Toward an LTE Hybrid Unicast Broadcast Content Delivery Framework

Christodoulou, Louis; Abdul-Hameed, O; Kondoz, A.M.

doi:10.1109/tbc.2017.2704429

Cited by 15 publications

(7 citation statements)

References 7 publications

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“…With unicast, BB networks are very efficient to individualize the service delivery but may suffer from overload issues when a large number of users are demanding for high bandwidth services [7]. Alternatively multicast capabilities may also be exploited to benefit from a mutual resource exploitation through the Evolved Multimedia Broadcast Multicast Services (eMBMS) that was embedded in the Long Term Evolution (LTE) standard [8], [9]. However, this latter mode can only be deployed within a limited number of networks around the world.…”

Section: A Linear Mobile Tv Servicementioning

confidence: 99%

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Analysis of Hybrid Broadcast/Broadband Networks With Multiple Broadcasting Stations

et al. 2019

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Hybrid broadcast/broadband network (HBBN) presents a potential solution to mitigate the increasing demand for mobile TV. A proper HBBN deployment alleviates the limitations that each standalone network faces, thereby enhancing the global network coverage and efficiency. In this paper, we propose to address the question of performance improvement expected from such HBBN by means of an analytical framework based on stochastic geometry modeling. To this end, we introduce a generic model of the HBBN where multiple broadcast transmitters and a broadband network are deployed in the same area, jointly offering linear services, one of the mobile TV services. Two different approaches derived from stochastic geometry are applied and compared through the analysis of what is commonly referred to as a Point Hole Process (PHP): Original Poisson Point Process (PPP), and reduced PPP. Both approaches are thoroughly analyzed to give better insights into broadcast/broadband coexistence while taking into account the inter-cell interference of both networks. Exact and simplified expressions for the key performance metrics are derived such as the probability of coverage and ergodic capacity. Those expressions are then used to numerically maximize the spectral and power efficiency of the HBBN regarding the broadcast coverage radius and transmitters' density. The results show that for a wide range of user density, the HBBN introduces gain compared to either BB or BC networks. To the best of the authors' knowledge, this paper presents the first work dealing with the optimization of HBBN based on such a generic model and taking inter-cell and internetwork interference into consideration.

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Section: A Linear Mobile Tv Servicementioning

confidence: 99%

“…substituting (9) and (10) in (8) gives the CCDF of r v , and differentiating it will give the PDF stated in (7). On the other hand, the PDF of r l has been discussed in several previous works addressing stochastic geometry based network models.…”

Section: Probability Distribution Of the Link Distancementioning

confidence: 99%

Analysis of Hybrid Broadcast/Broadband Networks With Multiple Broadcasting Stations

et al. 2019

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“…Evolved Multimedia Broadcast Multicast Services (eMBMS), an advanced version of MBMS, has then been adopted by LTE. Contrarily to UC, eMBMS delivers content to multiple users through shared radio resources [10,11].…”

Section: Introductionmentioning

confidence: 99%

On the coexistence of broadcast and unicast in hybrid networks for the transmission of video services using stochastic geometry

Shokair

Nasser²,

Bazzi

et al. 2020

J Wireless Com Network

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Following the increasing growth in the demand on mobile TV, hybrid broadcast/broadband networks emerged as a suitable approach to overtake the challenges introduced by each network separately in order to enhance users' experience. This paper presents two possible scenarios for a hybrid, spatially separated, broadcast/broadband network to offer mobile TV linear services for the end users. Namely, the first scenario is based on shared spectrum access for both networks while the second one proposes a dedicated spectrum. Using a stochastic geometry approach, the paper derives analytical formulations for both the probability of coverage and ergodic capacity. These formulations are then used to optimize the hybrid network in terms of its key design parameters including the broadcast (BC) coverage radii, the broadband (BB) base stations' (BS) density, and spectral capacity. The results have shown that an optimal BC radius maximizing the probability of coverage and capacity exists and it depends on the BS density of the BB network. Other design parameters have been provided and analyzed leading to an optimal network deployment. To the best of the author's knowledge, this paper presents a first reference work dealing with the optimization of the hybrid network with the coexistence of broadband and broadcast networks, from stochastic geometry perspective, taking into account the inter-cell interference.

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“…Additionally, according to the conclusions of the World Mobile Conference (MWC −2018), there is still a lack of maturity in the 5G RAN, which is why the current service developments that focus on smart environments and cities, among which are video streaming services [6, 7], position LTE as the technology that ought to support this type of access [8]. All these facts show that LTE will continue to be of great interest to the scientific community and the industry in the coming years, with important challenges such as: (i) guaranteeing all users access to video services through spatial multiplexing with multi‐user multiple‐input multiple‐output LTE [9], (ii) ubiquitous access to a wide selection of high‐quality interactive multimedia content where a spectrally efficient delivery for many mobile devices is ensured through content distribution networks (content delivery networks) [10], and (iii) ability to adapt to new services by introducing new communication categories to support machine‐to‐machine communication within the framework of the internet of things [11], among others. That is why it is of high interest to know the behaviour of the demanding multimedia services in these types of systems widely spread and used by end users.…”

Section: Introductionmentioning

confidence: 99%