Secure lossy source transmission over wiretap channel with channel side information

This paper deals with the design of a pure digital source-channel coding scheme for secure lossy transmission of a discrete memoryless source over a discrete memoryless degraded wiretap channel, where there are correlated source side information at the legitimate receiver and eavesdropper, and channel side information noncausally known at the transmitter. Using ideas from time sharing argument, double binning technique, Wyner-Ziv coding and Gelfand-Pinsker coding, a coding scheme is presented and its rate-equivocation-distortion inner bound is derived.