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walsh code for cdma communication in 3G
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CDMA中正交walsh码，用来扩频的matlab 仿真程序。-CDMA in the orthogonal walsh code for spreading the matlab simulation program.
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simulation for walsh code (CDMA)
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直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user in
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These are orthogonal complimentary code version of walsh codes which are or to be used in cdma systems.-These are orthogonal complimentary code version of walsh codes which are or to be used in cdma systems.
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CDMA中PN、Walsh码应用及调制解调的仿真实现-CDMA in the PN, Walsh code modulation and demodulation application and the Simulation
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A simple program for simulation of CDMA system with Walsh-Hadamard Code.
Result of this program is plot of BER vs SNR.
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Walsh-Hadamard codes are mutually orthognal codes,
thus when used in synchronous CDMA, the interference between users is zero.
This programm generates Walsh-Hadamard codes and also checks the orthogonality.
You can change the code length by
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MC-CDMA Walsh code for the communication systems.
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it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in th
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A mc-cdma system with transmitter and reciever for 4 users using walsh hadamard code for spreading.Performance of Ber is also shown.
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Aim: do walsh coding with hamming distance.To compare WALSH decoding for synchronous CDMA with decoding using hamming distance.
a) System should be supplied with correct/ corrupted version (one/ two bit) of transmitted walsh code(s)
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CDMA and OFDMA are the multiple access techniques for the next generation wireless communication systems. In 3G systems CDMA is used and in 4G OFDMA technique is used. Recently in 3G systems Wideband Code Division Multiple Access (WCDMA) is used beca
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