Combined joint source-channel coding and channel estimation forimage transmissions over wireless channels

摘要

Joint source and channel coding (JSCC), multicarrier modulation(MCM) and diversity are some key techniques for multimedia transmissionover wireless channels. We investigate a joint source channel matching(JSCM) scheme for progressive image transmission in the MCM system usingmultiple antennas. The focus of this work is on the effect of thepractical channel estimation schemes on the JSCM algorithm. This isdifferent from other research on JSCC assuming perfectly known channelinformation. We propose a model-based channel estimation scheme and useit