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An ad hoc 2 Mbps WLAN using aloha protocol connects two stationswith a distance of 100 m from one another-each, on the average ,generating 10 packets per second. If one of the terminals transmitsa 100- bit packet, what is the probability of successful transmission of this packet? Assume that the propagation velocityis 300,000 Km/sec and the packets are produced according to thePoisson distribution?
According to the tariff the owner agreedwith the utility company, the income generated is $0.16 per kWh atany time of the day. This figure is expected to rise annualy by20%. Ignore interst rates, any fluctuations in dollar etc.
A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994. The MTTR (mean time to repair) for the unit is estimated to be 24 hours.
∂Δnp/∂t = DN∂2Δnp/∂x^2 -Δnp/τn + GL is known as the minority carrier diffusion equation for electrons. (a) Why is it called a diffusion equation (b) Why is it referred to as a minority carrier equation
An aluminum casting that has a mass of 10 kg sits on a steel surface. How much force will be necessary to get it to start sliding. The static coefficient of friction (mu) for aluminum on steel is 0.61.
An initially charged capacitance discharges through a resistance. At one time constant, what percentage of the initial voltage remains What percentage of the initial soted energy remains
A digital communication system employs differentially encoded BPSK modulation scheme with non-coherent (differential) reception. If the Eb/N0 is 8 dB, what is the probability of bit error for the system
The signal m(t)=6sin(2*pi*t) volts is transmitted using 4-bit binary PCM system. The quantizer is of the midriser type, with a step size of 1v
Suppose a car is traveling at +23.2 m/s, and the driver sees a traffic light turn red. After 0.563 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m/s2. What is the stopping distance of the car
A 12-v automobile battery has an output capacity of 100 ampere-hours(Ah) when connected to a head lamp that absorbs 200watts of power. the battery voltage is constant. a) What is the current supplied by the battery
A total of 3.00 106 electrons are placed on an initially uncharged wire of length 1.44 m. (a) What is the magnitude of the electric field a perpendicular distance of 0.412 m away from the midpoint of the wire
A 150-MVA 15/200-kV single-phase power transformer has a 0.018ohm resistance and a 0.075ohm reactance. The magnetizing impedance is j80 per unit. a.) Find the equivalent circuit referred to the low-voltage side of this transformer.
As indicated from the diagram, when LEFT = 1 the lights flash in a pattern LA on; LA and LB on; LA, LB, and LC on;all off; and then the sequence repeats. When RIGHT = 1, the lightsequence is similar. If a switch fromt LEFT to RIGHT (or viceversa) ..
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