TY - JOUR
T1 - LDM Versus FDM/TDM for Unequal Error Protection in Terrestrial Broadcasting Systems
T2 - An Information-Theoretic View
AU - Gomez-Barquero, David
AU - Simeone, Osvaldo
N1 - Funding Information:
This work was supported by WWTF under Grant ICT12-054.
Publisher Copyright:
© 2015 IEEE.
PY - 2015/12
Y1 - 2015/12
N2 - In this paper, power-based layer-division multiplexing (LDM) is studied as a means to provide unequal error protection in digital terrestrial television (DTT) systems by adopting an information-theoretic approach. LDM can potentially offer fundamental performance gains as compared to traditional time-division multiplexing (TDM) or frequency-division multiplexing due to the reuse by all information layers of all the available time-frequency resources. The main use case of LDM for terrestrial broadcasting is the simultaneous provision of fixed and mobile services in the same channel. Since most DTT networks worldwide are dimensioned for fixed rooftop reception, this paper illustrates the performance comparison between LDM and F/TDM in terms of the capacity-coverage tradeoff of the mobile service for a given reduction of the capacity of the fixed service while keeping the coverage of the fixed service constant. A mathematical formulation, and corresponding numerical results, are provided for different fading channels, including single-input single-output, single-input multiple-output, multiple-input single-output, and multiple-input multiple-output antenna systems, and accounting also for the impact of non-ideal channel coding.
AB - In this paper, power-based layer-division multiplexing (LDM) is studied as a means to provide unequal error protection in digital terrestrial television (DTT) systems by adopting an information-theoretic approach. LDM can potentially offer fundamental performance gains as compared to traditional time-division multiplexing (TDM) or frequency-division multiplexing due to the reuse by all information layers of all the available time-frequency resources. The main use case of LDM for terrestrial broadcasting is the simultaneous provision of fixed and mobile services in the same channel. Since most DTT networks worldwide are dimensioned for fixed rooftop reception, this paper illustrates the performance comparison between LDM and F/TDM in terms of the capacity-coverage tradeoff of the mobile service for a given reduction of the capacity of the fixed service while keeping the coverage of the fixed service constant. A mathematical formulation, and corresponding numerical results, are provided for different fading channels, including single-input single-output, single-input multiple-output, multiple-input single-output, and multiple-input multiple-output antenna systems, and accounting also for the impact of non-ideal channel coding.
KW - ATSC 3.0
KW - FDM
KW - LDM
KW - TDM
KW - UEP
KW - digital terrestrial broadcasting
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U2 - 10.1109/TBC.2015.2459665
DO - 10.1109/TBC.2015.2459665
M3 - Article
AN - SCOPUS:84960214609
SN - 0018-9316
VL - 61
SP - 571
EP - 579
JO - IRE Transactions on Broadcasting
JF - IRE Transactions on Broadcasting
IS - 4
M1 - 7182743
ER -