TY - GEN
T1 - Collaborative image transmissions based on region and path diversity in wireless sensor network
AU - Wang, Honggang
AU - Peng, Dongming
AU - Wang, Wei
AU - Sharif, Hamid
AU - Chen, Hsiao Hwa
PY - 2007
Y1 - 2007
N2 - Many Sensor applications such as monitoring and surveillance may require image sensor array to conduct collaborative image transmissions in Wireless Sensor Networks (WSN). The large size image transmissions cause bottlenecks in WSN due to the limited energy resources and network capacity. In this paper, we propose a collaborative transmission scheme for image sensors to utilize inter-sensor correlations to decide transmission patterns based on transmission path diversities, which achieves minimal energy consumption, balanced sensor lifetime and required image quality. This optimization scheme not only allows each image sensor to transmit optimal fractions of the overlapped images through appropriate transmission paths in energy-efficient way, but also provides unequal protection on the overlap image regions through path selections and resource allocations to achieve good transmission image quality. The simulation results show that the proposed image transmission scheme can achieve considerable gains in terms of the network lifetime extension, image distortion reduction, and energy efficiency.
AB - Many Sensor applications such as monitoring and surveillance may require image sensor array to conduct collaborative image transmissions in Wireless Sensor Networks (WSN). The large size image transmissions cause bottlenecks in WSN due to the limited energy resources and network capacity. In this paper, we propose a collaborative transmission scheme for image sensors to utilize inter-sensor correlations to decide transmission patterns based on transmission path diversities, which achieves minimal energy consumption, balanced sensor lifetime and required image quality. This optimization scheme not only allows each image sensor to transmit optimal fractions of the overlapped images through appropriate transmission paths in energy-efficient way, but also provides unequal protection on the overlap image regions through path selections and resource allocations to achieve good transmission image quality. The simulation results show that the proposed image transmission scheme can achieve considerable gains in terms of the network lifetime extension, image distortion reduction, and energy efficiency.
UR - http://www.scopus.com/inward/record.url?scp=39349113321&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=39349113321&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2007.187
DO - 10.1109/GLOCOM.2007.187
M3 - Conference contribution
AN - SCOPUS:39349113321
SN - 1424410436
SN - 9781424410439
T3 - GLOBECOM - IEEE Global Telecommunications Conference
SP - 971
EP - 975
BT - IEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
T2 - 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Y2 - 26 November 2007 through 30 November 2007
ER -