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Whenever multibeam satellite systems target very aggressive frequency reuse in their coverage area, inter-beam interference becomes the major obstacle for increasing the overall system throughput. As a matter of fact, users located at the…

In this paper, iterative multi-user detection techniques for multi-beam communications are presented. The solutions are based on a successive interference cancellation architecture and a channel decoding to treat the co-channel…

Networking and Internet Architecture · Computer Science 2012-02-10 Helmi Chaouech , Ridha Bouallegue

We focus on interference mitigation and energy conservation within a single wireless body area network (WBAN). We adopt two-hop communication scheme supported by the the IEEE 802.15.6 standard (2012). In this paper, we propose a dynamic…

Networking and Internet Architecture · Computer Science 2016-11-03 Mohamad Jaafar Ali , Hassine Moungla , Ahmed Mehaoua , Yong Xu

Multibeam satellite systems have been employed to provide interactive broadband services to geographical areas under-served by terrestrial infrastructure. In this context, this paper studies joint multiuser linear precoding design in the…

Information Theory · Computer Science 2015-03-19 Gan Zheng , Symeon Chatzinotas , Bjorn Ottersten

The constantly increasing demand for interactive broadband satellite communications is driving current research to explore novel system architectures that reuse frequency in a more aggressive manner. To this end, the topic of dual satellite…

Information Theory · Computer Science 2012-11-27 Dimitrios Christopoulos , Symeon Chatzinotas , Bjorn Ottersten

Multiple-input multiple-output (MIMO) mmWave devices broadcast multiple spatially-separated data streams simultaneously in order to increase data transfer rates. Data transfer can, however, be compromised by interference. Conventional…

Signal Processing · Electrical Eng. & Systems 2024-02-21 Joshua C. Lederman , Weipeng Zhang , Thomas Ferreira de Lima , Eric C. Blow , Simon Bilodeau , Bhavin J. Shastri , Paul R. Prucnal

High-rate satellite communications among hundreds and even thousands of satellites deployed at low-Earth orbits (LEO) will be an important element of the forthcoming sixth-generation (6G) of wireless systems beyond 2030. With millimeter…

Networking and Internet Architecture · Computer Science 2024-10-28 Sergi Aliaga , Vitaly Petrov , Josep M. Jornet

A simple line network model is proposed to study the downlink cellular network. Without base station cooperation, the system is interference-limited. The interference limitation is overcome when the base stations are allowed to jointly…

Information Theory · Computer Science 2009-09-28 Chris T. K. Ng , Howard Huang

Interference from terrestrial networks can reduce the communication rate for low Earth orbit (LEO) satellites in the upper mid-band. To coexist in frequency, MIMO precoding can be used to reduce the signal that impinges on the LEO…

Signal Processing · Electrical Eng. & Systems 2025-06-05 Nima Razavi , Murat Bayraktar , Nuria Gonzalez Prelcic , Robert W. Heath

This paper deals with multi-user detection techniques in asynchronous multibeam satellite communications. The proposed solutions are based on successive interference cancellation architecture (SIC) and channel decoding algorithms. The aim…

Networking and Internet Architecture · Computer Science 2012-03-13 Helmi Chaouech , Ridha Bouallegue

Sharing global channel information at base stations (BSs) is commonly assumed for downlink multi-cell precoding. In the context of massive multi-input multi-output (MIMO) systems where each BS is equipped with a large number of antennas,…

Information Theory · Computer Science 2014-11-18 Liangbin Li , Alexei Ashikhmin , Thomas Marzetta

The recent commercial trends towards using smaller dish antennas for satellite receivers, and the growing density of broadcasting satellites, necessitate the application of robust adjacent satellite interference (ASI) cancellation schemes.…

Information Theory · Computer Science 2014-04-29 Zohair Abu-Shaban , Hani Mehrpouyan , Bhavani Shankar M. R. , Bjorn Ottersten

This paper deals with the problem of precoding in multibeam satellite systems. In contrast to general multiuser multiple-input-multiple-output (MIMO) cellular schemes, multibeam satellite architectures suffer from different challenges.…

Information Theory · Computer Science 2016-12-14 Vahid Joroughi , Miguel Ángel Vázquez , Ana I. Pérez-Neira

In the present work, a multibeam satellite that employs aggressive frequency reuse towards increasing the offered throughput is considered. Focusing on the forward link, the goal is to employ multi-antenna signal processing techniques,…

Information Theory · Computer Science 2016-11-17 Dimitrios Christopoulos , Symeon Chatzinotas , Bjorn Ottersten

In this paper, optimal linear precoding for the multibeam geostationary earth orbit (GEO) satellite with the multi-user (MU) multiple-input-multiple-output (MIMO) downlink scenario is addressed. Multiple-user interference is one of the…

Spectrum monitoring and interference detection are crucial for the satellite service performance and the revenue of SatCom operators. Interference is one of the major causes of service degradation and deficient operational efficiency.…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Lissy Pellaco , Nirankar Singh , Joakim Jaldén

One of the important questions when discussing next-generation near-Earth mmWave and terahertz (THz) band satellite communications as an integral part of the 5G-Advanced and 6G landscape is the potential interference-related issues when…

Networking and Internet Architecture · Computer Science 2024-01-02 Sergi Aliaga , Vitaly Petrov , Josep M. Jornet

Satellite communication systems are a fundamental component in support of Europe's ambition to deploy smart and sustainable networks and services for the success of its digital economy. To cope with the 5G and beyond ever increasing demand…

Information Theory · Computer Science 2022-04-07 Alessandro Guidotti , Carla Amatetti , Fabrice Arnal , Baptiste Chamaillard , Alessandro Vanelli-Coralli

The majority of spatial signal processing techniques focus on increasing the total system capacity and providing high data rates for intended user(s). Unlike the existing studies, this paper introduces a novel interference modulation method…

Signal Processing · Electrical Eng. & Systems 2025-05-26 M. Yaser Yagan , Ali E. Pusane , Ali Gorcin , Ibrahim Hokelek

Mobile communication networks have witnessed a perpetual evolution since their launching as voice only networks. In the few past years, the focus was addressed to high data rate networks that offer high quality of service. The lately…

Networking and Internet Architecture · Computer Science 2014-03-18 Maissa Boujelben , Sonia Benrejeb , Sami Tabbane
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