Wireless Networking Concepts

Solution

Assignment – Wireless Networking Concepts (ITC513_201960)

Subject Code: ITC513

Resources: Lecture Notes, Internet

Tools: GNU Octave, MS Office

Overview: The assessment includes two tasks, specifically deals in wireless communication system. The course focuses on the wireless networking concepts and plays a vital role to achieve the fluency in terms of important wireless parameters. The assessment will cover some of the vital parameters that are used to measure the performance of an antenna like Gain, Efficiency, Radiation Patterns and Antenna Directivity. Apart from this, the assessment deals in calculating received power and Gain for the transmitting antenna. Along with the this, a complete code is designed that will run in GNU Octave tool displaying all the calculations. The description of the task in terms of tasks are provided as underneath;

Task 1: In the initial task, all the parameters like gain, efficiency, radiation patterns are detected that are very crucial in terms of both transmitter and receiver side. To do this, the mathematical expressions are used that are studied in the form of lectures in the class. In addition, to monitor the impact, performance for each attribute is noticed in the wireless communication systems.

Task 2: This task will be designed in the form of code that will execute in GNU Octave tool to measure the power in watts and also the gain on the receiving antenna. After executing the code, the complete plots are extracted from the given attributes. The plotting and calculations are equally important for the task as they both are equally marked.

AA Assessment ITC513 201960 Value: 20% Due Date: 04-Dec -2019 Task 1 (10 Marks) In a wireless communication system, antennas play crucial role at both transmitter and receiver sides. Some of the important design parameters used to measure the performance of an antenna are Directivity, Gain , Efficiency and Radiation Patterns. Explain w ith reasonable examples, what is Antenna Directivity, Gain, Efficiency and Radiation Patterns . You may consider providing mathematical expressions as well as figures for the explanation of these parameters. You are also required to provide the impact of pe rformance of each parameter in a wireless communication system. (2.5 x 4 = 10 marks for properly explaining all four parameters) Task 2 (10 Marks) A wireless communication system is working at 10 GHz frequency where the transmit antenna is transmitting with 20mW of transmit power. A wireless receiver with an effective diameter of 250 cm is measuring the received power at distances from 1 to 20 km with an increment of 1km. The gain of the transmit antenna is 30 dB. What is gain of the receive antenna at 10GHz frequency? (2 marks) You are also required to calculate and plot the received power, P r, in Watts using GNU Octave. You are to show the GNU Octave code showing your calculations of P r and a plot showing P r versus distance from 1km up to 20km. (4 mark s for showing correct P r calculations with GNU Octave code) + (4 marks for plotting correctly P r as a function of distance) Marking criteria and standards Task HD (100% -85%) DI (84% -75%) CR (74% -65%) PS (64% -50%) FL (49% -0) Task 1: (10 marks ) An excellent and well written description of all four parameters, with appropriate example s, impact of each parameter in wireless system, mathematical expression and figures. Proper references (if used) are provided. An excellent and well written description of all four parameters, with example s, im pact of each parameter in wireless system, mathematical expression and figures. Some references prov ided (if used). Overall good description of most of the parameters, with some example s, some description on impact of each parameter in wireless system, some mathematical expression and figures. An acceptable description of at least two parameters, with example, impact of each parameter in wireless system, mathematical expression and figures. No description or incorrect description of the task provided. Task 2: (10 marks ) All calculations are correctly done. GNU Octave working code for the c alculations as well as for plot is provided . Plot is properly labelled. All calculations are correctly provided. Some pa rts of the code may not be correctly working. Some labels in the plot may not be correctly provided. Either receive antenna gain or receive pow er calculations are no t correct or not provided. Plot is correct and labels are correct. Receive antenna gain or receive power or receive power plot is either missing or incorrect. At least two out of three asked tasks are attempted and evidenced in t he report. The calculations are not correct and the plot is not correct.