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A near-optimal multiuser joint speech source-channel resource-allocation scheme over downlink CDMA networks
2006
IEEE Transactions on Communications
In downlink of code-division multiple-access (CDMA) networks, the maximal number of real-time calls can be increased by smoothly increasing the end-to-end distortions. In this paper, a cross-layer optimization system is developed to control each user's distortion by adapting source coding rates, channel coding rates, and transmit powers. In addition, the channel-induced distortion is controlled to be only a small proportion of the total end-to-end distortion, such that the subjective quality of
doi:10.1109/tcomm.2006.878837
fatcat:zqzno5u3afffvphf5bw6qj7jt4