基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.
标签： simulator i.e. system-level link-level
上传时间： 2016-03-15
上传用户：xsnjzljj
This project aim was to build wireless software modem for data communication between two computers using an acoustic interface in the voice frequency range (20Hz– 20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz – 20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz – 16,000Hz). The test files used as information files were text files. This goal was attained both in an incoherent scheme and in a coherent scheme. Build under Matlab code, our modem uses OFDM (orthogonal frequency division multiplexing) modulation, synchronization by LMS sequence, channel estimation (no equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of 2 or 4. To optimize the probability of error, these symbols were mapped using Gray mapping. Report
标签： communication computers software wireless
上传时间： 2014-05-29
上传用户：wangdean1101
我的文件管理设计中对于文件管理的功能主要有以下几个：输入文件（input）， 从文件列表中删除一个记录（delete a record from list），保存文件（save）， 查找文件（search record on table），文件的列表（list）
上传时间： 2013-12-10
上传用户：zxc23456789
It it a convertor program. Just need to input your birth , it will show your astrology
标签： your convertor astrology program
上传时间： 2016-03-31
上传用户：waitingfy
vhdl source,ver-fir-coefficient,simulink of fir with soft ware input
标签： ver-fir-coefficient simulink source input
上传时间： 2013-12-23
上传用户：jackgao
// This program measures the voltage on an external ADC input and prints the // result to a terminal window via the UART. // // The system is clocked using the internal 24.5MHz oscillator. // Results are printed to the UART from a loop with the rate set by a delay // based on Timer 2. This loop periodically reads the ADC value from a global // variable, Result.
标签： the measures external program
上传时间： 2013-12-27
上传用户：trepb001
我刚完成的基于Quartus Two 开发环境全部用Verilog硬件描述语言编译无误的MSK调制解调器
上传时间： 2016-04-14
上传用户：CHINA526
DirectFB is a thin library that provides hardware graphics acceleration, input device handling and abstraction, integrated windowing system with support for translucent windows and multiple display layers on top of the Linux Framebuffer Device.
标签： acceleration DirectFB hardware graphics
上传时间： 2014-06-30
上传用户：wangchong
1) Write a function reverse(A) which takes a matrix A of arbitrary dimensions as input and returns a matrix B consisting of the columns of A in reverse order. Thus for example, if A = 1 2 3 then B = 3 2 1 4 5 6 6 5 4 7 8 9 9 8 7 Write a main program to call reverse(A) for the matrix A = magic(5). Print to the screen both A and reverse(A). 2) Write a program which accepts an input k from the keyboard, and which prints out the smallest fibonacci number that is at least as large as k. The program should also print out its position in the fibonacci sequence. Here is a sample of input and output: Enter k>0: 100 144 is the smallest fibonacci number greater than or equal to 100. It is the 12th fibonacci number.
标签： dimensions arbitrary function reverse
上传时间： 2016-04-16
上传用户：waitingfy
This belongs to the correspondence principle topic, the topic is under two kind of channels the 2psk system analysis
标签： the topic correspondence principle
上传时间： 2013-12-19
上传用户：edisonfather
