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Description: OFDM vs CDMA，一份report，而且还有之后的勘误-OFDM vs CDMA, a report, but also after the corrigenda
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Size: 456704 |
Author: zz |
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Description: 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-This project aim was to build wireless software modem for data communicationbetween two computers using an acoustic interface in the voice frequency range (20Hz-20000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz-20000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz-16000Hz). 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 divisionmultiplexing) modulation, synchronization by LMS sequence, channel estimation (noequalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of2 or 4. To optimize the probability of error, these symbols were mapped using Graymapping.Report
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Description: 课程作业，本人自编的OFDM峰均功率比抑制算法仿真(基于编码的方法和基于SLM的方法)，含详细的仿真报告-Coursework, I own the OFDM PAPR suppression algorithm simulation (based on the coding method and the method based on the SLM), containing a detailed simulation of the report
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Size: 183296 |
Author: Liu |
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Description: 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.-Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the world have specialized teams working in the optimization of OFDM for
countless applications. Here, at the Georgia Institute of Technology, one of such
teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part
of the Georgia Center for Advanced Telecommunications Technology (GCATT).
The purpose of this report is to provide Matlab code to simulate the basic processing
involved in the generation and reception of an OFDM signal in a physical
channel and to provide a description of each of the steps involved. For this purpose,
we shall use, as an example, one of the proposed OFDM signals of the Digital
Video Broadcasting (DVB) standard for the European terrestrial digital television
(DTV) service.
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Size: 861184 |
Author: 田静 |
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Description: 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.-Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the world have specialized teams working in the optimization of OFDM for
countless applications. Here, at the Georgia Institute of Technology, one of such
teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part
of the Georgia Center for Advanced Telecommunications Technology (GCATT).
The purpose of this report is to provide Matlab code to simulate the basic processing
involved in the generation and reception of an OFDM signal in a physical
channel and to provide a description of each of the steps involved. For this purpose,
we shall use, as an example, one of the proposed OFDM signals of the Digital
Video Broadcasting (DVB) standard for the European terrestrial digital television
(DTV) service.
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Size: 160768 |
Author: 田静 |
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Description: OFDM Report on structure waveforms.. Contains very usefull information for synchronization in CDMA, WLAN and WiMAX
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Size: 20480 |
Author: citidhl |
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Description: The target of the assignment is to familiarize the student with MIMO channel modeling.
The work is based on L. Schumacher’s MIMO channel model implementation, with
added capacity analysis. First the channel model implementation is introduced, and
thereafter analysis on MIMO channel with different parameters is done. Finally a short
report on the results is written.
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Author: zxc |
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Description: it is a complete project on QAM based OFDM
in which it is the complete report on GUI-it is a complete project on QAM based OFDM
in which it is the complete report on GUI
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Size: 6144 |
Author: YASIR |
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Description: 国外的详细的OFDM设计过程文档，对学习OFDM非常有帮助，并且有仿真结果。-This report discusses the design and implementation of an OFDM modem for a simplex communication
between two PCs over a frequency selective channel. First a brief introduction is
provided by explaining the backrground and the specification of the project. Then the report
deals with the system model. Each block of the OFDM system is described (IFFT/FFT, cyclic
prefix, modulation/demodulation, channel estimation, bit loading). In the following section, the
system architecture is analysed. The transmission protocol, as well as the system parameters
are explained in details. Then, the DSP implementation is discussed. Finally, the results are
provided in the last chapter.
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Description: 这是我们课程设计时所写的一个OFDM系统仿真程序，OFDM系统仿真.doc是我当时写的设计报告。已通过测试。-This is what we wrote a curriculum designed OFDM system simulation program, OFDM system simulation. Doc is a design report I had written. Has been tested.
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Size: 54272 |
Author: 魏琴 |
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Description: it contains report ,matlab codes for PAPR ofdm reduction techniques like SLM,PTS methods.all are working.
