference. Furthermore, to combat interference with low overhead, we propose a generic interference-aware resource management framework based on joint spatial division and multiplexing (JSDM). Under this framework, user grouping along with two-stage precoding is studied to achieve substantial improvement in the overall system throughput. Finally, some future research directions and challenges are also given.read more
Citations
More filters
Journal ArticleDOI
Heuristic Radio Resource Management for Massive MIMO in Satellite Broadband Communication Networks
TL;DR: In this paper, the authors derived affordable (linear) complexity radio resource management (RRM) techniques for satellite multi-beam broadband communication networks that are closely approaching the optimum solution which has an exponential complexity with the number of users.
Proceedings ArticleDOI
Machine Learning-based Frequency Resource Demand Prediction for a Mobile Satellite Network
TL;DR: The architecture and employment of a link-layer user-uplink simulator and a methodology that enables prediction of the spectrum demand of various connection service mixtures through the use of random forest machine learning are detailed.
Journal ArticleDOI
Dynamic Downlink Interference Management in LEO Satellite Networks Without Direct Communications
TL;DR: In this paper, the authors investigate effective interference management for low Earth Orbit (LEO) satellite networks that provide downlink services to ground users and share the same frequency spectrum range.
Proceedings ArticleDOI
Low Complexity Subset Precoding for High Throughput Satellite Systems
TL;DR: This article proposes a method to reduce the number of required complex multiplications in the gateway by utilizing a MMSE approach to determine the precoding matrix and focuses instead on the latter.
Journal ArticleDOI
Absorptive K-Band Bandpass Filter Using a Balanced Recursive Structure
TL;DR: In this article, a new K-band absorptive bandpass filter (ABPF) based on a microwave balanced recursive architecture was proposed. But the proposed structure was configured using two passive microwave hybrid couplers, two conventional bandpass filters (BPFs), and a recursive path control module consisting of a phase shifter and an optionally variable gain amplifier.
References
More filters
Journal ArticleDOI
Scenarios for 5G mobile and wireless communications: the vision of the METIS project
Afif Osseiran,Federico Boccardi,Volker Braun,Katsutoshi Kusume,Patrick Marsch,Michal Maternia,Olav Queseth,Malte Schellmann,Hans D. Schotten,Hidekazu Taoka,Hugo Tullberg,Mikko A. Uusitalo,Bogdan Timus,Mikael Fallgren +13 more
TL;DR: This article describes the scenarios identified for the purpose of driving the 5G research direction and gives initial directions for the technology components that will allow the fulfillment of the requirements of the identified 5G scenarios.
Journal ArticleDOI
Joint Spatial Division and Multiplexing—The Large-Scale Array Regime
TL;DR: JSDM achieves significant savings both in the downlink training and in the CSIT uplink feedback, thus making the use of large antenna arrays at the base station potentially suitable also for frequency division duplexing systems, for which uplink/downlink channel reciprocity cannot be exploited.
Journal ArticleDOI
Joint Spatial Division and Multiplexing: Opportunistic Beamforming, User Grouping and Simplified Downlink Scheduling
TL;DR: JSDM with simple opportunistic user selection is able to achieve the same scaling law of the system capacity with full channel state information and a low-overhead probabilistic scheduling algorithm is proposed that selects the users at random with probabilities derived from large-system random matrix analysis.
Journal ArticleDOI
Broadband Hybrid Satellite-Terrestrial Communication Systems Based on Cognitive Radio toward 5G
TL;DR: This article proposes a space segment design based on a spectrum-sensing-based cooperative framework, in consideration of the presence of MUs, and presents an overview of future broadband hybrid S-T communications systems, followed by an introduction to a typical application scenario of futuristic CR-broadband hybridS-T communication systems toward 5G.
Journal ArticleDOI
Architectures and Key Technical Challenges for 5G Systems Incorporating Satellites
Alessandro Guidotti,Alessandro Vanelli-Coralli,Matteo Conti,Stefano Andrenacci,Symeon Chatzinotas,Nicola Maturo,Barry G. Evans,Adegbenga B. Awoseyila,Alessandro Ugolini,Tommaso Foggi,Lorenzo Gaudio,Nader Alagha,Stefano Cioni +12 more
TL;DR: The proposed analysis shows that the main technical challenges are related to the PHY/MAC procedures, in particular random access, timing advance, and hybrid automatic repeat request and depending on the considered service and architecture, different solutions are proposed.