ISSN 2996-8223
International Journal of Computer Science and Technology | Vol. 6, No. 5, May 2004 | pp. 33–40
DOI: 10.46882/2004/IJCST/000058
Article Type: Original Research Paper
Title: Cross-Layer Design Optimization for Energy-Constrained Wireless Video Sensor Networks
Names of Authors: Liam O'Connor¹, Fatima Al-Suwaidi²
Authors’ Affiliations: ¹School of Computer Science, Trinity College Dublin, Ireland; ²Department of Electrical Engineering, United Arab Emirates University, Al Ain, UAE
Abstract: Capturing and transmitting digital video streams over wireless sensor networks introduces extreme power drains, severely limiting node operational lifetimes. This study outlines an integrated cross-layer design framework that coordinates parameters across the application, transport, and MAC layers simultaneously. The architecture uses an adaptive H.263 video encoder that changes quantization parameters based on real-time channel bit error rates and residual battery metrics. Network validation tests using an array of embedded CMOS sensor nodes showed that our cross-layer paradigm extends individual node operational lifetimes by 34.6% compared to decoupled, standard layer configurations. The structural peak signal-to-noise ratio (PSNR) of the received video streams remained above 32.4 dB under high channel interference conditions. This optimization minimizes packet drop penalties by 21.2%, offering a robust strategy for long-term remote surveillance networks.
Keywords: Wireless Video Sensor Networks, Cross-Layer Design, Energy Conservation, Adaptive Video Encoding, Network Lifetime
Manuscript Timeline: Received: February 11, 2004; Revised: March 29, 2004; Accepted: April 19, 2004; Published: May 10, 2004
Citation: O'Connor, L., & Al-Suwaidi, F. (2004). Cross-Layer Design Optimization for Energy-Constrained Wireless Video Sensor Networks. International Journal of Computer Science and Technology, 6(5), 33–40.
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