Topic
High-throughput satellite
About: High-throughput satellite is a research topic. Over the lifetime, 184 publications have been published within this topic receiving 1376 citations.
Papers
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TL;DR: The vision on advanced precoding techniques and user clustering methods for multibeam broadband fixed satellite communications and practical challenges to deploy precoding schemes and the support introduced in the recently published DVB-S2X standard are provided.
Abstract: 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 beam edges suffer from very large interference for even a moderately aggressive planning of reuse-2. Although solutions for inter-beam interference management have been investigated at the satellite terminal, it turns out that the performance improvement does not justify the increased terminal complexity and cost. In this article, we pay attention to interference mitigation techniques that take place at the transmitter (i.e., the gateway). Based on this understanding, we provide our vision on advanced precoding techniques and user clustering methods for multibeam broadband fixed satellite communications. We also discuss practical challenges to deploy precoding schemes and the support introduced in the recently published DVB-S2X standard. Future challenges for novel configurations employing precoding are also provided.
180 citations
TL;DR: This paper presents the typical system architecture of high throughput satellites and provides an analytical approach to elements that are required for the estimation of forward and return capacity, the key factor in these systems.
Abstract: KA-SAT has represented a new generation of high throughput satellites (HTS) with the largest number of spots delivering a capacity of 90 Gbit/s for a wide variety of services ranging from internet access in homes to satellite news gathering and domestic broadcasting. HTS systems require a critical approach in terms of communication system requirements and payload analysis. This paper presents the typical system architecture of such systems and provides an analytical approach to elements that are required for the estimation of forward and return capacity, the key factor in these systems. These elements include the effective isotropic radiated power (EIRP) and the gain over noise temperature (G/T) cumulative densities, the carrier-to-inference (C/I) estimations and the capacity assessment for the forward and return links.
118 citations
01 Oct 2012
TL;DR: In this article, the authors present an overview of the state-of-the-art in HTS systems for fixed satellite services (FSS) and high density-FSS.
Abstract: This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS. Promising techniques and innovative strategies that can enhance system performance are reviewed and analyzed aiming to show what to expect for next generation ultra-high capacity satellite systems. Potential air interface evolutions, efficient frequency plans, feeder link dimensioning strategies and interference cancellation techniques are presented to show how Terabit/s satellite myth may turn into reality real soon.
95 citations
TL;DR: In this article, the state-of-the-art and open research challenges of signal processing techniques for very high throughput satellites (V/HTS) systems are presented for the first time, with focus on novel approaches for efficient interference mitigation.
Abstract: The field of satellite communications is enjoying a renewed interest in the global telecom market, and very high throughput satellites (V/HTS), with their multiple spot-beams, are key for delivering the future rate demands In this article, the state-of-the-art and open research challenges of signal processing techniques for V/HTS systems are presented for the first time, with focus on novel approaches for efficient interference mitigation The main signal processing topics for the ground, satellite, and user segment are addressed Also, the critical components for the integration of satellite and terrestrial networks are studied, such as cognitive satellite systems and satellite-terrestrial backhaul for caching All the reviewed techniques are essential in empowering satellite systems to support the increasing demands of the upcoming generation of communication networks
86 citations
TL;DR: It is demonstrated that important capacity gains are to be expected from applying precoding even after introducing a number of significant practical impairments, and proposed pragmatic solutions that have been developed in order to overcome these limitations.
Abstract: Multi-user multiple-input multiple-output MU-MIMO has allowed recent releases of terrestrial long-term evolution LTE standards to achieve significant improvements in terms of offered system capacity. The publication of the DVB-S2X standard and particularly of its novel superframe structure is a key enabler for applying similar interference management techniques -such as precoding- to multibeam high throughput satellite HTS systems. This paper presents results from the European Space Agency-funded R&D activities concerning the practical issues that arise when precoding is applied over an aggressive frequency re-use HTS network. In addressing these issues, the paper also proposes pragmatic solutions that have been developed in order to overcome these limitations. Through the application of a comprehensive system simulator, it is demonstrated that important capacity gains beyond 40% are to be expected from applying precoding even after introducing a number of significant practical impairments. Copyright © 2015 John Wiley & Sons, Ltd.
82 citations