TY - JOUR
T1 - Index-based selective audio encryption for wireless multimedia sensor networks
AU - Wang, Honggang
AU - Hempel, Michael
AU - Peng, Dongming
AU - Wang, Wei
AU - Sharif, Hamid
AU - Chen, Hsiao Hwa
N1 - Funding Information:
Manuscript received May 23, 2009; revised December 01, 2009. First published January 26, 2010; current version published March 17, 2010. This work was supported in part by the U.S. National Science Foundation Grant for wireless sensor networks research (No. 0707944) and in part by a Taiwan National Science Council Grant (No. NSC98-2219-E-006-011). The associate editor co-ordinating the review of this manuscript and approving it for publication was Dr. Qian Zhang.
PY - 2010/4
Y1 - 2010/4
N2 - Wireless multimedia sensor networks (WMSNs) support many acoustic applications for audio surveillance, animal tracking/vocalization, human health monitoring, etc. However, resource constraints in sensor networks (such as limited battery power, bandwidth/computation capability, etc.) pose challenges for the quality and security of audio data transmission and processing. The security is a critical issue since audio information can be accessed or even manipulated in WMSNs. In order to ensure security, audio quality and energy efficiency, we propose an index-based selective audio encryption scheme for WMSNs. The scheme protects data transmissions by incorporating both resource allocation and selective encryption based on modified discrete cosine transform (MDCT). In this proposed scheme, the audio data importance is leveraged using the MDCT audio index, and wireless audio data transmission proceeds with energy efficient selective encryption. The simulation results show that the proposed approach offers a significant gain in terms of energy efficiency, encryption performance and audio transmission quality.
AB - Wireless multimedia sensor networks (WMSNs) support many acoustic applications for audio surveillance, animal tracking/vocalization, human health monitoring, etc. However, resource constraints in sensor networks (such as limited battery power, bandwidth/computation capability, etc.) pose challenges for the quality and security of audio data transmission and processing. The security is a critical issue since audio information can be accessed or even manipulated in WMSNs. In order to ensure security, audio quality and energy efficiency, we propose an index-based selective audio encryption scheme for WMSNs. The scheme protects data transmissions by incorporating both resource allocation and selective encryption based on modified discrete cosine transform (MDCT). In this proposed scheme, the audio data importance is leveraged using the MDCT audio index, and wireless audio data transmission proceeds with energy efficient selective encryption. The simulation results show that the proposed approach offers a significant gain in terms of energy efficiency, encryption performance and audio transmission quality.
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U2 - 10.1109/TMM.2010.2041102
DO - 10.1109/TMM.2010.2041102
M3 - Article
AN - SCOPUS:77949708807
SN - 1520-9210
VL - 12
SP - 215
EP - 223
JO - IEEE Transactions on Multimedia
JF - IEEE Transactions on Multimedia
IS - 3
M1 - 5398918
ER -