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一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道：不考虑通信信道信号时，由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
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完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.,Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustnes
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MATLAB program for OFDM generation and reception
This is a simple MCM communications system. The code is pretty self-explanatory. Here I have not used the cyclic prefix.
Transmitter End:
1. Generate random serial data with M symbols (RAND
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lte中下行信号经过加扰、调制、层映射、预编码以及资源映射中的关于调制的QPSK的MATLAB代码-lte in the downlink signal through the scrambling, modulation, layer mapping, coding and mapping resources on the MATLAB code for QPSK modulation
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此代码为π_4DQPSK解调源程序，用MATLAB实现,使用差分方式。-This demodulation π_4DQPSK source code using MATLAB to achieve, the use of differential mode.
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this code for qpsk with awgn
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This file is the matlab source code for offset QPSK (OQPSK) modulation and demodulation in wireless and mobile communications
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matlab code for qpsk
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This matlab code gives the BER of MRC, EGC and SC for QPSK
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代码包含的主要内容是AWGN信道上BPSK,QPSK,16QAM的调制解调，以及误码率计算过程，其中还有OFDM调制在信道上传输的仿真内容-Code contains the main contents of AWGN channel BPSK, QPSK, 16QAM modulation and demodulation, and bit error rate calculation process, in which there are OFDM modulation in the cha
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the code for four bit qpsk with 90 degrees phase shift with constellation and without constellation of noise is given
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Matlab code for QPSK and QAM under rayleigh envrionment
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数字通信系统仿真，基于MATLAB软件的QPSK仿真源程序代码。-Digital communication system simulation, simulation based on MATLAB software source code for QPSK.
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OFDM加窗的matlab源码，主要用于降低峰均功率比-OFDM with windows matlab source, mainly used to reduce the PAPR
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数字调制QPSK和MSK的性能对比，通过计算和比较频谱利用率、功率谱的滚降、误码性能等-QPSK and MSK digital modulation performance comparison, by calculating and comparing spectral efficiency, power spectrum roll-off, error performance, etc.
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matlab code for qpsk
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用于QPSK调制与解调的程序，直接就可以使用。(matlab code for the modulation and demodulation of QPSK)
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Matlab code for BPSK and QPSK modulation schemes and AWGN
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matlab code for qpsk matlab code
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相干光通信接收端补偿MATLAB代码以及Optisystem仿真系统文件(Compensation MATLAB code for receiver terminal of coherent optical communication)
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