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Description: ofdm系统中功率自适应分配算法研究的matlab源代码（运行出误比特图形）-ofdm system power distribution Adaptive Algorithm for the Matlab source code (BER running out plans shape)
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Size: 4660 |
Author: wenjuner |
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Description: ofdm系统中功率自适应分配算法研究的matlab源代码（运行出误比特图形）-ofdm system power distribution Adaptive Algorithm for the Matlab source code (BER running out plans shape)
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Size: 4096 |
Author: wenjuner |
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Description: 很好的OFDM的基于MATLAB的仿真程序包，且包含了最终结果图.-montecarlo
type montecarlo in the command window and wait for a long time..
_simulation of the complete OFDM system.
_use of a very large file in order to get probabilities.
_loop over different value of the noise.
_compute the SNR for each value of the noise.
_provide the SNR/BER plot.
if you are in a rush : simulation_system !!
go into the right folder and type simulation_system in the command window.
_then type the value of the noise power (range = [-20,10])
_the function provides the channel estimation, the bit allocation,
and a plot illustrating the errors.
_this is a fast function (less pilot, no synchronization, small file).
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Size: 96256 |
Author: 田静 |
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Description: 我们将通过MATLAB仿真在发送平均功率和传输速率相同的情况下，在传输特性为理想的平的和非平(即存在码间干扰)的信道上，对多载波OFDM和单载波QPSK的误码率进行比较。-We will send the average power by MATLAB simulation and the transmission rate in the same circumstances, in the transmission characteristics of the ideal of peace and non-flat (as is the inter-symbol interference) of the channel, multi-carrier OFDM and single carrier QPSK BER rates were compared.
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Size: 51200 |
Author: 刘凡 |
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Description: 为了提高MIMO-OFDM系统的数据传输率和频谱利用率,提出一种新的自适应算法。该算法在保证信道质量所需误码率和总发射功率的前提下,按照各个子载波衰落程度动态地分配比特和功率,使系统的总数据传输速率最大。理论分析得出,该算法降低了系统运算复杂度,能很大地改善系统的整体性能。-In order to improve data transmission rates and spectrum efficiency of MIMO-OFDM systems,this paper proposes a new adaptive algorithm. While the channel transmission quality to meet the requirements of a certain target BER(bit error rate) and total emissive power,according to each sub-carrier decline degree to adjust each sub-carrier modulation method freely,try to minimize the total data rate of system. Theory analysis shows the algorithm can reduce system complexity and improve overall performance of the ...
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Size: 205824 |
Author: 王睿 |
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Description: In this paper, we present a Selected Mapping (SLM) PAPR reduction technique for MIMOOFDM
system with special protection of Side Information (SI). Selected Mapping (SLM)
is a powerful PAPR reduction technique since it does not cause any signal distortion and
simple to implement. As a special protection for the Side Information (SI) of SLM technique,
we propose a SI power allocation procedure. Simulation results show that our proposed
technique gives significantly better BER performance than the ordinary SLM technique for
MIMO-OFDM systems. Analysis for the optimum SI power allocation is also presented.
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Size: 370688 |
Author: redami |
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Description: In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which increases cost of the system. PAPR is ratio of peak power to average power of time domain complex baseband signal which is to be transmitted. We will discuss PAPR reduction techniques below.-In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which increases cost of the system. PAPR is ratio of peak power to average power of time domain complex baseband signal which is to be transmitted. We will discuss PAPR reduction techniques below.
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Size: 591872 |
Author: manyam srikanth |
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Description: Orthogonal frequency division multiplexing (OFDM) has been proved as the dominant modulation technique for 4G communication. The use of relaying improves the BER performance of OFDM system. In this paper the BER performance of AF relaying with average power constraint (APS) is derived for an OFDM system. Also how frequency diversity scheme improves the BER performance in single antenna AF relay based OFDM system is discussed properly.
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Size: 95232 |
Author: Ch.Manoj kumar |
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Description: 搭建OFDM通信系统的框架，阵列信号处理的高分辨率估计，DC-DC部分采用定功率单环控制，给出接收信号眼图及系统仿真误码率，能量熵的计算，在matlab R2009b调试通过。- Build a framework OFDM communication system, High-resolution array signal processing estimates, DC-DC power single-part set-loop control, The received signal is given eye and BER simulation systems, Energy entropy calculation, In matlab R2009b debugging through.
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Size: 4096 |
Author: vjrqva |
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Description: 采用波束成形技术的BER计算，利用自然梯度算法，采用加权网络中节点强度和权重都是幂率分布的模型，对信号进行频谱分析及滤波，搭建OFDM通信系统的框架。- By applying the beam forming technology of BER Use of natural gradient algorithm, Using weighted model nodes in the network strength and weight are power law distribution, The signal spectral analysis and filtering, Build a framework OFDM communication system.
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Size: 11264 |
Author: uiwwzgm |
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Description: 给出接收信号眼图及系统仿真误码率，搭建OFDM通信系统的框架，电力系统暂态稳定程序，可以进行暂态稳定计算。- The received signal is given eye and BER simulation systems, Build a framework OFDM communication system, Power System Transient Stability Program, can be transient stability.
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Size: 4096 |
Author: ujckhvpj |
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Description: Matlab code which implements MB-OFDM transmission block as per ECMA 368 standard.
OFDM over frequency selective wireless channels
simulation code for Peak-to-Average Power Ratio (PAPR) reduction in MIMO OFDM/A system using CMA
This is an OFDM simulation that gives you the PAPR, BER, and the PSD before and after the SSPA.
the program distribute an amount power among ofdm subchannel to make the capacity of a channel as ma
Representation of OFDM signal with PAPR reduction using Clipping and SLM Techniques.
The complete project of OFDMA system. It tries to maximize the network capacity.
Link and system level simulator for OFDM based wireless broadband systems
Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitter/receiver modeling.
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Size: 858112 |
Author: Sina |
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Description: MIMO OFDM matlab simulation, The received signal is given eye and BER simulation systems, Virtual power wireless sensor network coverage.
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Size: 58368 |
Author: 张博亮
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Description: 设计一个OFDM系统，并求OFDM信号的功率谱和频谱，以及OFDM系统的误码率性能。(A OFDM system is designed, and the power spectrum and spectrum of OFDM signal are obtained, and the bit error rate performance of OFDM system is also discussed.)
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Size: 1024 |
Author: pandaaa
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