On the Design of Multiresolution Joint Source-Channel Coding with Feedback for Wireless Communications

摘要

In this paper, we present a multiresolution joint source and channel coding (MR-JSCC) scheme with feedback for wireless communications (both shadowing and Rayleigh fading are considered). The transmitter and receiver can match the resolution of each other synchronously, according to the channel state information (CSI). Different bandwidth requirement could be met by carefully adjusting the resolution thresholds. The threshold determination algorithm is outlined. Simulation results show that MR-JSCC scheme has much better performances than baseline-I (No UEP and No feedback) and baseline-II (UEP without feedback).