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GPS编程 This is GPS Matlab findPreambles finds the first preamble occurrence in the bit stream of each ch
This is GPS Matlab findPreambles finds the first preamble occurrence in the bit stream of
each channel. The preamble is verified by check of the spacing between
preambles [6sec] and parity checking of the first two words in a
subframe. At the same time function returns list of channels, that a ...
matlab例程 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
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 ...
其他 WLAN仿真－发送机 wlan No Comments 设置完系统参数后
WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行ove ...
驱动编程 $Header: /cvsroot/nsnam/ns-2/mac/mac-tdma.cc,v 1.16 2006/02/22 13:25:43 mahrenho Exp $ // // mac-t
$Header: /cvsroot/nsnam/ns-2/mac/mac-tdma.cc,v 1.16 2006/02/22 13:25:43 mahrenho Exp $
//
// mac-tdma.cc
//
// Preamble TDMA MAC layer for single hop.
// Centralized slot assignment computing.
通讯/手机编程 WiseMAC is a medium access control protocol designed for the WiseNETTMwireless sensor network. It i
WiseMAC is a medium access control protocol designed for
the WiseNETTMwireless sensor network. It is based on
CSMA and uses the preamble sampling technique to minimize
the power consumed when listening to an idle medium.
通讯/手机编程 X-MAC, a low power MAC protocol for wireless sensor networks (WSNs). Standard MAC protocols develo
X-MAC, a low power MAC
protocol for wireless sensor networks (WSNs). Standard
MAC protocols developed for duty-cycled WSNs such as
BMAC, which is the default MAC protocol for TinyOS, employ
an extended preamble and preamble sampling.