QoS Guaranteed SVC-based Video Transmission over MIMO Wireless Systems with Channel State Information
This paper presents a novel scheme for QoS guaranteed video transmission based on scalable video coding (SVC) over multi-input multi-output (MIMO) wireless systems. The proposed scheme is able to not only guarantee the QoS (required BER for base and enhancement layers in compressed video) and but also maximize the system throughput. We assume that the estimated channel state information (CSI) at the receiver is available at the transmitter through feedback. In this scenario, under a transmit power constraint, optimal power allocation can be achieved to satisfy QoS-guaranteed maximum throughput by a combination of several operations. These operations include singular value decomposition (SVD) for decomposing the MIMO channel into equivalent parallel SISO channels, adaptive QAM-modulation, and channel adaptive sub-channel selection for the transmission of base and enhancement layers. We present in this paper with detailed analysis and simulation results to demonstrate that we can achieve QoS optimized video transmission over MIMO wireless systems based on scalable video coding.