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Using a broadcast channel to transmit clients' data requests may impose privacy risks. In this paper, we tackle such privacy concerns in the index coding framework. We show how a curious client can infer some information about the requests and side information of other clients by learning the encoding matrix used by the server. We propose an information-theoretic metric to measure the level of privacy...
The Pliable Index Coding problem is a recently proposed new formulation of the Index Coding problem where each client wants any one message that it does not have and the server tries to “satisfy” all the clients using the side information sets of each of the clients by broadcasting coded messages. We present two generalizations of the problem. Firstly, we consider the problem of each client requiring...
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