What is the cyclic prefix length

Assignment Help Electrical Engineering

Reference no: EM13219152

An OFDM system with a passband bandwidth of 10 MHz and carrier frequency of 1 GHz is used in an outdoor environment with a maximum delay spread of 15 microseconds

a- What is the cyclic prefix length?
b- What is the efficiency if 1024 subcarriers are used
c- If number of subcarriers are fixed, show how the efficiency changed as function of bandwidth
d- For the OFDM subcarriers to be orthogonal, the channel must be fixed for the duration of the OFDM symbol. What is the maximum number of OFDM subcarriers such that the OFDM symbol will not lose its orthogonality assuming that the maximum speed is 30 meters/sec

Reference no: EM13219152

Questions Cloud

Which policy will have greater impact on aggregate demand : Consider two policies-a tax cut that will last for only one year and a tax cut that is expected to be permanent. 1. Which policy will stimulate greater spending by consumers 2. Which policy will have the greater impact on aggregate demand

Human ecology or the chicago school : List the three theories and theorists for each that are labeled as "human ecology" or the "Chicago school." Describe each theory according to its theorist and MAP the layout of his theory.

Compare the euacs for leasing and buying the loader : A construction firm needs a new small loader. It can be leased from the dealer for 3 years for $5500 per year including all maintenance, OR it can be purchased for $20,000. The firm expects the loader to have a salvage value of $7,000 after 7 year..

Use matlab to compute the inverse laplace transform : Use MATLAB to compute the inverse Laplace transform of X(s)=(s^2+2s+1)/(s(s+1)(s^2+10s+50)) and determine the value of x(t) in the steady state. How would you be able to obtain this value without computing the inverse? Explain.

What is the cyclic prefix length : An OFDM system with a passband bandwidth of 10 MHz and carrier frequency of 1 GHz is used in an outdoor environment with a maximum delay spread of 15 microseconds.

How much machinery cost will increase if firm has projected : A firm has $500,000 per year to pay for replacing machinery over the next 10 years. What is the expected cost in Year 1 if the firm has projected that the machinery cost will increase by $15,000 per year The interest rate is 10% per year.

What is the equivalent annual worth of the costs : If the costs are expected to increase by $250 each year for the next 4 years (i .e., through year 5), what is the equivalent annual worth of the costs (years 1 through 5) at an interest rate of 18% per year? Please use P=A(P/A, i, n) or whatever y..

Describe the main functions of hrm : Discuss the main functions of HRM and what you feel is the most important issue facing HR Managers, employees, and Organizations today.

Calculate ratio of the area to volume for unit cube : calculate ratio of the area to volume for unit cube, a unit sphere inscribed inside the cube and as right cylinder inscribed inside the cube.

User Account

All Pages