Channel estimation strategy for using LDM to deliver local content insertion in ATSC 3.0

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

doi:10.1109/bmsb.2017.7986164

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…Besides, the hypergeometric function terms inside the mgfs in (18) let the problem intractable. The solution of (20) hence cannot be derived in closed-form, but can be provided by one-dimensional numerical search over possible δs.…”

Section: Theorem 3: Within Scenario 1 Txid Failure Is Subordinate Tomentioning

confidence: 99%

“…As TxID detections inform about time-domain channel signatures, it is able to improve a channel estimation accuracy by using the multipath-awareness. 1 For example, a windowing-based method in [17], [18] and a subspace projection-based approach extending the idea of [19] are possible. On the other hand, the use cases in other verticals have been noted as well.…”

Section: Introductionmentioning

confidence: 99%

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Probabilistic Analysis on Successive Cancellation-Assisted Transmitter Identification in SFN With Randomly Distributed Co-Channel Interferers

et al. 2020

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This paper investigates the detection error of radio frequency (RF)-watermark type transmitter identification (TxID) signal in a single frequency network (SFN). Based on the Cramer-Rao bound (CRB) of TxID detection, closed-form failure probabilities for TxID detection are derived. In order to reflect the practical network condition, the interference from Poisson-distributed out-of-guard interval transmitters is accounted for TxID detection failure probability (TDFP). The proposed approach consequently examines the possible TDFP gain that can be obtained by applying successive preamble cancellation to the TxID detection. Numerical results reveal that the performance of the preamble cancellation-assisted technique is dependent on the threshold signal-to-interference noise ratio (SINR) for preamble signal detection. Nevertheless, the assistance of preamble cancellation is verified to guarantee more than 4 dB improvement of TxID detection capability under practical preamble signal configurations. INDEX TERMS Transmitter identification (TxID), successive interference cancellation (SIC), Poisson point process (PPP).

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Section: Theorem 3: Within Scenario 1 Txid Failure Is Subordinate Tomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Probabilistic Analysis on Successive Cancellation-Assisted Transmitter Identification in SFN With Randomly Distributed Co-Channel Interferers

et al. 2020

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“…Abhay Mohan and K. Giridhar are with are with the Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai Layered division multiplexing (LDM) [6], which was initially proposed under the name cloud transmission [7]- [10], is a technique that enables local content delivery. LDM employs power division multiplexing to deliver the highly robust core layer (CL) signal to all users and the less robust enhanced layer (EL) signal to users with a high signal-to-interference-plus-noise ratio (SINR).…”

Section: Introductionmentioning

confidence: 99%

Interference-Managed Local Service Insertion for 5G Broadcast

V¹,

Kim²

2023

Preprint

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<p>Local content insertion enabled single frequency networks (SFN) for TV broadcast is a topic of considerable research interest. The SFN broadcast system is not ideally suited for localized content, but it offers enormous spatial diversity and power gain advantages. Orthogonal Frequency Division Multiple Access (OFDMA) allows reserving a fraction of available subcarriers for broadcasting local content. However, a user in the transition region from one local service area (LSA) to another experiences high co-channel interference (CCI). This work explores the possibility of using a `buffer zone' based on universal frequency reuse schemes. In such systems, the power allocation to each content is varied to reduce the CCI-dominated region in the LSA boundary. Simulation results show that depending on the threshold signal-to-interference plus noise (SINR) ratio selected, the proposed buffer architectures increase the percentage of users served by the SFN compared to the scheme where such a buffer is absent. Moreover, the proposed method is spectrally efficient compared to an orthogonal allocation of local content across the LSAs.</p>

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