Cellular device networks must support a large number of users from each wireless tower and so rely extensively on multiplexing technologies. Research current cellular device technology and describe at least three different types of multiplexing employed. You should both explain the multiplexing technique in general and describe how it is employed within the cellular device network. Noise, cross-talk, and other forms of interference are a significant issue in any communications infrastructure. Compare and contrast how this problem would manifest for analog data transmitted with an analog signal, for analog data transmitted with a digital signal, for digital data transmitted with an analog signal, and for digital data transmitted with a digital signal. Be sure to compare the quality of the resulting communication as well as the physical description. Compare and contrast parity check, checksum, and hamming code. Include both error detection and error correction considerations. For the network that you have chosen to characterize, identify at least two specific points where you think noise or other signal integrity issues may be impacting the infrastructure. For each, identify at least one appropriate strategy for error prevention to address the issue.
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