scholarly journals Preprocessing Techniques for High-Efficiency Data Compression in Wireless Multimedia Sensor Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Junho Park ◽  
Jaesoo Yoo
Keyword(s):  
Sensor Networks ◽  
Data Compression ◽  
High Efficiency ◽  
Wireless Multimedia Sensor Networks ◽  
Multimedia Data ◽  
Wireless Multimedia ◽  
Compression Scheme ◽  
Multimedia Sensor Networks ◽  
Second Stage ◽  
Efficiency Data

We have proposed preprocessing techniques for high-efficiency data compression in wireless multimedia sensor networks. To do this, we analyzed the characteristics of multimedia data under the environment of wireless multimedia sensor networks. The proposed preprocessing techniques consider the characteristics of sensed multimedia data to perform the first stage preprocessing by deleting the low priority bits that do not affect the image quality. The second stage preprocessing is also performed for the undeleted high priority bits. By performing these two-stage preprocessing techniques, it is possible to reduce the multimedia data size in large. To show the superiority of our techniques, we simulated the existing multimedia data compression scheme with/without our preprocessing techniques. Our experimental results show that our proposed techniques increase compression ratio while reducing compression operations compared to the existing compression scheme without preprocessing techniques.

scholarly journals Robust Evolutionary-Game-Based Routing for Wireless Multimedia Sensor Networks

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3544 ◽  
Author(s):  
Md Arafat Habib ◽  
Sangman Moh
Keyword(s):  
Energy Efficiency ◽  
Sensor Networks ◽  
Evolutionary Game ◽  
Wireless Multimedia Sensor Networks ◽  
Multimedia Data ◽  
Sensor Nodes ◽  
Delivery Ratio ◽  
Wireless Multimedia ◽  
Multimedia Sensor Networks ◽  
Multiple Sinks

Nowadays, wireless multimedia sensor networks (WMSNs) are used in various applications. An energy-efficient and robust routing protocol is essential for WMSNs because the quality of service is important for traffic-intensive multimedia data, such as images and videos. A WMSN with multiple sinks allows cluster heads (CHs) to deliver the collected data to the nearest sink, thereby mitigating the delivery overhead. In this study, we propose a novel evolutionary-game-based routing (EGR) protocol for WMSNs with multiple sinks, in which the evolutionary game theory is exploited for selecting CHs. In EGR, an algorithm to mitigate data redundancy, based on the overlapping field of views of the multimedia sensor nodes, is also presented. This algorithm decreases the number of redundant transmissions, thereby increasing energy efficiency and network performance. According to the performance evaluation results of this study, the proposed EGR significantly outperforms the state-of-art protocols in terms of energy efficiency, end-to-end delay, packet delivery ratio, cluster formation time, and network lifetime.

A Survey on QoS-Aware Secure Data Transmission in Multimedia Sensor Networks

2014 ◽  
Vol 511-512 ◽  
pp. 120-125
Author(s):  
Qian Ye ◽  
Meng Wu ◽  
Yu Fei Wang
Keyword(s):  
Sensor Networks ◽  
Information Security ◽  
Data Transmission ◽  
Wireless Multimedia Sensor Networks ◽  
Multimedia Data ◽  
Wireless Multimedia ◽  
Multimedia Sensor Networks ◽  
Secure Data Transmission ◽  
The Status ◽  
Open Issues

QoS assurance and information security are important for multimedia data transmission in wireless multimedia sensor networks. First, the status of multimedia sensor networks was introduced. Then research status of QoS assurance and information security of wireless multimedia sensor networks was surveyed, and the related open issues were also analyzed. Finally, the technology routes to solve the open issues were also studied and discussed. We argue that trusted QoS architecture considering various applications with different QoS requirements is important for wireless multimedia sensor networks. And network conditions and protocol layers must be well designed in QoS-aware secure multimedia routing mechanism to satisfy QoS requirements of multiple traffic classes. Technologies of information hiding, multimedia data resolution, and multi-routing can be used for privacy protection in wireless multimedia sensor networks.

Enabling Wireless Multimedia Sensor Networks

2011 ◽  
pp. 17-35 ◽  
Author(s):  
Jing Wang
Keyword(s):  
Sensor Networks ◽  
Wireless Multimedia Sensor Networks ◽  
Multimedia Data ◽  
Cross Layer Design ◽  
Wireless Multimedia ◽  
Energy Efficient Routing ◽  
Privacy And Security ◽  
Open Problems ◽  
Multimedia Sensor Networks ◽  
Critical Components

Wireless sensor networks have seen a wealth of research efforts and practical implementations in recent years. With the advance of CMOS cameras and microphones, wireless multimedia sensor networks are proposed to be a promising solution to a variety of applications in surveillance and intrusion detection, smart traffic control, automated health care, environmental monitoring, and so forth. It is composed of wirelessly connected small devices, which are able to capture multimedia data from the surrounding environment, besides its capabilities of processing the multimedia data using the embedded CPU and transmitting data to the sink through wireless communication. In this chapter, we firstly address features of WMSNs and challenges facing the realization of WMSNs by introducing two experimental applications of WMSNs. As energy efficient routing and distributed source coding are two critical components for the success of WMSNs, we discuss existing work in these two areas subsequently, in order to reveal details about the challenges and potential solutions to the problems posed by WMSNs. At the end of this chapter, open problems on cross-layer design, quality of information and privacy and security are briefly discussed.

scholarly journals Cross-layer Rate Adjusted Congestion Controlled Protocol for Wireless Multimedia Sensor Networks

2019 ◽  
Vol 9 (1) ◽  
pp. 4042-4046
Keyword(s):  
Sensor Networks ◽  
Transmission Rate ◽  
Base Station ◽  
Wireless Multimedia Sensor Networks ◽  
Multimedia Data ◽  
Sensor Nodes ◽  
Cross Layer ◽  
Wireless Multimedia ◽  
Traffic Condition ◽  
Multimedia Sensor Networks

Wireless Multimedia Sensor Networks (WMSNs) consists of set of sensor nodes which can capture multimedia data as well as scalar data from the target region and transmit to the base station. The type and nature of traffic generated in WMSNs leads to congestion and it can cause substantial loss of data packets, reduced throughput and wastage of energy. In order to overcome the challenge, a cross layer protocol which adjusts the rate of transmission is proposed in this paper. As per the information provided by the MAC layer regarding buffer availability and channel traffic condition, the proposed protocol adjusts the channel access along with transmission rate of the nodes. The simulation results reveal that the proposed protocol performs better than the existing protocols with respect to packet loss, throughput and energy.

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