Topic
Single-frequency network
About: Single-frequency network is a research topic. Over the lifetime, 808 publications have been published within this topic receiving 7567 citations.
Papers published on a yearly basis
Papers
TL;DR: eMBMS evolution brings improved performance thanks to higher and more flexible LTE bit rates, single frequency network operations, and carrier configuration flexibility, and 3GPP Rel-11 brings improvements in the areas of service layer with, for example, video codec for higher resolutions and frame rate, and forward error correction.
Abstract: The Third Generation Partnership Project defined multimedia broadcast/multicast service in 2005 to optimize the distribution of video traffic. This standard covers the terminal, radio, core network, and user service aspects. This MBMS standard has evolved into enhanced MBMS (eMBMS) that builds on top of the 3GPP Long Term Evolution standard. eMBMS evolution brings improved performance thanks to higher and more flexible LTE bit rates, single frequency network operations, and carrier configuration flexibility. 3GPP Rel-11 also brings improvements in the areas of service layer with, for example, video codec for higher resolutions and frame rate, and forward error correction. eMBMS allows offloading of the LTE network and backhaul. It enables the possibility to deliver premium content to many users with secured quality of service in defined areas. Other important use cases are pushed content via user equipment caching and machine-to-machine services. This article describes the relevant use cases for eMBMS in terms of service. It then gives a tutorial on eMBMS, in particular highlighting the evolution over MBMS. The scope comprises the radio access, core network, and service layer.
418 citations
3 Jun 2005
TL;DR: In this paper, the adaptive filter required for zero-Doppler paths cancellation (clutter contributors and transmitters in a single frequency network, SFN, configuration, where all transmitters are identical) is described and applied to experimental data.
Abstract: For some years, 'coded orthogonal frequency division multiplexing' (COFDM) has been emerging in many European countries. This waveform is used for digital audio broadcasting (DAB) with 1.5 MHz bandwidth and for terrestrial digital video broadcasting (DVB) with 7.6 MHz bandwidth. The objective of the study is to prove the feasibility of target detection using such COFDM broadcasters. After a description of COFDM modulation, the adaptive filter required for zero-Doppler paths cancellation (clutter contributors and transmitters in a single frequency network, SFN, configuration, where all transmitters are identical) is described and applied to experimental data.
284 citations
TL;DR: The likely implications of SFNs are covered, in particular the need for changed FCC rules and increased competition through a higher frequency reuse and the idea of the FCCs only limiting the power outside of the service area and letting the broadcasters decide on transmitter locations, number of transmitters and power levels is proposed.
Abstract: Single Frequency Networks (SFNs) offer many advantages including better coverage, less interference, less power, and higher reliability. SFNs can also free up extra TV channels, resulting in more efficient use of the spectrum. The paper presents an overview of the advantages of SFNs and some basics about how to implement them. The significantly improved Signal to Interference performance and less radiated power in SFNs are derived from simple propagation models. Some potential problems that must be considered are discussed, including limitations due to receiver performance. Several simple formulas that should be helpful in quickly estimating and evaluating an SFN system are also presented. Finally, the likely implications of SFNs are covered, in particular the need for changed FCC rules and increased competition through a higher frequency reuse. The idea of the FCCs only limiting the power outside of the service area and letting the broadcasters decide on transmitter locations, number of transmitters and power levels is proposed.
206 citations
18 Jul 2018
TL;DR: This paper presents a comprehensive discussion of the factors involved in the design of NR OFDM numerology to support eMBB, IoT, and MBSFN.
Abstract: 5G New Radio (NR) access technology is envisioned to operate in sub-1 GHz to 100 GHz spectrum and support diverse use cases, including Internet-of-Things (IoT), Enhanced Mobile Broadband (eMBB), and Multimedia-Broadcast Single Frequency Network (MBSFN). NR is currently being standardized in the 3rd Generation Partnership Project (3GPP). In order to address diverse scenarios and deployments, a scalable CP-OFDM waveform has been approved in 3GPP as part of NR physical layer design for both uplink and downlink transmissions. The waveform is scalable in the sense that the sub-carrier spacing of OFDM can be chosen according to 15 2n kHz, where n is an integer and 15 kHz is the subcarrier spacing used in Long Term Evolution (LTE). The choice of integer-valued parameter n depends on various factors, including type of deployments, service requirements, hardware impairments, mobility, performance and implementation complexity. This paper presents a comprehensive discussion of the factors involved in the design of NR OFDM numerology to support eMBB, IoT, and MBSFN.
152 citations
TL;DR: This paper presents a comprehensive concept for target tracking in DAB/DVB-T networks accounting for the characteristics of this signal and derived algorithms will be tested with respect to numerical simulations.
135 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2024 | 1 |
| 2023 | 10 |
| 2022 | 22 |
| 2021 | 17 |
| 2020 | 32 |
| 2019 | 27 |