An adaptive H.263+ rate control algorithm for interactive video communication with bandwidth renegotiation

Abstract

This paper presents a novel adaptive H.263+ rate control algorithm for interactive video communication under the networks supporting bandwidth renegotiation, which can communicate with end-users to accommodate their time-varying bandwidth requests during data transmission. They are especially suitable for the transmission of non-stationary video traffics. The proposed rate control algorithm communicates with the network to renegotiate the required bandwidth for the underlying video and choose their control strategies according to the renegotiation results. The proposed algorithm treats both the spatial and temporal qualities at the same time to enhance human visual perceptual quality. Experimental results are provided to demonstrate that the proposed rate control algorithms can achieve superior performance with a low computational.