Performance of The Wireless System of Prob
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Performance of The Wireless System of Prob
This problem compares the performance of the wireless system of Prob. 4.4-14 to wire line systems using coaxial and fiber optic cables.
Compute the coaxial cable loss in dB for the 50 km distance using an attenuation of 0.1 dB/m.
What is the net loss for the wireless system of Prob. 4.4-14; that is, find the net loss between the transmit and receive antenna input ports.
Would repeater amplifiers be necessary in the cable system?
Repeat (a) and (b) for the case of a 500-m path length.
Repeat (a) and (b) for a 500-m path at 300 MHz for a cable attenuation of 0.14 dB/m. The antenna gains are the same.
Compute the loss in dB for distances of 50 km and 500 m of a fiber optic cable with an attenuation of 1 dB/km.
Tabulate numerical results.
Problem 4.4-14
A cellular telephone base station transmitter at 850 MHz delivers 20 W into a 10-dB gain antenna. Compute the power in W available from a 3-dB gain mobile receiving antenna 20 km away assuming free space propagation conditions.
Performance of The Wireless System of Prob
RUBRIC
Excellent Quality
95-100%
Introduction 45-41 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Literature Support
91-84 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Methodology
58-53 points
Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.
Average Score
50-85%
40-38 points
More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.
83-76 points
Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.
52-49 points
Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.
Poor Quality
0-45%
37-1 points
The background and/or significance are missing. No search history information is provided.
75-1 points
Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.
48-1 points
There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met
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Performance of The Wireless System of Prob