Coverage study of ATSC 3.0

Li, Wei; Wu, Yiyan; Lafleche, Sebastien; Salehian, Khalil; Zhang, Liang; Florea, Adrian; Park, Sung Ik; Lee, Jae-Young; Kim, Heung-Mook; Hur, Namho; Regueiro, Cristina; Montalbán, Jon; Angueira, Pablo

doi:10.1109/bmsb.2017.7986200

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…Therefore, in actual reception, the receiver antenna form and installation will directly affect the service effective coverage. For example, for the high bit rate services transmitted by EL, when the antenna gain and installation height cannot reach the value of the service plan, a large range of EL holes may appear within the effective coverage of CL, which is more obvious in urban environments [ 23 , 26 ]. Although the coverage of the EL signal can be enhanced by simply adjusting the injection level, it will significantly affect the reception performance of CL mobile services.…”

Section: Introductionmentioning

confidence: 99%

Enhanced LDM for Next-Generation Digital Broadcasting Transmission

Deng

Bian

2021

Sensors

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In the traditional layered division multiplexing (LDM) system, by simply adjusting the injection level, the reception performance of the core layer (CL) mobile services will be decreased significantly, resulting in the deterioration of system coverage performance. Thus, it is necessary to improve the performance of the enhanced layer (EL) service reception without affecting the reception threshold of CL service. To achieve this, in this paper, an enhanced LDM (En-LDM) scheme that supports multi-service transmission is proposed for the next-generation broadcasting network. In this scheme, at the transmitter end, part of the low-density parity-check (LDPC) coded data stream of fixed service conveyed in the EL will be extracted out through puncturing, and then, it will be transmitted over the CL of the LDM signal along with the original CL data in a frequency domain multiplexing (FDM) manner. At the receiving end, the punctured data of the EL fixed service will be recovered with a higher signal-to-noise ratio (SNR). Compared to the traditional LDM scheme, the proposed En-LDM scheme can significantly improve the reception performance of fixed services without decreasing the SNR threshold of mobile services. Moreover, the En-LDM can achieve a higher channel capacity than that of the traditional LDM for both the fixed services and the overall services. The superiority of the proposed En-LDM scheme over the traditional LDM scheme is validated by the simulation under the additive white Gaussian noise (AWGN) and fading channels.

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Section: Introductionmentioning

confidence: 99%