TY - GEN
T1 - A cross layer resource allocation scheme for secure image delivery in wireless sensor networks
AU - Wang, Wei
AU - Peng, Dongming
AU - Wang, Honggang
AU - Sharif, Hamid
PY - 2007
Y1 - 2007
N2 - Selective encryption for secure image transmission is an important ongoing research area which aims to scramble the critical information correlation and inter-dependency within final image compression bit streams. However, how to take Unequal Error Protection (UEP) method for transmitting partially encrypted image data in error-prone communication channels is still an open research problem in Wireless Sensor Networks (WSN). In this paper, we propose a new cross layer optimization approach for energy efficient delivery of selectively encrypted images in WSN while assuring image quality. In the proposed approach, identified importance levels of diversity for encrypted procession blocks as well as position-value (P-V) information are extensively explored within image compression and encryption bit streams. Desirable BER, ARQ retry limit, transmission rate are jointly optimized across PHY, MAC and APP layers regarding the image distortion reduction bound and communication energy efficiency. Both image quality and security are assured while energy consumption is minimized. Simulations results have shown significant gain in image security assurance and transmission quality achievement with energy efficient communications in WSN.
AB - Selective encryption for secure image transmission is an important ongoing research area which aims to scramble the critical information correlation and inter-dependency within final image compression bit streams. However, how to take Unequal Error Protection (UEP) method for transmitting partially encrypted image data in error-prone communication channels is still an open research problem in Wireless Sensor Networks (WSN). In this paper, we propose a new cross layer optimization approach for energy efficient delivery of selectively encrypted images in WSN while assuring image quality. In the proposed approach, identified importance levels of diversity for encrypted procession blocks as well as position-value (P-V) information are extensively explored within image compression and encryption bit streams. Desirable BER, ARQ retry limit, transmission rate are jointly optimized across PHY, MAC and APP layers regarding the image distortion reduction bound and communication energy efficiency. Both image quality and security are assured while energy consumption is minimized. Simulations results have shown significant gain in image security assurance and transmission quality achievement with energy efficient communications in WSN.
KW - Cross layer optimization
KW - Selective encryption
KW - Unequal error protection
KW - Wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=36849084007&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36849084007&partnerID=8YFLogxK
U2 - 10.1145/1280940.1280973
DO - 10.1145/1280940.1280973
M3 - Conference contribution
AN - SCOPUS:36849084007
SN - 1595936955
SN - 9781595936950
T3 - IWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference
SP - 152
EP - 157
BT - IWCMC 2007
T2 - IWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
Y2 - 12 August 2007 through 16 August 2007
ER -