3G里使用的spreading技术演示仿真。用于教学演示的Matlab模型。A demo of spreading code generation and modulation used in 3G.
标签： generation modulation spreading spreading
上传时间： 2015-10-15
上传用户：luopoguixiong
This model simulates a CDMA2000 1xRTT Forward link (between Base Station and Mobile Station). In particular, it simulates the Radio Configuration 3 of a Forward Fundamental channel. The block CDMA2k: Initial settings allows you to set different parameters such as data rate, Power Control SubChannel insertion rate, spreading code index, QOSF index and the channel model.
标签： Station simulates Forward between
上传时间： 2015-03-28
上传用户：13215175592
Detecting Network Intrusions via Sampling_A Game Theoretic Approach Internet Quarantine_Requirements for Containing Self-Propagating Code Modeling Malware spreading Dynamics Modeling the Spread of Active Worms
标签： Quarantine_Requireme Intrusions Sampling_A Detecting
上传时间： 2013-11-30
上传用户：xc216
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
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
