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Journal Article Layered Division Multiplexing With Distributed Multiple-Input Single-Output Schemes
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Authors
Eduardo Garro, Carlos Barjau, David Gomez-Barquero, Jeongchang Kim, Sung-Ik Park, Namho Hur
Issue Date
2019-03
Citation
IEEE Transactions on Broadcasting, v.65, no.1, pp.30-39
ISSN
0018-9316
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/TBC.2018.2823643
Abstract
Single frequency networks (SFNs) provides an increased spectral efficiency compared to the traditional multiple frequency networks. However, some coverage areas in SFN can be affected by destructive interferences. In order to reduce these situations, distributed multiple-input single-output (MISO) schemes have been adopted in the new digital terrestrial television standards, Alamouti in DVB-T2 and transmit diversity code filter sets in ATSC 3.0. On the other hand, layered division multiplexing (LDM), a non-orthogonal multiple access technology, has been adopted in ATSC 3.0 due to its spectral efficiency increase compared to time or frequency division multiplexing. The LDM signal is formed by a power superposition of two independent signals, which are designed for different reception conditions (mobile and fixed-rooftop). The combination of distributed MISO and LDM techniques has not been evaluated yet. In this paper, the joint transmission of LDM with distributed MISO is analyzed in terms of complexity and the joint performance is evaluated by means of physical layer simulations.
KSP Keywords
ATSC 3.0, Access technology, DVB-T2, Digital Terrestrial Television, Frequency division multiplexing, Joint performance, Joint transmission, Layered Division Multiplexing, Multiple frequency, Multiple-input single-output(MISO), Nonorthogonal multiple access(NOMA)