登录
首页 » matlab » 123

123

于 2011-09-05 发布 文件大小:201KB
0 304
下载积分: 1 下载次数: 38

代码说明:

  为了提高MIMO-OFDM系统的数据传输率和频谱利用率,提出一种新的自适应算法。该算法在保证信道质量所需误码率和总发射功率的前提下,按照各个子载波衰落程度动态地分配比特和功率,使系统的总数据传输速率最大。理论分析得出,该算法降低了系统运算复杂度,能很大地改善系统的整体性能。(In order to improve data transmission rates and spectrum efficiency of MIMO-OFDM systems,this paper proposes a new adaptive algorithm. While the channel transmission quality to meet the requirements of a certain target BER(bit error rate) and total emissive power,according to each sub-carrier decline degree to adjust each sub-carrier modulation method freely,try to minimize the total data rate of system. Theory analysis shows the algorithm can reduce system complexity and improve overall performance of the ...)

文件列表:

基于MIMO_OFDM系统的自适应算法研究.pdf,260960,2011-09-05

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • BPSK调制仿真
    bpsk调制仿真,可直接用 1、数字调制方法 数字调制就是把数字基带信号的频谱搬移到高频处,形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控(ASK)、频移键控(FSK)、绝对相移键控(PSK)、相对(差分)相移键控(DPSK)。在接收端可以采用想干解调或非相干解调还原数字基带信号。 数字信号的传输方式分为基带传输和带通传输。然而,实际中的大多数信道(如)无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输,必须用数字基带信号对载波进行调制,以使信号与信道的特性相匹配。(1, digital modulation method Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation. Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
    2019-05-28 10:46:01下载
    积分:1
  • DPCM_Testing
    这是一个将语音信号通过DPCM编码传输的仿真测试程序,内有详细注释,希望对大家有用。(This is a voice signal transmission through the DPCM code simulation testing procedures, with detailed notes, We hope that the right useful.)
    2007-03-14 22:14:01下载
    积分:1
  • 31175278moulationclassification
    主要是实现调制识别,区分几种常用的数字调制信号。含有两个文件夹 其一为特征参数的仿真;其二为正确识别率的仿真。文件夹key feature simulink中: 运行程序会得到各特征参数之间区分图 从图中可看到特征参数的有效性,见图。 文件夹classification rate simulink中:运行main.m文件 可以得到正确识别率 见图。(It is mainly to realize modulation recognition and distinguish several commonly used digital modulation signals. The simulation of two folders is one of the characteristic parameters, and the second is the simulation of the correct recognition rate. In the folder key feature Simulink: The running program will get the validity of the feature parameters that can be seen from the diagram, as shown in the diagram. Folder classification rate Simulink: running the main.m file can get the correct recognition rate.)
    2018-01-21 11:02:43下载
    积分:1
  • 相控阵雷达天线模型及仿真
    相控阵雷达天线模型及仿真论文,非常好用,推荐(Phased array radar antenna model and simulation paper, very useful, recommended)
    2019-04-21 15:46:36下载
    积分:1
  • MVDRcode
    传统的MVDR算法上加约束能够产生宽零陷,从而抑制动态干扰(In traditional MVDR algorithm, adding constraints can produce wide nulls, thus restraining dynamic interference)
    2017-09-20 10:00:35下载
    积分:1
  • wrnvf
    验证可用,MinkowskiMethod算法 ,计算一维光子晶体的透射特性和反射特性。( Verification is available, MinkowskiMethod algorithm, Calculated transmission characteristics and reflection characteristics of the one-dimensional photonic crystals.)
    2017-04-17 21:59:08下载
    积分:1
  • 均衡
    说明:  lms以及rls对信道进行均衡,实现误差减小,(Channel equalization)
    2020-05-23 15:56:24下载
    积分:1
  • impulsive-noise-simulation-PLC
    电力线信道噪声模型matlab仿真,在输入端把脉冲噪声模型放入电力线OFDM通信系统,输出端用特定算法解码。(The algorithm estimates the impulsive noise in powerline communication, and subtract out an estimate of the impulsive noise in the current OFDM frame.)
    2013-01-26 17:10:49下载
    积分:1
  • CounterPanel
    A panel with test run counters.
    2014-02-18 09:44:45下载
    积分:1
  • Server_To_Clinet
    MFC写的2个程序,通过socket通信,上下位机的。上位机发送一个名字给下位机,下位机通过查询数据库取得电话号码传回上位机,带详细文档。(MFC write two procedures, through the socket communication, next-bit machine. PC to send a name to the next crew, the next crew by querying the database to obtain the phone numbers return PC)
    2013-06-15 22:53:40下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载