RAKEreceiver_CDMA

说明：  关于polar code的信息，我认为非常有用。这不是我写的(As for the information of polar code, I think it is very useful. It is not written by me)

一种PTS算法在OFDM系统中降低PAPR，并且仿真出BER曲线。(A PTS algorithm in OFDM systems reduce PAPR, and simulation out BER curve )

说明：  此程序用matlab编码，可以生成随机骨料，适用于有限元分析。。。。(This program is progressed by matlab, which can generate the concretebone. It can be used in finte element analysis.)

在OPNET平台上对动态源路由协议的一个完整仿真，可以看到网路中譬如延迟吞吐量等各个关键的参数(n OPNET platform for dynamic source routing protocol simulation of a complete, you can see the various critical parameters such as network latency throughput)

东进多媒体交换机实用程序可实现呼叫中心功能(交换机实用程序可实现呼叫中心功能)

simulink搭建的卫星姿态动力学仿真，参考书籍是章仁为的卫星鬼道姿态动力学仿真，想学对卫星姿态有兴趣的同学强烈推荐，(simulink to build the satellite attitude dynamics simulation, reference books is Zhang Ren ghosts satellite attitude dynamics simulation, I wanted to learn for students interested in satellite attitude is strongly recommended,)

一个科技公司使用的GPRS接收程序。可是直接使用(A PROGRAM OF GPRS SERVER 。IT S VERY EASY TO USE.)

说明：  不同信噪比下，能量检测虚警概率与检测成功率的关系(The relationship between energy detection false alarm probability and detection success rate under different SNR. .)

说明：  完整的rs+卷积编译码程序，可运行通过，并生成误码率曲线图(rs+conv encoding and decoding)

Abstract—In this paper, we study the joint estimation of inphase and quadrature-phase (I/Q) imbalance, carrier frequency offset (CFO), and channel response for multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing (OFDM) systems using training sequences. A new concept called channel residual energy (CRE) is introduced. We show that by minimizing the CRE, we can jointly estimate the I/Q imbalance and CFO without knowing the channel response. The proposed method needs only one OFDM block for training and the training symbols can be arbitrary. Moreover when the training block consists of two repeated sequences, a low complexity two-step approach is proposed to solve the joint estimation problem. Simulation results show that the mean-squared error (MSE) of the proposed method is close to the Cramer-Rao bound (CRB). Index Terms—MIMO OFDM, CFO, I/Q imbalance, channel estimation.