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HW 6-1
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HW6-1
1) Use C/Matlab programming to calculate the CRC of bit stream of
0x58AF where a divisor x 4 + x 3 + x 2 + 1 (11101) is adopt.
2) Can the CRC detect all error patterns? List an ex
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HW 5-1
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HW5-1
For a BPSK modulation, set carrier as Acos(c t ) and baseband as
B [cos(o t ) 31 cos(3o t )],
1) derive the mathematical equations of modulated and demodulated
signals and draw re
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HW4-3
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HW4-3
1) Based on (4.9), prove the free space path loss (FSPL) equation.
PL = 32.45(dB ) + 20log (f ) + 20log (d ) gtx grx
where f is the frequency in MHz and d in km. gtx and grx are th
Homeworks-2
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HW2-1
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HW2-1
1) A processing with a port address of 753 running at Computer A
sent a packet to another processing with a port address of 680
running at Computer B through LAN1, rout
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HW4-1 (1)
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HW4-1
Use Matlab to plot the losses and resistances of the 4 coaxial cables
listed in slide #12. The losses are presented in dB/m versus the
frequency from 100MHz to 10GH.
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HW4-
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HW3-1
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HW3-1
A channel has a bandwidth of B = 10MHz.
1) If there is no noise and a 64QAM where M = 64 is adopted, what
is the Nyquist capacity? What is the bandwidth efficiency then?
2) If SNR
Introduction
The main objective of Project 2 was to simulate a DCF contention-based multiple access scheme with
CSMA/CA protocol. The project was completed on my own, and I revised the provided Matlab
Introduction
The main objective of Project 3 was to simulate a wireless vehicle network. A message was initially
transferred from the source vehicle, across a network of surrounding vehicles, and fina
Homeworks-1
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HW1-1
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HW1-1
1) Derive/Explain the three equations of (1-1) and tabulate all the
parameters with physical meanings and units.
2) For a network with R = 100kbs/s and L = 1000bits, us
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HW 12-1
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HW12-1
In WiFi systems, nodes adopt CSMA MAC protocol to access to the
shared media through contention. At the beginning, CWmin = 31
meaning that there are 32 slots available for users