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We consider a cross-layer design approach for CDMA mobile wireless networks supporting heterogeneous compressed video. By considering the resource requirements as the aggregate of the products of source coding rates and the energy per information bit to noise ratio, we propose a cross-layer optimization approach for video delivery over CDMA cellular networks. In particular, we describe a joint source coding-power control (JSCPC) strategy used in conjunction with joint source-channel coding (JSCC) and employing the class of rate-compatible punctured convolutional (RCPC) codes to provide forward error correction (FEC) coding. We show that this cross-layer approach can simultaneously maximize the quality of the delivered video while minimizing the total resource consumption, thereby providing higher spectral efficiency and improved network utilization. We demonstrate the efficacy of this approach using the ITU-T H.263+ video coder.
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th (Volume:5 )
Date of Conference: 6-9 Oct. 2003