Home » Source Code » OFDM Modulation and Demodulation

OFDM Modulation and Demodulation

huyrro
2014-10-08 02:36:41
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Category Category:
vhdlvhdl VHDLVHDL

Description

Cyclic prefix insertion is commonly used in orthogonal frequency division multiplexing (OFDM) systems as a way 

to mitigate the effects of intersymbol-interference (ISI). It copies the end section of an inverse fast Fourier 

transform (IFFT) packet to the beginning of an OFDM symbol. Usually the length of the cyclic prefix is longer 

than the length of the dispersive channel to completely remove ISI. OFDM modulation therefore mostly revolves 

around cyclic prefix: OFDM modulation includes IFFT operation and cyclic prefix insertion; OFDM demodulation 

includes cyclic prefix removal and FFT operation.


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File list

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Name Size Date
ofdm_demod_msim.tcl4.44 kB19-10-07 13:57
ofdm_demod_wave.do10.01 kB15-10-07 13:37
check_rtl_rx.m2.10 kB19-10-07 14:07
imag_input.txt92.77 kB15-08-07 10:25
real_input.txt92.77 kB15-08-07 10:25
ram_counter.vhd7.51 kB19-10-07 09:13
ram_read.vhd7.43 kB19-10-07 09:17
ready_latency_converter.vhd10.01 kB19-10-07 09:42
rx_top.vhd13.01 kB19-10-07 13:58
cp_mem.vhd10.13 kB12-10-07 14:19
latency_fifo.cmp1.08 kB17-09-07 08:26
latency_fifo.vhd7.18 kB17-09-07 08:27
latency_fifo_gen.vhd7.18 kB17-09-07 08:23
latency_fifo_inst.vhd227.00 B17-09-07 08:26
ofdm_demod.qpf913.00 B19-10-07 15:09
ofdm_demod.sdc3.45 kB05-11-07 10:22
ofdm_demod.qsf2.85 kB30-11-07 17:34
rx_tb.vhd16.00 kB19-10-07 09:57
ofdm_integration_msim.tcl5.95 kB19-10-07 14:26
ofdm_integration_wave.do21.17 kB05-11-07 14:26
check_rtl_top.m4.13 kB19-10-07 14:41
imag_input.txt607.98 kB21-09-07 09:01
real_input.txt607.98 kB21-09-07 09:01
ofdm_int.vhd23.60 kB19-10-07 14:17
ofdm_integration.qpf919.00 B24-10-07 14:26
ofdm_integration.qsf7.44 kB05-11-07 10:36
ofdm_integration.sdc3.45 kB05-11-07 10:22
setup.tcl4.54 kB30-11-07 17:19
imag_input.txt4.16 kB18-09-07 08:51
ofdm_int_tb.vhd16.19 kB19-10-07 14:30
real_input.txt4.16 kB18-09-07 08:51
ofdm_mod_msim.tcl5.52 kB19-10-07 10:28
ofdm_mod_wave.do9.09 kB12-10-07 12:55
check_rtl_tx.m3.73 kB19-10-07 10:35
tx_top.vhd13.66 kB12-10-07 09:25
add_cyclic_prefix.vhd25.88 kB30-11-07 16:58
cp_mem.vhd10.13 kB06-09-07 12:44
fft.bsf4.95 kB16-10-07 15:53
fft.cmp2.38 kB16-10-07 15:53
fft.html5.79 kB16-10-07 15:54
fft.qip4.16 kB16-10-07 15:54
fft.vhd10.18 kB16-10-07 15:54
fft.vho2.52 MB16-10-07 15:54
fft.xml3.48 kB16-10-07 15:52
fft_bit_reverse_top.vhd6.29 kB16-10-07 15:53
fft_fft.fsi1.87 kB16-10-07 15:53
fft_model.m3.11 kB16-10-07 15:53
fft_nativelink.tcl2.97 kB16-10-07 15:53
fft_opt_twi1.hex8.03 kB16-10-07 15:53
fft_opt_twi2.hex2.03 kB16-10-07 15:53
fft_opt_twi3.hex540.00 B16-10-07 15:53
fft_opt_twi4.hex156.00 B16-10-07 15:53
fft_opt_twi5.hex60.00 B16-10-07 15:53
fft_opt_twr1.hex8.03 kB16-10-07 15:53
fft_opt_twr2.hex2.03 kB16-10-07 15:53
fft_opt_twr3.hex540.00 B16-10-07 15:53
fft_opt_twr4.hex156.00 B16-10-07 15:53
fft_opt_twr5.hex60.00 B16-10-07 15:53
fft_tb.m1.88 kB16-10-07 15:53
fft_tb.v10.18 kB16-10-07 15:53
fft_tb.vhd12.95 kB16-10-07 15:53
imag_input.txt394.04 kB16-10-07 15:53
real_input.txt394.06 kB16-10-07 15:53
velocity.log6.10 kB16-10-07 15:53
fifobuff.vhd6.41 kB13-09-07 14:48
ofdm_mod.qpf911.00 B16-10-07 13:43
ofdm_mod.qsf7.65 kB26-10-07 10:40
ofdm_mod.sdc3.42 kB26-10-07 10:38
setup.tcl4.52 kB29-11-07 18:44
tx_top_tb.vhd14.72 kB19-10-07 09:59
<cp_mem>0.00 B30-08-09 20:54
<latency_fifo>0.00 B30-08-09 20:54
<cp_mem>0.00 B30-08-09 20:54
<fft72>0.00 B30-08-09 20:54
<fifobuffer>0.00 B30-08-09 20:54
<scripts>0.00 B30-08-09 20:54
<sim>0.00 B30-08-09 20:54
<source>0.00 B30-08-09 20:54
<synthesis>0.00 B30-08-09 20:54
<tb>0.00 B30-08-09 20:54
<scripts>0.00 B30-08-09 20:54
<sim>0.00 B30-08-09 20:54
<source>0.00 B30-08-09 20:54
<synthesis>0.00 B30-08-09 20:54
<tb>0.00 B30-08-09 20:54
<scripts>0.00 B30-08-09 20:54
<sim>0.00 B30-08-09 20:54
<source>0.00 B30-08-09 20:54
<synthesis>0.00 B30-08-09 20:54
<tb>0.00 B30-08-09 20:54
<ofdm_demodulation>0.00 B30-08-09 20:54
<ofdm_integration>0.00 B30-08-09 20:54
<ofdm_modulation>0.00 B30-08-09 20:54
<ofdm_modulation_v72>0.00 B30-08-09 20:54
<ofdm_modulation_v72>0.00 B30-08-09 20:54
...
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Comments

(Add your comment, get 0.1 Point)
Minimum:15 words, Maximum:160 words
zhangshao
2015-04-14

一个不错的程序,对自己很有帮助

yestoday
2016-04-12

一个不错的程序,对自己很有帮助

ablabedoui
2017-05-10

whats about filtered ofdm

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OFDM Modulation and Demodulation (641.78 kB)

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