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A Broadcast Approach For Fading Wiretap Channels, Yingbin Liang, Lifeng Lai, H. Vincent Poor, Shlomo Shamai (Shitz)

Electrical Engineering and Computer Science - All Scholarship

A (layered) broadcast approach is studied for the fading wiretap channel without the channel state information (CSI) at the transmitter. Two broadcast schemes, based on superposition coding and embedded coding respectively, are developed to encode information into a number of layers and use stochastic encoding to keep the corresponding information secret from an eavesdropper. The layers that can be successfully and securely transmitted are determined by the channel states to the legitimate receiver and the eavesdropper. The advantage of these broadcast approaches is that the transmitter does not need to know the CSI to the legitimate receiver and the eavesdropper, …