Vila
@vila-4EJWAr Member
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Posted #Threads
What is enhanced interior gateway routing protocol (EIGRP)
Hi everybody, What is enhanced interior gateway routing protocol (EIGRP), and when is it used in network systems? Thank you.
1 reply -
Posted #Threads
Difference between VPN and VLAN?
Hi everybody, What is the difference between Virtual Private Network (VPN) and Virtual Local Area Network (VLAN) ? When does a company/organization uses VPN and when...
2 replies -
Posted #Threads
Rayleigh fading vs Rcian fading
Hiii all, Which one is stronger? Rayleigh fading or Rician fading? I mean which one has higher/stronger effect on the transmitted signal. Thank you..
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Posted #Threads
Barker vs Gold
Hiii, Which type of PN codes is better for Direct Sequence Spread Spectrum - Barker codes or Gold codes? Thanks..
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Posted #Threads
Types of PN Codes for DSSS
Hii all, Of the following which is the best types of PN codes for Direct Sequence Spread Spectrum - Barker, walsh, gold, kasami or MLS? Thank...
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Posted #Threads
BPSK vs QPSK
Hiii all, Why is that at bad channel condition, i.e (Channel with noises present), QPSK gives higher error rate compared to BPSK, whereas at good channel...
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Posted #Threads
Worst type of Jammer for DSSS System
Hii all, For a Direct Sequence Spread Spectrum system, which is the worst type of jammer signal of these 3 jammer signal :- Pulse Jammer, Single-Tone...
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Posted #Threads
Fading effect on signal
Hiiii, In a Direct Sequence Spread Spectrum system which one have stronger effect on the transmitted signal - rayleigh fading, rician fading or gaussian noise? Thank...
2 replies -
Posted #Threads
Higher bit error rate - BPSK or QPSK
Hii all, Which one has higher bit error rate, BPSK or QPSK? Lets say got two similar communication system, one uses BPSK, another uses QPSK, which...
1 reply -
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Posted #Threads
Best type of PN codes for DSSS
Hiiii all, For a direct sequence spread spectrum(DSSS) system, which type of PN codes gives the best performance - Walsh codes, Gold codes, Kasami codes or...
2 replies -
Replied #Threads
Noises in Wireless Channel
Hiii Durga, Thanks a lot for the explanation...Pulse Jammer and Single Tone jammers are type of jammers which will be sometimes present in wireless channel.
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Posted #Threads
Noises in Wireless Channel
Hiii all, In a wireless channel, can AWGN, Pulse Jammer, Single Tone Jammer, rayleigh fading and rician fading present all at once at the same channel?...
3 replies -
Replied #Threads
AWGN or gaussian noise
Hiii...thanks for the explanation. In a wireless channel, can AWGN, Pulse Jammer, Single Tone Jammer, rayleigh fading and rician fading present at once at the same...
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Posted #Threads
AWGN or gaussian noise
Hiii all, In a wireless channel, which of these 2 noise is more commonly present- AWGN or gaussian noise? I know its almost the same but...
4 replies -
Posted #Threads
Evaluating Performance of DSSS System
Hiii all, In a Direct Sequence Spread Spectrum system, besides changing the types of modulator used, and adding more noises and fading to the channel, what...
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Posted #Threads
White Gaussian Noise
Hiii, Is Gaussian Noise and White Gaussian Noise (WGN) the same thing? Or got any difference? Thank you..
1 reply -
Posted #Threads
BPSK modulator in DSSS system
Hiii all, In a direct sequence spread spectrum system why a BPSK modulator is used rather than QPSK or ASK? Why not use QPSK or ASK?...
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Replied #Threads
Matlab Codes for Noise and Jammers
Hiii...yes its from the net...if A is the input signal then how about xin and yin?
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Replied #Threads
Matlab Codes for Noise and Jammers
Hiii thanks a lot, Now i have a set of coding over here but i dont know how to determine which one is the information signal...
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Replied #Threads
Matlab Codes for Noise and Jammers
It gives the same error even if i use imread() instead of gifread() Yes whole code mate, how do i define the channel_output then?
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Replied #Threads
Matlab Codes for Noise and Jammers
These are another set of codes in which it should display Rayleigh function graph: %Initialization D=1 (D = interleaving depth) clear; Ts=1/1e3; % tx rate =...
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Replied #Threads
Matlab Codes for Noise and Jammers
This program should show the effect of Gaussian filter. %%%%%%%%%%%%% The main.m file %%%%%%%%%%%%%%% clear; % Parameters of the Gaussian filter: n1=10;sigma1=3;n2=10;sigma2=3;th...
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Replied #Threads
Matlab Codes for Noise and Jammers
Hiii, Mmm well i have some codes here, its shows errors. to whom i have to show them to get rectified? Do i just post the...
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Replied #Threads
Matlab Codes for Noise and Jammers
Hiii, Gaussian, AWGN or Broadband noise, either one can do.. Thank you.
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Replied #Threads
Matlab Codes for Noise and Jammers
Hii, I need matlab codes for noise generation and also codes for broadband noise jammer. Thank you...
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Posted #Threads
Matlab Codes for Noise and Jammers
Hiiii everybody, Anyone have matlab codes for noise or jammers? I tried googling but can't find. Please help me get one. Thank you...
21 replies -
Replied #Threads
Simulation for DSSS using matlab simulink
Hiiiiiii, I actually need to design DSSS Anti Jam communication system using matlab simulink. I also need to investigate the effect of changing parameters such as...
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Posted #Threads
Simulation for DSSS using matlab simulink
Hiii all, Do anyone have codes to generate Direct Sequence Spread Spectrum blocks? I mean the matlab codes to generate DSSS blocks. Or any links where...
3 replies -
Replied #Threads
Convert C codes to Matlab Codes
Hiiiii, Yes its done by using the MEX file. But i dont know how to use the MEX file inside C codes to make it run...
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Replied #Threads
Convert C codes to Matlab Codes
Hiiii everybody, How do i change or convert C codes to Matlab codes? Is there any software that can convert C codes to Matlab codes? I...
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Posted #Threads
Convert C codes to Matlab Codes
Hiiii everybody, How do i change or convert C codes to Matlab codes? Is there any software that can convert C codes to Matlab codes? I...
5 replies -
Posted #Threads
Effects of antenna length and ground
hiii everybody, Please explain the effects of antenna length and ground on the radiation resistance of a wire antenna. Thank you....
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Posted #Threads
Directivity and radiation resistance
Hiiiiiii all, How does the directivity and radiation resistance of a monopole antenna compare with that of a half-wave dipole? Thank you....
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Posted #Threads
Probe-Long-Term in Anti Jam Communication System
Hiiii everybody, Why do we need a Probe-Long-Term in Anti Jam Communication System? It connects the side information to the channel. Someone please explain. Thank you..
1 reply
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