pso

正交频分复用（OFDM）是一种特殊的多载波传输技术。它可以有效地对抗多径衰落，能够以很高的频谱利用率来实现高速数据传输。分析介绍了OFDM系统的基本原理及系统性能，以Matlab为开发平台，仿真了OFDM系统的误码率，仿真结果表明OFDM系统在较低信噪比下也具有较好的性能(Orthogonal Frequency-division Multiplexing（OFDM） is a special kind of multi-cartier transmission technology. It can effectively overcome multi-path fading and increase the spectral usage efficiency to implement high-speed data transmission. This paper analyzes the basic principle of OFDM system and system performance, and simulates the Bit Error Rate （BER） of OFDM system on the platform of Matlab. The simulation results show that the OFDM has a good performance.[)

使用matlab仿真OFDM。其中描述了OFDM的基本原理，含详细的公式推导过程。在文章最后附有matlab代码，并且有仿真结果可参考。(Matlab simulation using OFDM. Describes one of the basic principles of OFDM, with a detailed formula derivation process. At the last article with matlab code, and have the simulation results can be found.)

说明：  用matlab的mesh命令画出所要求解的大量数据文件的图形(The mesh command using matlab draw large amounts of data required for solution of graphic files)

MATLAB的GUI制作例子，用MATLAB7.0打开.(MATLAB GUI examples produced using MATLAB7 open.)

统计模拟（蒙特卡洛法）,航空运输排队，机场设计(Statistical simulation (Monte Carlo method), Air Transport queuing, airport design)

protocol implementation with different routing............................

TEEN is a protocol developed for wireless sensor networks and is a routing protocol

说明：  用于数据集的过采样处理，其中含有一个实例，可以参考。(Oversampling Processing for Data Sets,and it have a sample for study.)

使用matlab程序实现快速傅里叶FFT变换及频谱分析的程序代码(the code for FFT with Matlab)

Parallel Weka Algorithm