Video Streaming Over MANETs: Reality or Fiction?

Halvorsen, Magnus Engh; Plagemann, Thomas; Siekkinen, Matti

doi:10.4108/icst.mobimedia2008.3912

Cited by 5 publications

(9 citation statements)

References 11 publications

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“…What distinguishes our work from [2,3,9] is first of all that they utilize 11 Mbps physical net bitrate, while we utilize 54 Mbps. While [9] differs by the use of laptops, [3] and [2] are more related since they investigate handhelds.…”

Section: Related Workmentioning

confidence: 99%

“…While [9] differs by the use of laptops, [3] and [2] are more related since they investigate handhelds. However, the N900 is based on a newer generation architecture, which we found makes more extensive use of direct memory access (DMA) to relieve the CPU from the packet copying overhead during network transmission.…”

Section: Related Workmentioning

confidence: 99%

“…The most closely related work is presented in [2]. Here, an experiment is conducted in which video streams are preencoded at the bitrates 200, 500 and 1000 Kbps.…”

Section: Related Workmentioning

confidence: 99%

“…The latter to see whether the CPU is still the bottleneck, as reported in [2]. Finally, interrupts are logged for obtaining an overview of hardware activities.…”

Section: Experiments Designmentioning

confidence: 99%

“…Halvorsen et al [2] revealed that almost 100% CPU is consumed at a Nokia 770 Tablet receiving and playing a 1 Mbps video stream. The high amount of CPU consumption induces that the node is not able to perform other tasks.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

On the forwarding capability of mobile handhelds for video streaming over MANETs

Kristiansen

Lindeberg

Rodríguez-Fernández

et al. 2010

Proceedings of the Second ACM SIGCOMM Workshop on Networking, Systems, and Applications on Mobile Handhelds

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Despite the importance of real-world experiments, nearly all ongoing research activities addressing video streaming over MANETs are based on simulation studies. Earlier research shows that the limited resources of mobile handhelds, which are not modeled in most network simulators, can be a severe bottleneck. We study the capability of a modern handheld to perform one core task, which is the forwarding of video streams. We present end-to-end video quality and network measurements, along with an analysis of resource consumption. Our studies of the recent handheld Nokia N900 show that it can forward up to 3.70 Mbps. However, subjective video quality is compromised already at 3.35 Mbps, due to excessive delay. Our analysis unveils that direct memory access (DMA) relieves the CPU of forwarding overhead and that, due to the digital signal processor (DSP) support, additional coding overhead does not decrease the forwarding capacity. Finally, we find that power management impacts results considerably. It is possible to increase the forwarding capacity up to 27.4% by increasing the frequency of internal buses. Hence, our results demonstrate that the forwarding capacity is highly dependent on the internal state and activity of the device.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

“…The most closely related work is presented in [2]. Here, an experiment is conducted in which video streams are preencoded at the bitrates 200, 500 and 1000 Kbps.…”

Section: Related Workmentioning

confidence: 99%

“…The latter to see whether the CPU is still the bottleneck, as reported in [2]. Finally, interrupts are logged for obtaining an overview of hardware activities.…”

Section: Experiments Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

On the forwarding capability of mobile handhelds for video streaming over MANETs

Kristiansen

Lindeberg

Rodríguez-Fernández

et al. 2010

Proceedings of the Second ACM SIGCOMM Workshop on Networking, Systems, and Applications on Mobile Handhelds

Self Cite

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Improved video streaming using MSVC and nonoverlapping zone routing multipath propagation over MANETs

Badhusha¹,

Geetha²,

Prabhu³

et al. 2018

Int J Communication

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Summary Providing real‐time video streaming in mobile ad hoc networks is difficult because of the time‐dependent channel status and stringent service requirements. The currently existing route request‐reply–based multihop overlay networks cause considerable control overheads in video transmission resulting in loss of data and communication breakdown. Such networks are more suitable to nonstreaming video applications rather than to time‐sensitive video streaming applications. Therefore, a powerful mechanism needs to be adopted to handle the channel failures amicably and reduce latency effectively in time critical video streaming applications over mobile ad hoc networks. In order to be resilient to the channel failures and reduce latency in such applications, 2 strategies, namely, multistate video coding and 2‐tier–based nonoverlapping zone routing multipath propagation through directional antennas have respectively been incorporated. The performance of the proposed nonoverlapping zone routing multipath propagation system is compared with those of the existing multicast zone routing and zone‐based hierarchical link state routing protocols with parameters average end‐to‐end delay, routing overhead and packet delivery ratio using NS 2.34. The simulation results show that latency and resilience get considerably improved. Finally, the video quality of the proposed work has been verified by subjective and objective video testing methods.

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Challenges and techniques for video streaming over mobile ad hoc networks

et al. 2010

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Developments in mobile devices and wireless networking provide the technical platform for video streaming over mobile ad hoc networks (MANETs). However, efforts to realize video streaming over MANETs have met many challenges, which are addressed by several different techniques. Examples include cross-layer optimization, caching and replication, and packet prioritization. Cross-layer optimization typically leverages multiple description video coding and multipath routing to provide the receiver(s) sufficient video quality. Caching and replication add tolerance to disruptions and partitioning. In this paper, we identify the challenges of realizing video streaming over MANETs, and analyze and classify the proposed techniques. Since 65 % of the identified involve cross-layering design, we study the distribution of joint optimization and parameter exchanges. Due to the importance and complexity of evaluating the techniques, we analyze the common methods, indicating that the research domain suffers from a problem of comparability.

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Video Streaming Over MANETs: Reality or Fiction?

Cited by 5 publications

References 11 publications

On the forwarding capability of mobile handhelds for video streaming over MANETs

On the forwarding capability of mobile handhelds for video streaming over MANETs

Improved video streaming using MSVC and nonoverlapping zone routing multipath propagation over MANETs

Challenges and techniques for video streaming over mobile ad hoc networks

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