采用eigen value來模擬各種衰落信道的源碼程序,可以仿真瑞利衰落和AWGN疊加等等的情況。有詳細注釋。
上傳時間: 2016-01-24
上傳用戶:520
OFDM Signal generation and decoding using 16-QAM .64QAM as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. Just run the Model and with different SNRs in the AWGN Channel Block observe the performance of the OFDM.
標簽: generation modulation QAM technique
上傳時間: 2014-01-10
上傳用戶:lps11188
This program simulates the bit-error-rate (BER) performance of OSTBC with L=4 antennas over the frequency flat Rayleigh block fading channel The code is developed for real orthogonal design, code rate 1/2 modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.
標簽: bit-error-rate performance simulates the
上傳時間: 2014-01-13
上傳用戶:whenfly
構建了正交頻分復用(OFDM)系統(tǒng)的仿真模型,給出了具體信道的參數(shù)。在不同信道傳輸環(huán)境下,對不同調制方式和 不同移動速度下的OFDM系統(tǒng)性能進行了分析比較,在仿真結果的基礎上給出了OFDM系統(tǒng)抗多普勒頻移的參考方案,采 用的信道模型基于ITU - RM. 1225 ChannelB瑞利(Rayleigh)衰落信道。最后,在基于COST 207的信道模型下,對四種典型 環(huán)境的OFDM系統(tǒng)進行了仿真研究,并對其結果作了討論分析。結果表明:在多徑衰落信道下,OFDM系統(tǒng)可以有效克服多 徑衰落和多普勒頻移,能夠應用于未來的通信系統(tǒng)。 關鍵詞:正交頻分復用 多徑衰落信道 多普勒效應 循環(huán)前綴
上傳時間: 2013-12-27
上傳用戶:梧桐
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder).
標簽: simulation baseband channel packet
上傳時間: 2014-12-20
上傳用戶:ukuk
主要是針對現(xiàn)在的合作通信中,引入ARQ機制,仿真在AWGN信道下的誤包率
標簽: 通信
上傳時間: 2016-04-24
上傳用戶:lo25643
There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
標簽: bpsk_spread jakesmodel simulation folder
上傳時間: 2016-05-19
上傳用戶:ynsnjs
一個在matlab環(huán)境下的DAB仿真程序源碼。內含ofdm收發(fā),AWGN等
上傳時間: 2016-05-25
上傳用戶:jjj0202
本程序是對多徑無線衰落信道的仿真源程序,主要是針對Rayleigh信道的仿真
上傳時間: 2014-10-29
上傳用戶:xfbs821
This a matlab code that simulate the monte-carlo simulation of using 16-QAM with OFDM system under AWGN case.
標簽: monte-carlo simulation simulate matlab
上傳時間: 2013-12-14
上傳用戶:yangbo69