09-13: The figure below shows comparison of the noise performance of different PSK and FSK schemes using closed form formulas. Reproduce the same results using simulations for the following modulation formats. i. Coherent QPSK ii. DPSK Plot both the theoretical and simulation results. 1o-1 1o-2 10-3 2.5
Q3) In coherent schemes, a small pilot is added for synchronization. Because the pilot does not carry information, it causes degradation in Pb. Consider Coherent PSK. Assume that the following two pulses of duration Tb is used: where is the pilot. Find the error probability when the channel is additive white Gaussian noise with power spectral density of N/2. Hint: Use the general expression for the error rate in binary signaling. p(t) = A (1 – B2)cos(wet) + AB sin(wet)
In coherent schemes, a small pilot is added for synchronization. Because the pilot does not carry information, it causes degradation in P. Consider a coherent PSK that uses the following two pulses of duration Tg: p(t) = AV1 - m2 cos wet +A m sin wet 4(t) = -AVI - m² cos wet + Am sin wet Ep + Eq – 2Epg Problems 60 where Am sin wut is the pilot. Show that when the channel noise is white Gaussian,...
coherent risk measure
Prove that expected shortfall is a coherent risk measure.
Prove that expected shortfall is a coherent risk measure
For the bit pattern “01011100110”, please design and plot (a) ASK, (b) FSK (c) PSK.
a)Phase shift keying (PSK) normally used in satellite communication system Illustrate the Transmitter and Receiver diagram that belong to this baseband modulation and discuss in details the respected process. [25 marks b) By giving an appropriate example for each, show how the Hamming code and Bose Chadhuri Hocquenghem (BCH) code have been applied in digital communication environment [25 marks]
a)Phase shift keying (PSK) normally used in satellite communication system Illustrate the Transmitter and Receiver diagram that belong to this baseband...
Which initial authentication mode is used for message-by-message encryption, authentication, and message integrity? 802.1X PSK both A and B neither A nor B
5. Coherent States (Answer only question 5 for part a, b, and
c)
A coherent state is an Eigenstate of annihilation / lowering
operator
c) Baker- Campbell- Hausdorff Formula [Hint: Define the functions fa-eaA+8), ģ(A)-eä eABe-12 č. Note that these functions are equal at -0, and show that they satisfy the same differential equation: df/di (A+ B)f and dg/da (A+B)g Therefore, the functions are themselves equal for all λ.] A useful application of BCH formula is given in problem 5...
Where equation 11.29 is
11.5.3 Coherent states 2. Let us study states ()such that the expectation values of a and H have properties identical to the classical properties. First, İr(a)(i)-(p(1)ļa1φ(1) , show that so that(a)(t) must satisfy the same differential equation (1 l.29) as「(t). We define the complex number Zo as and so we then have the following solution of the differential equation for (a) (t): (a)(,) = Oe-ian . dz dt (11.29)
11.5.3 Coherent states
2. Let us study...
Draw basic ASK, PSK, FSK signal for the following bit-stream: 0 1 0 1 1 0 1 0 0 1 Thanks!