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viterbi
- 卷积码的译码方法主要有两种:代数译码和概率译码。代数译码是根据卷积码的本身编码结构进行译码,译码时不考虑信道的统计特性。概率译码在计算时要考虑信道的统计特性。典型的算法如:最大似然译码、Viterbi译码、-Convolutional Decoding by two major ways : Decoding algebra, probability and decoding. Decoding is based on algebraic Convolutional Codes itself c
BCJR_turbo
- Turbo码的BCJR 算法 将通过观察离散无记忆信道(DMC) 中的M arkov 信源的接收序列, 经过计算, 给出每符号(状态) 最小 差错概率的符号(状态) 序列。-Turbo Codes BCJR algorithm by observing without discrete memory accesses (DMC), M arkov source reception sequence, calculated, given every sign (state), the
阻塞率
- 呼叫阻塞率的计算和仿真:在时间轴上考虑。无论阻塞与否,下一呼叫到达时刻为当前呼叫到达时刻加上服从参数为1/λ的指数分布的呼叫间隔时间。一个呼叫到达时只需要判断呼叫的到达时刻和各个信道服务完成时刻的先后:如果前者比后者中任意一个大,说明至少有一个信道服务完成时刻比此呼叫到达时刻早,即此信道空闲,此时呼叫成功,应该先把此信道下一个服务完成时刻置为当前呼叫到达时刻,再加上服从参数为μ的指数分布的服务时间;反之,如果前者比后者中全部都小,说明所有信道在此呼叫到达后才会结束服务,即当前忙,此呼叫被阻塞掉了
XMODEM.C
- 这是XMODEM传输协议原代码,测试只能证明错误的存在,而不能表明程序中没有错误。 测试的两个作用是:确定程序中缺陷的存在;有助于判断该程序在实际上是否可用。 软件测试最困难的问题之一是知道何时停止测试(When to stop testing? ) 自己测试自己的程序是不可能的。 当一个软件被测出的缺陷数目增加时,更多的未被发现的缺陷存在的概率也随之增加。 -This XMODEM transfer protocol source code, the test can o
cm_bpske
- 这是一个BPSK仿真程序,可以在给定信道信噪比下计算BPSK系统的差错概率。-BPSK This is a simulation program that can be given Channel SNR calculation BPSK system error probability.
channelcoding
- 通过给定符号的概率对其进行相应的信道编码-Through the probability of a given symbol to its corresponding channel coding
probability_in_matlab_review
- AMATH 410 Review: Implementing basic probability concepts in MATLAB,The rand command and binary-valued random variables
Huffman_code
- 经典的Huffman编码,给定概率向量,输出相应Huffman编码-Classic Huffman encoding, given the probability vector, the output corresponding Huffman coding
coded
- awgn信道下,卷积编码与M-QAM调制相结合的系统分组错误概率与信噪比的函数关系的matlab仿真程序-awgn channel, convolutional coding and M-QAM modulation system, the combination of packet error probability and SNR is a function of the matlab simulation program
zuselvlilun
- 移动通信中话务量排队论中的阻塞率的理论值计算,运用C语言编程-Mobile telephone traffic queuing in the blocking probability of the theoretical value, the use of C language programming. . . . . .
xinxinlun
- 自适应算术编码,可以实现根据当前输入的码元自动调节概率,大大提高通信传输效率。-Adaptive arithmetic coding, can be achieved according to the current input symbol automatically adjust the probability, greatly improve the communication transmission efficiency.
turbo_MAP_Prob
- 用概率计算实现turbo译码源程序,再普通turbo译码上改变译码速度和收敛速度-Turbo decoding with source probability to achieve, and then change the normal turbo decoding speed and decoding speed of convergence
8psk
- (1) 分析QPSK调制、解调原理,并画出其系统框图; (2) 产生等概率且相互独立的二进制序列,作为待传输的信号,并画出其波形; (3) 进行8PSK调制,分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形; (4) 产生均值为0,方差为1的加性高斯随机噪声,画出其时域波形及频谱; (5) 将加性高斯随机噪声作为传输信道的干扰,画出接收端信号的时域图; (6) 进行8PSK解调,输出解码序列,画出解调后信号波形; (7) 计算系统信噪比、传输误码率。-(1)
compare_RS-PA_twoway
- 双向协作通信下,基于最小化中断概率,功率分配和中继选择技术研究对比图。-Two-way cooperative communication, based on minimizing the outage probability, power allocation and relay selection technology comparison chart.
renzhiweuxiandianzip
- 关于认知无线电频谱检测中能量检测的程序,并绘制虚警概率和检测概率之间的关系。-On energy detection in cognitive radio spectrum detection method, the relationship between the probability of false alarm and detection probability.
alpha-matlab
- Alpha稳定分布的分布函数计算 产生alpha稳定稳定分布的概率密度函数-Alpha-stable distribution produced alpha stable distribution function of the probability density function of stable distribution
EnergydetectionZhengCe
- 基于能量检测法的matlab程序,很简单,讨论了在不同虚警概率下检测概率的变化和信噪比的要求,自己编的-Based on energy detection method matlab program, very simple, discusses the different detection probability of false alarm probability changes and SNR requirements, own ...
outagewe---Copy
- Cooperative Communication in 3 relay path is implemented.The outage probability vs snr is plotted
increoutagefl
- The outage probability in cooperative communication using incremental relaying is plotted.this includes 3 relay path
Outage-probability-Power-Point
- Powerpoint presentation for outage probability in coded cooperative communication
