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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)--二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)--瑞利衰落信道模拟
仿真示例:
Alamouti(1,12,20,24)
说明:
1.2根发射天线、1根接收天线
2.最高信噪比为12dB,即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)
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Size: 205151 |
Author: 老何 |
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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)--二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)--瑞利衰落信道模拟
仿真示例:
Alamouti(1,12,20,24)
说明:
1.2根发射天线、1根接收天线
2.最高信噪比为12dB,即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)-The main function Alamouti (Nr, max_snr, max_err_symbol, symbol_per_frame) function call QpskMapping (psudo_bit_sequence)- binary data to the QPSK signal transformation function call RayleighCH (Nr, Nt)- Rayleigh fading channel Simulation Example: Alamouti (1,12 , 20,24) Description: 1.2 transmission antennas, a receiving antenna 2. the highest SNR 12dB, that is, simulation range of 0dB to 12dB 3. in each signal to noise ratio conditions, the misuse of symbols that stop a few more than 20 The signal to noise ratio under the conditions of simulation 4. each frame of data for the 24 QPSK symbols integrated simulation function SimAlamouti (max_snr, max_err_symbol, symbol_per_frame) with a receiving antenna system SER performance and two receive antenna system SER performance comparison SimAlamouti (12,20,24)
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Size: 204800 |
Author: 老何 |
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Description: 非常好用,是一个在rayleighchan下OFDM检测的源代码,希望对大家有帮助-Very easy to use, is a next OFDM detection rayleighchan source code, in the hope that everyone has to help
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Size: 9216 |
Author: birdy |
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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)--二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)--瑞利衰落信道模拟
仿真示例:
Alamouti(1,12,20,24)
说明:
1.2根发射天线、1根接收天线
2.最高信噪比为12dB,即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)
参数说明:
1.max_err_symbol的取值直接影响了仿真的精度:取值越大,精度越高,误符号率曲线也更平滑;但需更长的仿真
时间
2.一般max_snr小于15dB,程序中snr为信号噪声功率比
3.本程序仿真时未考虑帧与帧之间,信道衰落系数的相关性,因此symbol_per_frame一定程度上表征了信道相关时
间的大小,即在symbol_per_frame个QPSK信号发送时间内,信道衰落系数是不变或缓变的,而在下一帧数据中,
信道衰落系数可以认为已变成另一值
4.本程序假定在接收端已通过信道估计获得信道衰落系数-ALAMOUTI performs Monte-Carlo simulation and estimates Bit Error Rate
(BER) of Alamouti Scheme [1] over Rayleigh channel. The scheme presumes
2 transmit (Tx) and arbitrary number of receive (Rx) elements.
If Rx=1 (one receive element) ALAMOUTI is transformed to the order 2
transmit diversity scheme with Maximum Ratio Combining (MRC). The
modulation format is MPSK with arbitrary order M which can be
controlled by user.
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Size: 203776 |
Author: chenyiren |
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Description: 协作通信系统中三种转发协议的信道参数主函数
-Cooperative communication system to forward the agreement of three main function of channel parameters
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Size: 1024 |
Author: |
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Description: function of the Rayleigh Fading Channel
Platform: |
Size: 1024 |
Author: gaurav dwivedi |
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Description: 单载波中继系统资源分配算法(第二章程序 文件夹)
RayleighCH.m:生成瑞利信道随机信道增益
distribution.m:用于生成随机分布的中继节点
RePAL.m:提出的功率再分配算法
pick.m:提出的中继选择算法,用于选出最优中继集
powalc.m:提出的给定中继集情况下的最优功率分配算法
bound_simu.m:用于仿真比较中断概率上界值与仿真值的紧致性(对应图2.4),以及不同功率分配算法的中断概率性能比较(对应图2.6)
pr_lmt_compare.m:用于仿真不同功率受限条件下提出的算法与最优算法的中断概率的性能比较(对应图2.5)
compare.m:用于仿真比较不同中继选择算法中断概率(对应图2.7)
OPACS.m:对应文献[16]中中继选择和功率分配算法
SCIRSS.m:对应文献[46]中中继选择和功率分配算法
NPAS.m:对应文献[45]中提出的功率分配算法(Resource allocation algorithm for single carrier relay system)
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Size: 3072 |
Author: 小迟aaaaa |
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