In this assignment, the objective is to select the type of modulation (PSK, FSK) and modulation order (M) ofa system with the following specifications:Total bandwidth available: 1 MHzBit-rate for a user: 10 kbits/sDetector Type: CoherentPulse-shape: raised-cosine pulse with 50% extra bandwidthAvailable SNR (max.): 10 dBPermissible probability of bit-error (max): 10-3Number of users at an instant: as much as possibleYou must justify your selection by comparing the different options in terms of the number of users that canbe accommodated in a bandwidth of 1 MHz. It may be noted that the system can transmit only limited powerand therefore maximum available SNR can’t be increased to more than 10 dB. Once the bandwidthrequirement of a single user has been calculated, the maximum number of users can be determined. Moreover,if the service provider charges are known, the total daily or monthly revenue can be calculated. For simplicity,we can assume that at any given instant, maximum number of users are accessing the spectrum.Tasks1) To compare the available options and select appropriate modulation type and order.2) To calculate the number of users that can be accommodated with the selected specifications of the system3) To calculate the monthly revenue generated if the service provider charges each user Rs. 2/- for everyminute of the spectrum usage. Assume that maximum number of users is served round the clock.4) To propose a resource sharing scheme to maximize the revenue

To compare the available options and select appropriate modulation type and order: To compare the available options and select the appropriate modulation type and order, we need to consider the given specifications. The options are PSK (Phase Shift Keying) and FSK (Frequency Shift Keying). We need to choose the modulation type and order that can accommodate the maximum number of users in a bandwidth of 1 MHz, while also considering the maximum available SNR of 10 dB and the permissible probability of bit-error of 10^-3.

To calculate the number of users that can be accommodated with the selected specifications of the system: To calculate the number of users that can be accommodated with the selected specifications of the system, we first need to calculate the bandwidth requirement for a single user. This can be done by considering the bit-rate for a user, which is 10 kbits/s, and the pulse-shape, which is a raised-cosine pulse with 50% extra bandwidth. By using the formula for bandwidth requirement, we can determine the bandwidth required for a single user. Then, by dividing the total available bandwidth of 1 MHz by the bandwidth requirement for a single user, we can calculate the maximum number of users that can be accommodated.

To calculate the monthly revenue generated if the service provider charges each user Rs. 2/- for every minute of the spectrum usage: To calculate the monthly revenue generated, we need to know the maximum number of users that can be served round the clock. Assuming that the maximum number of users is served round the clock, we can calculate the total number of minutes in a month. Then, by multiplying the total number of minutes by the service provider charge of Rs. 2/- per minute, we can calculate the monthly revenue generated.

To propose a resource sharing scheme to maximize the revenue: To propose a resource sharing scheme to maximize the revenue, we can consider techniques such as time-division multiple access (TDMA) or frequency-division multiple access (FDMA). These techniques allow multiple users to share the available spectrum by dividing it into different time slots or frequency bands. By efficiently allocating the resources to different users, we can maximize the revenue generated by accommodating as many users as possible while ensuring reliable communication.