Results 141 to 150 of about 2,157 (178)

MAC Support for Wireless Multimedia Sensor Networks

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
A wide range of applications such as disaster management, military, and security have fueled interest in sensor networks in recent years. Since the employed sensor nodes often are significantly constrained in their onboard energy, most of the research work, including that on medium access control (MAC) protocols, has focused on optimizing energy ...
Osama Farrag, Mohamed F. Younis, William D'Amico 0002   +2 more
openaire   +1 more source

Differentiated Reliability for Wireless Multimedia Sensor Networks

2012 21st International Conference on Computer Communications and Networks (ICCCN), 2012
In Wireless Multimedia Sensor Networks (WMSN), imaging and/or audio data must be delivered in time and respecting minimum reliability guarantees. While these objectives alone are usually conflicting, the resource constraints and error-prone nature of WMSN links increase the challenge even more, requiring special transport layer support such as the one ...
Nestor Michael C. Tiglao, António M. Grilo   +1 more
openaire   +1 more source

Wireless Multimedia Sensor Networks: Applications and Testbeds

Proceedings of the IEEE, 2008
The availability of low-cost hardware is enabling the development of wireless multimedia sensor networks (WMSNs), i.e., networks of resource-constrained wireless devices that can retrieve multimedia content such as video and audio streams, still images, and scalar sensor data from the environment.
Ian F. Akyildiz, Tommaso Melodia, Kaushik R. Chowdhury   +2 more
openaire   +1 more source

Efficient multimedia transmission in wireless sensor networks

6th EURO-NGI Conference on Next Generation Internet, 2010
Real-time multimedia data such as video are usually loss-tolerant but require timely delivery in order to be useful to the application. Loss recovery through the retransmission of lost data may introduce unacceptable delays, which is the reason why these data types are usually delivered with no transport layer reliability, using erasure coding and ...
J. F. Mingorance-Puga, Gabriel Maciá-Fernández, António Grilo 0001, Nestor Michael C. Tiglao   +3 more
openaire   +1 more source

Wireless Multimedia Sensor Networks

2009
The emergence of low-cost and mature technologies in wireless communication, visual sensor devices, and digital signal processing facilitate of wireless multimedia sensor networks (WMSN). Like sensor networks which respond to sensory information such as temperature and humidity, WMSN interconnects autonomous devices for capturing and processing video ...
Ivan Lee, William Shaw, Xiaoming Fan
openaire   +1 more source

Multimedia Data Transport for Wireless Sensor Networks

2009 Next Generation Internet Networks, 2009
This paper presents the study and implementation of a reliable transport protocol for wireless multimedia sensor networks. The work was based on an existing transport protocol for sensor networks, the DTSN ("Distributed Transport for Sensor Networks") developed at Inesc within projects IST FP6 UbiSec&Sens, EuroFGI and FP7 EuroNF. For multimedia data
João Almeida, António Grilo 0001, Paulo Rogério Pereira   +2 more
openaire   +1 more source

Efficient multimedia transmission in wireless sensor networks

2012 International Symposium on Intelligent Signal Processing and Communications Systems, 2012
For Wireless Multimedia Sensor Networks (WMSN), how to increase the throughput in constrained environments has become the main challenge. Multipath routing is a promising solution because it can improve the channel utilization rate, reduce transmission delay and balance the transmission load. To pursue high efficiency for a multipath routing scheme, we
Bo-Yi Li, Po-Jen Chuang
openaire   +1 more source

Comparative analysis of wireless sensor networks with wireless multimedia sensor networks

2017 IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI), 2017
Wireless sensor networks (WSNs) abiding a huge quantity of inexpensive, low consumption and intense sensor nodes and sole or additional decline or base stations. Those nodes are tiny in dimension and can carry out numerous significant affairs, as well as event sensing, in order processing, and data communication.
Ahmed Mateen, Maida Sehar, Khizar Abbas, Muhammad Azeem Akbar   +3 more
openaire   +1 more source

Geographic Routing in Wireless Multimedia Sensor Networks

2008 Second International Conference on Future Generation Communication and Networking, 2008
In this paper, a two-phase geographic greedy forwarding (TPGF) routing algorithm is proposed in wireless multimedia sensor networks (WMSNs). TPGF is a pure geographic greedy forwarding routing algorithm, which does not include the face routing and does not use planarization algorithms.
Lei Shu 0001, Yan Zhang 0002, Laurence Tianruo Yang, Yu Wang 0003, Manfred Hauswirth   +4 more
openaire   +1 more source

On multipath balancing and expanding for wireless multimedia sensor networks

International Journal of Ad Hoc and Ubiquitous Computing, 2009
Multiple disjointed paths have been demonstrated to be effective in delivering multimedia traffic in wireless sensor networks, and improving the network performance in terms of bandwidth aggregation, reliability and network lifetime. In this paper, we investigate the use of directional geographical routing for multipath construction for multimedia data
Min Chen 0003, Victor C. M. Leung, Lei Shu 0001, Han-Chieh Chao   +3 more
openaire   +1 more source