What is Communication? "The fundamental problem of communication is that of reproducing at one point either exactly or approximately a message selected at another point. -- C.E.Shannon,"A mathematical theory of communication"Bell System Technical Journal,1948 Meixia Tao SJTUMeixia Tao @ SJTU What is Communication? “The fundamental problem of communication is that of reproducing at one point either exactly or approximately a message selected at another point.” -- C. E. Shannon, “A mathematical theory of communication” Bell System Technical Journal,1948