Video Dissemination over Hybrid Cellular and Ad Hoc Networks

Minh, Ngoc; Hsu, Cheng-Hsin; Venkatasubramanian, Nalini

doi:10.1109/tmc.2012.246

Cited by 19 publications

(1 citation statement)

References 27 publications

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“…The total amount of time a node spends to relay a layer k to destination d is formulated by time-constraint model proposed in [46]. This model has been widely used in works such as [12,47].…”

Section: Network Modelmentioning

confidence: 99%

AD3-GLaM: A cooperative distributed QoE-based approach for SVC video streaming over wireless mesh networks

et al. 2018

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Kandaraj Piamrat, et al.. AD3-GLaM: A cooperative distributed QoE-based approach for SVC video streaming over wireless mesh networks. Ad Hoc Networks, Elsevier, 2018, 80, pp. AbstractWe study the routing problem of scalable video coding video streaming over wireless mesh networks. In contrast to most of the conventional routing algorithms, our proposal focuses on optimizing users' satisfaction. The mean opinion score -an indicator of quality of experience (QoE) in video streamingis utilized to assess the quality of routes in wireless mesh networks. The objective is to optimize the overall user experience in the network. Conventional routing approaches do not consider QoE and are not optimal with respect to user experience. Moreover, some centralised approaches are not scalable and require significant computational resources. The latter disadvantage can be overcome using distributed approaches. This paper presents a QoE-based cooperative distributed routing approach. Among distributed cooperative optimization schemes, AD 3 is highlighted as one of the most efficient because of its fast convergence. The contributions of this paper are as follows: we encode the original problem into a factor graph and optimize the number of exchanged messages; we propose a partially distributed routing scheme based on OLSR and AD 3 ; and we propose a distributed decoding algorithm in order to find a feasible solution. Our thorough simulation results confirm the advantages of the proposed scheme.

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Section: Network Modelmentioning

confidence: 99%

AD3-GLaM: A cooperative distributed QoE-based approach for SVC video streaming over wireless mesh networks

et al. 2018

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An effective cluster based data dissemination in a hybrid cellular ad hoc network

Rajkumar¹,

Suresh²,

Sasikumar³

2018

Concurrency and Computation

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SummaryRecent research works have shown much interest in incorporating ad hoc networks with a cellular network to improve the data dissemination. The primary challenge of disseminating data over a hybrid network is to select the mode of operation between the cellular and ad hoc interfaces effectively. This work proposes Adaptive Data Dissemination (ADD) algorithm that enables the nodes to switch between the cellular and ad hoc interfaces and reduces the burden of the base station without degrading the communication efficiency. The proposed algorithm partitions the entire network into small clusters and selects the cluster head for each cluster based on the link‐worth function. This algorithm divides the transmission range of a base station into two regions such as interior and exterior. The interior region is nearer to the base station, while the exterior constitutes the border region of the base station's coverage area. The cluster heads in the interior region choose the cellular mode and retrieve the data from the base station directly. The cluster head in the exterior region initially chooses the ad hoc mode and later on chooses the cellular mode in the unavailability of demanding data in the neighboring cluster. The ADD algorithm does not allow the same node to act as a cluster head for a long time as the energy will get drained‐off quickly. Therefore, the proposed approach dynamically exchanges the role of the cluster head with the cluster members based on the link‐worth function. The base station deals only with the cluster heads in the interior range, and hence, minimizing the resource consumption at the base station. Nodes exchange as many chunks as possible using ad hoc links to reduce cellular network usage. The success of the proposed approach is evaluated using NS2 simulation.

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