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Journal Article Field Evaluation of Transmit Diversity Code Filter Sets in ATSC 3.0 Single Frequency Networks
Cited 6 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Bo-mi Lim, Sunhyoung Kwon, Sungjun Ahn, Sung-Ik Park, Jae-Young Lee, Heung Mook Kim, Namho Hur, Jeongchang Kim
Issue Date
2022-03
Citation
IEEE Transactions on Broadcasting, v.68, no.1, pp.191-202
ISSN
0018-9316
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/TBC.2021.3118228
Abstract
Advanced Television Systems Committee (ATSC) 3.0, a recently developed terrestrial broadcasting standard, supports a Single Frequency Network (SFN), which extends service coverage and enhances received field strength without additional frequency resources. In SFN, multiple transmitters emit identical ATSC 3.0 broadcasting signals, which may cause constructive or destructive interference on a receiver side. The worst situation occurs when two signals from different transmitters are received with the opposite phase and similar power within a sample time, causing the cancellation of the received signal. In order to prevent such signal cancellation, ATSC 3.0 adopted transmitter diversity code filter sets (TDCFS), which is a frequency domain pre-distortion scheme to minimize cross-correlation among multiple transmitter signals in SFN. This paper sets up an ATSC 3.0 SFN consisting of two transmitter sites, transmitting high definition (HD) for mobile service and 4K ultra high definition (UHD) for fixed service. Layered division multiplexing (LDM) and time division multiplexing (TDM) are used to simulcast the two services with different robustness in the same radio frequency (RF) channel. Then, performance is evaluated using a threshold of visibility (ToV) and a successful reception rate. The time and frequency channel responses are changed at the same reception area when TDCFS is applied so the results show that reception performance is improved in the worst situation in SFN.
KSP Keywords
ATSC 3.0, Advanced television systems committee(ATSC), Cross-Correlation, Destructive interference, Field evaluation, Fixed Service, Mobile services, Opposite phase, Pre-distortion, TRANSMIT DIVERSITY, Terrestrial Broadcasting