This a very simple baseband simulator for SC-FDMA system. This simulator is part of the upcoming book “Single Carrier FDMA: A New Air Interface for Long Term Evolution” (Wiley, Nov. 2008) which I co-authored with professor David J. Goodman at Polytechnic University. The purpose of this simulator is to give some concrete idea of how SC-FDMA system works. It does lack many realistic and sophisticated features such as channel coding, time-varying fading channel model, soft decision decoding, etc. Regardless, I am hoping that it will help you understand SC-FDMA which is a fairly new development in 3GPP LTE.
标签： simulator This baseband upcoming
上传时间： 2016-08-26
上传用户：小草123
WLAN仿真－系统参数配置 系统参数主要分为2类： 一类是可以配置的，可以根据使用者的需求改变的参数 1）你打算让这个仿真跑多少个OFDM符号？ 2）你打算采用什么样的调制方式？ 3）你打算让你的系统跑在什么样的环境下，AWGN？Rayleigh fading? 4）你的接收端采用什么样的配置，比如，是否采用理想均衡，线性插值均衡，理想同步，频偏纠正等等？ 5）你的信道采样频率是多少？你的载波频率是多少？ 一类是固定不变的，发送端按照协议规定设置的一些参数 1）子载波个数，包括数据子载波，导频子载波。 2）保护间隔，pilot和preamble的数值。 举例：比如将这些参数汇总在一个m文件，global_parameter.m
上传时间： 2016-11-09
上传用户：aeiouetla
Error probability performance for W-CDMA systems with multiple transmit and receive antennas in correlated Nakagami fading channels
标签： probability performance antennas multiple
上传时间： 2014-01-08
上传用户：WMC_geophy
Single/Multipath Channel Model Verificaiton EbNo vs. BER/SER under AWGN BPSK vs. QPSK Theory vs. Simulation AWGN vs. Flat fading Channel Most files are written by myself, enjoy it. Figures are attached.
标签： Verificaiton Multipath vs Channel
上传时间： 2013-11-26
上传用户：hwl453472107
We simulate uncoded BER of BPSK modulated data as a function of SNR -in an AWGN channel -in a Rayleigh fading channel -in an AWGN channel when direct sequence spreading is used and compare results to the theoretical ones. We assume coherent receiver and perfect synchronization.
标签： modulated simulate function channel
上传时间： 2014-01-11
上传用户：1109003457
source code for awgn,BPSK modulation and demodulation,channel simulation,convolution encoder,data generator,encoder and fading channel
标签： demodulation convolution modulation simulation
上传时间： 2017-04-14
上传用户：13517191407
Performance analysis of wireless networking with interleaving on the receiver side over Rayleigh fading channels.
标签： interleaving Performance networking analysis
上传时间： 2017-05-27
上传用户：lanhuaying
In 揚erformance of multi-carrier DS CDMA Systems?we apply a multi-carrier signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter.
标签： multi-carrier erformance signaling technique
上传时间： 2017-07-31
上传用户：宋桃子
用于通信信道服从莱斯分布的仿真。注意：适用于产生0101码，并且用星座图判别误码率的仿真。
标签： fician fading;通信
上传时间： 2015-05-18
上传用户：wen123
Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present a metal–organic framework (MOF)-based battery separator to mitigate the shuttling problem. We show that the MOF-based separator acts as an ionic sieve in lithium–sulfur batteries, which selectively sieves Li+ ions while e ciently suppressing undesired polysulfides migrating to the anode side. When a sulfur-containing mesoporous carbon material (approximately 70 wt% sulfur content) is used as a cathode composite without elaborate synthesis or surface modification, a lithium–sulfur battery with a MOF-based separator exhibits a low capacity decay rate (0.019% per cycle over 1,500 cycles). Moreover, there is almost no capacity fading after the initial 100 cycles. Our approach demonstrates the potential for MOF-based materials as separators for energy-storage applications.
上传时间： 2017-11-23
上传用户：653357637
