wideband_OFDM

说明：  自己做的蓝牙协议栈,目前完成了hci,l2cap和sdp层(Own Bluetooth protocol stack)

采用BPSK调制技术，用ZF和ZF加并行干扰消除的方法检测系统的误码率。(Using BPSK modulation technique, with the ZF and ZF plus parallel interference cancellation method to detect the BER.)

手机RSS阅读器(html5)，应用程序编程源码，很好的参考资料。(Mobile phone RSS reader (HTML5), application programming source code, a good reference.)

注水算法，经典注水算法在MIMO自适应资源分配中功率分配的最优算法(water filling algorithm)

实现了polar在BEC信道下的编译码，画出了误码率图像(The encoding and decoding of polar in BEC channel is realized, and the bit error rate image is drawn.)

说明：  该资源为应用GNUradio工具，对USRP的开发，主要实现了频谱感知，以及根据频谱感知的结果进行ofdm通信的功能(This resource is the development of USRP using gnuradio tool. It mainly realizes the function of spectrum sensing and OFDM communication according to the result of spectrum sensing)

无线通信中继协作功率控制相关代码Wireless communication relay cooperative power control related code(Wireless communication relay cooperative power control related code)

OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道，是每个子信道的想干带宽，从而实现平稳衰落。搭建了完整的OFDM信道链路系统，运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计)，并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)

说明：  在AM信号中，载波分量并不携带信息，仍占据大部分功率，如果抑制载波分量的发送，就能够提高功率效率，这就抑制载波双边带调制DSB-SC（Double Side Band with Suppressed Carrier），简称双边带调制（DSB）。(In AM signal, the carrier component does not carry information and still occupies most of the power. If the transmission of the carrier component is suppressed, the power efficiency can be improved. This is called double side band with suppressed carrier (DSB for short).)

说明：  C++开发104协议，支持主从站。支持多客户端连接(C++ develops 104 protocol to support master and slave stations. Support multi-client connection)