Adaptive Multimedia Applications to Improve User-Perceived Qos in Multihop Wireless Ad-Hoc Networks

Ruíz, Pedro Ortega; García, Emilio; Systems, Agora

doi:10.1142/9789812776730_0054

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…To avoid including extra components in the system, [6] proposes sending signalling packets between clients and server indicating the state of the network and using this information to manage the quality configuration. In this solution no device is added to the environment but the definition of a new protocol is needed.…”

Section: Bandwidth Measurementsmentioning

confidence: 99%

Adaptive cross-device videoconferencing solution for wireless networks based on QoS monitoring

Rodríguez

Alonso

Salvachúa

et al. 2013

2013 World Congress on Computer and Information Technology (WCCIT)

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Abstract-The increase in CPU power and screen quality of todays smartphones as well as the availability of high bandwidth wireless networks has enabled high quality mobile videoconferencing never seen before. However, adapting to the variety of devices and network conditions that come as a result is still not a trivial issue. In this paper, we present a multiple participant videoconferencing service that adapts to different kind of devices and access networks while providing an stable communication. By combining network quality detection and the use of a multipoint control unit for video mixing and transcoding, desktop, tablet and mobile clients can participate seamlessly. We also describe the cost in terms of bandwidth and CPU usage of this approach in a variety of scenarios.

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Section: Bandwidth Measurementsmentioning

confidence: 99%

Adaptive cross-device videoconferencing solution for wireless networks based on QoS monitoring

Rodríguez

Alonso

Salvachúa

et al. 2013

2013 World Congress on Computer and Information Technology (WCCIT)

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“…Another technique is lost control protocol [6][7] that maintains the number of lost packets during a certain interval. If there are too many lost packets, it indicates that network congestion has occurred.…”

Section: Related Workmentioning

confidence: 99%

“…Lost control protocol [6][7] is a monitoring process to make decision from the number of previous lost packets. The thresholds have been changed to a suitable value to work in collaboration with buffer control protocol.…”

Section: Lost Control Protocolmentioning

confidence: 99%

Integrating buffer control and lost control collaboration for the transmission of real-time multimedia data streams

Sathitwiriyawong

Sananakin

2004

2004 IEEE Region 10 Conference TENCON 2004.

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The transmission of real-time multimedia data streams requires efficient buffer control and lost control mechanisms. The buffer control protocol is used to handle packet delay by controlling the number of packets in the receiver's buffer. Whilst the lost control protocol is used to handle packet loss by monitoring the history of packet loss. These results are then used to determine the most appropriate multimedia quality presented at the receiver's side in terms of compression ratio and sampling rate of multimedia data for a certain network condition by exchanging some negotiation messages between senders and receivers. This paper focuses on an adjustment mechanism with feedback from the receiver. It is based on both existing buffer control protocol and lost control protocol. The simulation results prove that the integration of these protocols can significantly improve the presentation quality of real-time multimedia in terms of suspended time and packet loss on a wide range of delay variations.

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Mobility-aware mesh construction algorithm for low data-overhead multicast ad hoc routing

Ruíz

Gómez‐Skarmeta

2004

J. Commun. Netw.

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Adaptive Multimedia Applications to Improve User-Perceived Qos in Multihop Wireless Ad-Hoc Networks

Cited by 6 publications

References 3 publications

Adaptive cross-device videoconferencing solution for wireless networks based on QoS monitoring

Adaptive cross-device videoconferencing solution for wireless networks based on QoS monitoring

Integrating buffer control and lost control collaboration for the transmission of real-time multimedia data streams

Mobility-aware mesh construction algorithm for low data-overhead multicast ad hoc routing

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