Describe the effect of the topology and morphology

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Reference no: EM132359453

Telecommunication Modelling and Simulation

Unit Learning Outcomes covered in this assessment a. Design, analyze and evaluate wireless mobile communication systems;

b. Research and analyze recent developments, and relate them to the principles of mobile network design and network management;

c. Apply engineering techniques, tools and resources to plan and model cellular networks;

1- Purpose of the Task:

The purpose of this assignment is to motivate students to seek to understand the fundamental principles in the design and analysis of mobile cellular communications systems

2- Description of the assessment:

Answer all 3 questions below

QUESTION 1
The mobile user equipment (UE) and the evolved Node B (eNB) specified in Table 1 are used in LTE cellular network operating in a large city at 2.6GHz (i.e. LTE band 7: 2500 MHz-2570 MHz (UL) & 2620 - 2690 MHz (DL)]. Using the Hata's model, calculate the following:

a) The maximum cell radius for forward link (eNB-UE) and zero fade margin (i.e. RX threshold = - 110 dBm).

b) The maximum cell radius for the reverse link (UE-eNB) for a zero fade margin (i.e. RX threshold
= -114 dBm).

c) Having calculated the forward and reverse links, is the link balanced? (justify yes or no)

d) A fade margin must be allowed for proper operation of the cellular system. State the reason for that.

e) What is the maximum cell radius of the forward and reverse link if a fade margin of 8 dB is used?

eNB:

Frequency band Transmitter power Receiver threshold Antenna gain Antenna height

Feeder loss (transmitter to antenna)

 

2.6 GHz 55 Watts

-110 dBm

12 dBd

60 m

2 dB

UE:

Transmitter power Receiver threshold Antenna gain

Antenna height

 

1 Watt

-114 dBm

1dBd

1.5 m

Table 1 : The mobile user equipment (UE) and the evolved Node B (eNB) specification

QUESTION 2

Figure 1 shows a cellular mobile telecommunication network. The cell radius is 5 km and the numbering of one cluster only is shown.

a) Number the remainder of the cell sites for this configuration to keep the co-channel interference to the barest minimum.

b) What is the frequency reuse distance for this configuration?

c) The eNB at a cell site can use either directional or omnidirectional antennas or both. Give reasons for the choice of any of antenna configuration. On what basis did you make your choice?

d) How would you increase the radio coverage of a cell? List and briefly explain three methods. Discuss the pros and cons of each choice.

e) If increasing the radio coverage of one cell resulted in an unacceptable level of co-channel interference. How would you go about reducing the interference to achieve an acceptable network operation?

392_Cell plan of a cellular system.jpg

Figure: Cell plan of a cellular system

QUESTION 3

Assume that you have been hired to design a mobile cellular network based on LTE-Advanced (aka LTE-A) to serve Melbourne CBD. You are expected to use CelPlanner software for your design and analysis. The system operates in the LTE FDD Band 14 [i.e. 788 MHz - 798 MHz (uplink) and 758 MHz - 768 MHz (downlink)].

Use carrier bandwidth of 1.4 MHz. Do some research and describe the effect of the topology and morphology of the coverage area and state how LTE-A models the terrain using CelPlanner. Your report should include images from CelPlanner screen and explanation of the various choices that you have made.

Verified Expert

"this solution is about the design, evaluation and analysis of wireless communication system. In this work task 1 represents the practical aspects of mobile network designing by using hata's model. Whereas, task 2 gives the idea about cell radius, antenna use and cellular pattern for the given situation. In Task 3, topology and morphology effects have been analysed. "

Reference no: EM132359453

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Reviews

len2359453

8/23/2019 1:41:23 AM

please read the instructions carefully before starting the assignment. There are 3 questions in this assignment and you have to solve all the questions with quality of figure, comments and meaningful name of that figure.

len2359453

8/23/2019 1:40:56 AM

Comment Excellent Marking scale 80% + Students demonstrates an excellent understanding of the problem, and solution steps are excellently made with reflection on system’s design. Student also demonstrates critical thinking skill. Writing style is also great looking (no typos, no grammatical issues). There is no copy-and-pasting in the presented work. There are no unnecessary digressions. Resources have been used to demonstrate research and initiation and are properly referenced using IEEE referencing style.

len2359453

8/23/2019 1:40:47 AM

Submission Guidelines • All work must be submitted on Moodle by the due date along with a completed Assignment Cover Page. • The assignment must be in MS Word format, 1.5 spacing, 11-pt Calibri (Body) font and 2 cm margins on all four sides of your page with appropriate section headings. • Reference sources must be cited in the text of the report, and listed appropriately at the end in a reference list using IEEE referencing style. Student required to submit their answers for this assignment using given format and following the General Guidelines for Presentation of Academic Work. A. Successful completion of all 3 questions B. Quality of figures a) Comments b) Meaningful names C. The assignment must be submitted in soft (electronic) copy on MIT Moodle.

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