An Energy-Efficient Data Compression and Transmission Scheme in Wireless Multimedia Sensor Networks
In recent years, the demand of multimedia data in wireless sensor networks has been significantly increased for the environment monitoring applications that utilize sensor nodes to collect multimedia data such as sound and video. However, the amount of mu
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Abstract In recent years, the demand of multimedia data in wireless sensor networks has been significantly increased for the environment monitoring applications that utilize sensor nodes to collect multimedia data such as sound and video. However, the amount of multimedia data is very large. Therefore, if the data transmission schemes in traditional wireless sensor networks are applied in wireless multimedia sensor networks, the network lifetime is significantly reduced due to excessive energy consumption on particular nodes. In this paper, we propose a novel energy-efficient data compression scheme for multimedia data transmission in wireless sensor networks. The proposed scheme compresses and splits the multimedia data using the Chinese Remainder Theorem (CRT) and transmits the bit-pattern packets of the remainder to the base station. As a result, it can reduce the amount of the transmitted multimedia data. To show the superiority
J. Park School of Information and Communiacation Engineering, Chungbuk National University, 52 Naesudong-ro, Heungdeok-gu, Cheongju, South Korea e-mail: [email protected] D. Seong BOAS Electronics Inc., Industrial Technology Research Park, 52 Naesudong-ro, Heungdeok-gu, Cheongju, South Korea e-mail: [email protected] B. Lee Department of E-Business, Paichai University, 155-40 Baejae-ro (Doma-Dong), Seo-Gu, Daejeon, South Korea e-mail: [email protected] J. Yoo (&) School of Information and Communiacation Engineering, Chungbuk National University and CBITRC, 52 Naesudong-ro, Heungdeok-gu, Cheongju, South Korea e-mail: [email protected]
S.-S. Yeo et al. (eds.), Computer Science and its Applications, Lecture Notes in Electrical Engineering 203, DOI: 10.1007/978-94-007-5699-1_79, Ó Springer Science+Business Media Dordrecht 2012
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of our proposed scheme, we compare it with the existing scheme. Our experimental results show that our proposed scheme reduces about 71 % in the amount of transmitted data and increases about 188 % in the ratio of surviving nodes over the existing scheme on average. Keywords Wireless multimedia sensor networks Energy efficiency
Chinese remainder theorem
1 Introduction In recent, with the development of hardware technologies and monitoring schemes, the applications for gathering multimedia data such as sound and image using multimedia sensors have been increased [1]. As the multimedia data are very large over simple data in traditional sensor networks, the network lifetime of the sensor network is significantly reduced due to excessive energy consumption in particular nodes for transmitting the data. In addition, the multimedia data increase the data transmission time and decline the data reception ratio. Consequently, the existing schemes based on the traditional sensor networks are not suitable for the environments to collect the multimedia data. Therefore, the multi-path transmission schemes have been used in the wireless multimedia sensor networks [1, 2]. The existing multi-path transmission schemes split the data into sev
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