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Size: 49152 |
Author: raj |
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Description: papr ofdm slm .it contain report and smatlab simulations.all are working ofdm slm method.slm method
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Size: 1024 |
Author: raj |
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Description: OFDM系统在AWGN和多径信道下的仿真。包括cyclic prefix,pilot,channel estimation，误比特率曲线以及实验报告（英文）-OFDM system in AWGN and multipath channel simulation. Including the cyclic prefix, pilot, channel estimation, bit error rate curve and the experimental report (English)
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Size: 317440 |
Author: 谢宁 |
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Description: 多頻帶正交分頻多工之超寬頻系統模擬與等化器設計--超寬頻（Ultra-wideband UWB）是一種已經有實體層規格被提報出來 的新系統，它
具有高位元傳輸率 ，能在短距離 的通訊網路 上提供高速的數 據傳輸。近來 ，因為UWB的
多項優點，使得UWB技術被研究來 用於室內短距離 的傳輸上，且在很多其他的使用上還
有很大的發展潛力 。在這份論 文中，我們將用matlab模擬基於OFDM（Orthogonal
Frequency Division Multiplexing 正交分頻多工）方式的UWB系統基頻部分所有傳送
和接收過程，並設計一個合適的等化器。-Multi-band OFDM Ultra-Wideband System Simulation and Equalizer Design
ABSTRACT :Ultra-Wideband(UWB) is a novel system that has been proposed as a physical layer for a high bit rate, short-range communication network in high performance computing clusters.
Recently, UWB technology is widely studied in many indoor communication systems for its
many advantages, and has a great potential for many other usages. In this report, we are going
to simulate all transmitter and receiver processes of the baseband part of an OFDM-based
UWB system with Matlab, and design an equalizer.
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Size: 722944 |
Author: 阿铁 |
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Description: 这是urban_macro信道加卷积编码的ofdm程序。
包含文件有：qpsk.m qpsk调制程序
deqpsk.m qpsk解调
ofdm_siglepath.m 单径瑞利衰落程序
sigle_path_conv.m 单径瑞利衰落信道加卷积编码程序
ofdm_urban_macro.m urban_macro信道的ofdm程序
ofdm_my.m urban_macro信道加卷积编码的ofdm程序
viterbi.m viterbi译码程序
cnv_encd.m 卷积编码程序
sigle_path_conv.fig 为单径瑞利衰落信道加卷积编码结果
ofdm_conv.doc 仿真报告-This is urban_macro channel plus ofdm convolutional coding procedures. Include files are: qpsk.m qpsk modulation demodulation process deqpsk.m qpsk ofdm_siglepath.m single Rayleigh fading process sigle_path_conv.m single Rayleigh fading channel plus convolution coding process ofdm_urban_macro.m urban_macro ofdm channel program ofdm_my.m urban_macro channel plus ofdm convolutional coding process viterbi.m viterbi decoding process cnv_encd.m convolutional coding process sigle_path_conv.fig single path Rayleigh fading channel plus convolution coding results ofdm_conv.doc Simulation Report
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Size: 51200 |
Author: loseword |
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Description: The guard symbol is the copy of the end of the ofdm symbol to the beginning
of the ofdm symbol.
- The guard symbol is the copy of the end of the ofdm symbol to the beginning
of the ofdm symbol.
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Size: 149504 |
Author: Dhanish |
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Description: OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.-OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.
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Size: 373760 |
Author: satish |
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Description: its about communication.MIMO-OFDM is a transmission technique-its about communication.MIMO-OFDM is a transmission technique...........
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Size: 678912 |
Author: arjun |
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Description: Modern wireless communication systems are expected to support high data rate, allowing users to access high quality multimedia content, anytime-anywhere. To support high data rate, wideband frequency channels are required. However, frequency selective fading over wideband channels introduces inter-symbol interference (ISI) which in turn causes effective throughput to go below required level. Introduction of OFDM transforms wideband frequency selective fading problem to narrowband flat fading and solves the problem of ISI. Symbol detection under flat fading is simple and complicated equalizers at the receiver are not required.
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Author: ravi |
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Description: 包含有数字通信课程实验大作业报告与代码。完成的OFDM的收发包含：1.卷积编码、2.自动增益控制、3.极大似然判决、4.QPSK收发、5.帧检测等，代码在MATLAB2016b环境下编译通过(It contains the report and code of the experiment assignment for the course of digital communication. The completed OFDM transceiver includes: 1. convolutional coding, 2. automatic gain control, 3. maximum likelihood decision, 4. QPSK transceiver, 5. frame detection, etc. The code is compiled and passed in MATLAB2016b environment.)
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Size: 952320 |
Author: 濒一 |
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