1. Consider an OFDM implementation in the LTE cellular standard. LTE uses 15 kHz subcarriers and can use an OFDM symbol of 1024 subcarriers. The cyclic prefix can account for a 7% guard time; 600 subcarriers can be used for data transmission. The rest are needed for pilot and null subcarriers. (a) Calculate the number of guard symbols added by the cyclic prefix in case the cyclic prefix account for a 7% guard time. (b) For a transmission bandwidth of 20 MHz and 8 QAM calculate the data rate. (c) For a transmission bandwidth of 10 MHz and 16 QAM calculate the data rate.

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Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.