Week 2 iLab Report
DeVry University NETW360: Wireless Technologies and Services COMPUTE RF BEHAVIOR AND MIMO Submitted to: Andrian Turkey
Date: 9/13/2014
Compute RF Behavior
Calculate each of the five measurements in the project by performing every step in sequence. In your own words, summarize what you have learned concerning RF behavior.
Calculations
Step 4 (dBm of 1W): _______30_____________
Step 11 (max gain): _________8.4___________
Step 15 (.11g free space loss): _________-81.561______
Step 17 (.11a free space loss): __________-88.361_____
Step 19 (link budget): ________9.438999999999993______
Summary of RF Behavior
Well I figured obviously that using different types of frequency bands would result in different levels of dB loss but what the examples on the calculator showed me that the loss can be negligible depending on the tech used. Also when measuring the passive gain of an antenna the engineer is able to determine if the signal can reach its destination. This is important to do because if a signal can’t make it to its destination than this could be costly in terms of finance.
MIMO
Introduction
What is MIMO? What’s the history? What issues are addressed? What are the goals?
MIMO stands for multiple-input multiple-output (Mark Ciampa, 2013). The idea of MIMO first came out in the mid-1990s. It was theorized that performance for radio frequencies could be improved significantly by having multiple antennas that transmitted and received at the same time (Mark Ciampa, 2013).
Advantages – Disadvantages of MIMO
Some of the disadvantages of MIMO are Each antenna needs a RF unit ,Powerful digital signal processing unit required,Drains battery quickly on mobile devices,RF interference and antenna correlation,Thermal problems.Some of the advantages of MIMO are enhanced data throughput higher data rates over long distances, Requires multiple signal paths, and multipath resilience.
MIMO Applications
4G and LTE both...