Link Budget Analysis for High-Speed Wireless Data Link - Project

This project focuses on the analysis of a high-speed wireless data link's link budget, encompassing critical calculations and assessments. The solution begins by calculating the Free Space Path Loss (FSPL) at different distances and frequencies (2.4GHz and 5.8GHz), essential for understanding signal degradation. Subsequently, the total link budget is determined by computing the received power and link margin, considering antenna gains and losses. The analysis then evaluates the obtained link margin in relation to receiver sensitivity, determining the reliability and availability of the wireless connection, and recommending strategies to optimize the link by reducing total path loss. The project addresses key factors influencing radio system performance, such as output power, bandwidth, receiver sensitivity, antenna gains, and environmental conditions, offering a comprehensive understanding of wireless link design.

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LINK BUDGET ANALYSIS

WIRELESS 1
Answer- 1
Here there are two distances and frequencies at which total FSPL in dB will be calculated and it
can be achieved by using the following equation:
Now, put distance= 5KM and 10KM and frequency= 2.4GHz and 5.8GHz each time for
calculating total FSPL.
Now, at d= 5km and f= 2.4GHz
FSPL(dB)= 20log10(5km) + 20log10(2.4GHz) + 32.45
Or, FSPL (dB)= 114.03 dB
Similarly, other values can be obtained and these are defined in the below tabular form:
Answer-2
The total link budget can be calculated by determining the values of received power and link
margin and total path loss.
In which initially total path loss can be determined this is given below:
Put the values of d and frequency such as d= 5km and f= 5.8GHz
So, FSPL(dB)= 20*log10 (5) + 20*log10 (5.8 GHz) + 32.45= 121.70 dB

WIRELESS 2
It is stated that assume both transmitter and receiver antennas are the same so the total gain is
48 dBm. Now, put all these values in the formula of received power:
R.P. (dBm)= (23) + (48) - (121.70)
However, value of received power= -(50.70) dBm.
Now, link margin can be gathered by using above all data and facts and the below equations
can help the consumers for finding total link margin.
Or, Link margin= 21.30 dBm.
So, the total link budget at a 5KM distance is (-50.70) dBm.
Answer-3
This is a theoretical based question where analysis of the obtained link margin will be
performed and compare with the given table. It is argued that at a 5-kilometre distance the
amount of link margin is 21.30 dBm and it can be used for exchanging signals over a wireless
network. About the availability or reliability of the link, it is said that the calculated link margin
is still in the reliable situation because it provides 99% time availability that shows that the
signal can be effectively transferred from source to destination. Therefore, it is recommended
that users should ensure that they reduce total path loss as it depends on the link margin.

WIRELESS 3