Simulate and plot the bit-error-rate (BER) versus signal-to-noise-ratio (SNR) curve for QPSK and 16-QAM for the range of SNR from 0 dB to 20 dB (you could simulate every 2 dB, i. e., 0 dB, 2 dB, . . ., 20 dB). Compare the simulated curve with the theoretical curve.

So you need to have 2 figures (one for QPSK and one for 16-QAM) and each figure should contain 2 curves (one from simulation and one from the theoretic formula). Both curves should look like a waterfall.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k