Estimate and plot the probability of error

Assignment Help Electrical Engineering

Reference no: EM131408912

Simulation of Asynchronous CDMA system

Repeat Problem 15.2 when the four users transmit asynchronously. For example, simulate the case when the four-user CDMA signals are offset in time by one chip relative to one of the other signals. That is, the CDMA signal of user 2 is delayed by one chip relative to the first user, the CDMA signal of user 3 is delayed by one chip relative to the signal of user 2, and the CDMA signal of user 4 is delayed by one chip relative to the signal of user 3. Compare the error probability obtained with asynchronous transmission to that obtained with synchronous transmission.

Problem 15.2

Simulation of Synchronous CDMA System

Write a MATLAB program that performs a Monte Carlo simulation of four time synchronous CDMA users when each user employs a distinct Gold sequence of length L = 31. The four Gold sequences are as follows:

The users employ the binary (±1) modulation of their representative Gold sequences with the number of chips per bit equal to 3 1. The receiver for each user correlates the composite CDMA received signal, which is corrupted by additive white Gaussian noise (added on a chip-by-chip basis) with their respective sequence. Using Monte Carlo simulation with N = 10,000 information bits, estimate and plot the probability of error for each user as a function of SNR.

Reference no: EM131408912

Questions Cloud

Examine whether poster size photos be equally effective : At the 0.01 level of significance, examine whether the poster-size photos could be equally effective in attracting customers into the store. Using the appropriate statistical table, what is the most accurate statement that can be made about the p-..

What is the processing gain for the system : In the case of a partial-band interference, what is the bandwidth occupancy for worst-case performance?

Problem regarding the photovoltaic panels : A semiconductor-based solar cell is any man-made structure that converts solar energy into electricity. An example would be the solar panels for use on rooftops. Solar panels are also called photovoltaic panels. Photosynthesis is used by plants to..

Moderate to vigorous physical exercise program : 1. What are some of the benefits of a moderate to vigorous physical exercise program? 2. The following list of things include some things to consider when beginning an exercise program. Even if you have an exercise program in place, which of the fo..

Estimate and plot the probability of error : Using Monte Carlo simulation with N = 10,000 information bits, estimate and plot the probability of error for each user as a function of SNR.

What the costs of the revco bankruptcy will be : What the costs of the Revco bankruptcy will be, and how long you expect before Revco will emerge from bankruptcy. Write your answers in a 850 to 1000-word report and cite your sources.

Whether there has been significant improvement in rating : Given the following before-and-after ratings, use the 0.05 level in determining whether there has been a significant improvement in the ratings received by the instructor.

Compute and graph the periodic autocorrelation function : Write a MATLAB program that implements an m = 12-stage maximum-length shift register and generate three periods of the sequence. Compute and graph the periodic autocorrelation function of the equivalent bipolar sequence given by Equation

User Account

All Pages