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ds_cdma

于 2011-12-06 发布文件大小:21KB

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下载积分: 1 下载次数: 12

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代码说明：

wcdma 编码扩频调制过程。。。。。。。。。。。。。。。。。。(wcdma coded spread-spectrum modulation process )

文件列表：

ds_cdma
.......\ds_cdma
.......\.......\ds_cdma
.......\.......\.......\autocorr.m,620,2009-11-23
.......\.......\.......\BER.dat,691,2011-12-02
.......\.......\.......\comb2.m,738,2009-11-23
.......\.......\.......\compconv2.m,595,2009-11-23
.......\.......\.......\compoversamp2.m,686,2009-11-23
.......\.......\.......\crosscorr.m,687,2009-11-23
.......\.......\.......\delay.m,782,2009-11-23
.......\.......\.......\despread.m,992,2009-11-23
.......\.......\.......\fade.m,1917,2009-11-23
.......\.......\.......\goldseq.m,625,2009-11-23
.......\.......\.......\hrollfcoef.m,1483,2009-11-23
.......\.......\.......\mainfunc.asv,4243,2011-12-05
.......\.......\.......\mainfunc.m,4243,2009-11-23
.......\.......\.......\mseq.m,1113,2009-11-23
.......\.......\.......\qpskdemod.m,700,2009-11-23
.......\.......\.......\qpskmod.m,931,2009-11-23
.......\.......\.......\sefade.m,1514,2009-11-23
.......\.......\.......\shift.m,1242,2009-11-23
.......\.......\.......\spread.m,985,2009-11-23
.......\.......\WCDMA.mdl,53416,2009-11-23

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PUSCH_mapping
该程序为LTE中3GPP协议的PUSCH信道的物理资源映射程序，可进行物理层链路的资源映射部分(The program is a physical resource mapping program for the PUSCH channel of the 3GPP protocol in LTE, and the resource mapping part of the physical layer link)

2017-09-26 21:29:05下载

积分：1
多径干扰下ofdm仿真
多径参数干扰下的ofdm系统的matlab仿真代码，可供学习(Matlab simulation code of OFDM system under multipath parameter interference can be learned)

2019-04-10 09:41:31下载

积分：1
2
说明：在MIMO系统里 2发2收天线，采用Alamouti发案编码的无线传输系统在瑞瑞丽平衰落信道下的误码率性能仿真，系统采用调制方式为QPSK。(MIMO 2 send and 2 receive antenna ,)

2018-05-09 22:27:04下载

积分：1
rs_encoder
适应多个模式的rs编码，Verilog，选择对应的多项式(RS coding adapted to multiple modes.)

2020-06-16 04:40:02下载

积分：1
DirectedDiffusion
this describe the rouring protocol direct diffusion for wireless sensor network

2010-02-09 14:38:45下载

积分：1
ASK FSK
实现2ASK、2FSK调制及两者的包络检波解调(Implementation of 2ASK, 2FSK modulation and envelope demodulation of both)

2018-06-04 16:39:21下载

积分：1
MassiveMIMO_Capacity
大规模MIMO信道容量分析，主要分析了BS和MS天线数不断增大时，对信道容量的影响。(The analysis to Massive MIMO channel capacity as the antennas of BS and MS grow up. )

2013-10-16 17:25:32下载

积分：1
05441004
Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

2011-11-05 01:46:42下载

积分：1
jian
说明：整个仿真系统是从发射端、瑞利信道、接收端大致的过程(The entire simulation system is a rough process from the transmitter, the Rayleigh channel, and the receiver)

2020-08-25 16:21:59下载

积分：1
ECE 4634
Zero forcing - with interference cancellation

2019-04-27 21:44:17下载

积分：1

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