Multi - User Information Theory Dec 05 , 2011 Lecture 4
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چکیده
i−1 1) Fig. 1. Relay channel. The user, aided by the relay, sends the message M to the receiver. The relay channel is a channel in which there is one sender and one receiver with an intermediate node that acts as relay to help the communication. The channel model consists of four finite sets X , X 1 , Y, Y 1 , and a collection of conditional pmfs p(y, y 1 |x, x 1) on X × X 1 × Y × Y 1. The sender X wishes to send a message M to receiver Y with the help of the relay (X 1 , Y 1). The meaning of the channel transition pmf p(y, y 1 |x, x 1), is that the channel output at i−1 1 , x i−1 , x i−1 1) = p(y, y 1 |x, x 1) (1) Thus we have the Markov relation
منابع مشابه
Multi - user information theory 2 Lecture 6
The broadcast channel is a communication channel in which there is one sender and several receivers, as presented in Fig. 1. The broadcast channel (BC) was first introduced by Cover [4].
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تاریخ انتشار 2011