From Signals to Packets Analog signal “ Digital” Signal Bit stream 00101110001 Packets 0l000l0l0l0l1001010101010ll01l100000011l01010l1l0101010l01010l1010111001 Header/body Header/body Header/body Packet Transmission Sender Receiver 33 From Signals to Packets Analog Signal “Digital” Signal Bit Stream 0 0 1 0 1 1 1 0 0 0 1 Packets 0100010101011100101010101011101110000001111010101110101010101101011010111001 Header/Body Header/Body Header/Body Sender Receiver Packet Transmission