A backward compatible local service insertion technique for DAB single frequency networks

Schrieber, Fabian

doi:10.1109/bmsb.2017.7986171

“…Such localized content is of interest to a small geographical area and may consist of targeted advertisements, local weather, news etc. SFN [4], a popular technology in broadcasting, is ideally suited for global content but encounters difficulties in supporting local content [5]. This is because the differing local contents simultaneously transmitted using the same set of frequencies interfere with each other at the boundaries between the local service areas (LSAs).…”

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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“…Such localized content is of interest to a small geographical area and may consist of targeted advertisements, local weather, news etc. SFN [4], a popular technology in broadcasting, is ideally suited for global content but encounters difficulties in supporting local content [5]. This is because the differing local contents simultaneously transmitted using the same set of frequencies interfere with each other at the boundaries between the local service areas (LSAs).…”

Section: Introductionmentioning

confidence: 99%

A Novel Spectrally Efficient Local Service Insertion Scheme With Universal Frequency Reuse

V¹,

Kim²

2022

Preprint

0

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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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