{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

EE597_Homework1_spring13

# EE597_Homework1_spring13 - Homework 1 EE 597 Wireless...

This preview shows pages 1–2. Sign up to view the full content.

Homework 1 EE 597: Wireless Networks (Spring 2013) Due: Feb 7, 2013 1. (Decibel practice) a) Write the following in dB : (use log 10 2=0.3 if needed) 1000 20 (1000/20) 400 10 (400*10) b) Covert the following powers into dBm: 1W 1e-10W 1 dBW c) x is 20dB, calculate the following in dB: y=x 2 y=1/x y = 2x 2. (Outage probability for Rayleigh fading) a) Assume a Rayleigh fading channel with the average signal power Pr = -80 dBm. What are the outage probabilities of this channel relative to the received power thresholds 90 and -100 dBm? b) Assume an application that requires a power outage probability of 1% for the threshold Po = 80 dBm, For Rayleigh fading, what value of the average signal power is required? 3. (Path loss and Log Normal Shadowing/Fading) Consider the following table showing path-loss measurements at different distances: Distance from Transmitter Pr / Pt 5m -60dB 25m -80dB 65m -105dB 110m -115dB 400m -135dB 1000m -150dB a) Find the best fit parameters of a simplified path-loss model plus log-normal shadowing that best fits the above data. b) Predict the path loss at 2km based on this model.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern