Description: 本程序主要是对三种调制方式APSK PSK QAM进行了性能 比较，并采用了最新自适应预失真算法，得出了结论-this procedure is mainly of three PSK modulation APSK QAM compares the performance, and the use of the latest adaptive predistortion algorithm, came to the conclusion that Platform: |
Size: 2048 |
Author:任哲 |
Hits:
Description: 关于自适应调制编码方面的英文书籍.还是比较有用的.-on adaptive modulation and coding of English books. Is quite useful. Platform: |
Size: 1339392 |
Author:唐丽 |
Hits:
Description: 这是一篇OFDM自适应调制与编码的好文章，写方案或者具有设计可以参考。-This is an OFDM adaptive modulation and coding a good article, written with the design of programs or can refer to. Platform: |
Size: 2693120 |
Author:cuimiao |
Hits:
Description: ADPCM(Adaptive Differential Pulse Code Modulation)，是一种针对 16bits( 或8bits或者更高) 声音波形数据的一种有损压缩算法,它将声音流中每次采样的 16bit 数据以 4bit 存储,所以压缩比 1:4. 而且压缩/解压缩算法非常简单,所以是一种低空间消耗，高质量高效率声音获得的好途径。保存声音的数据文件后缀名为 .AUD 的大多用ADPCM 压缩。-ADPCM (Adaptive Differential Pulse Code Modulation), is a response to 16bits (or 8 bits or higher) voice waveform data of a lossy compression algorithm, it will sound each stream sampling 16bit data to 4bit storage, so the compression ratio 1:4. and compression/decompression algorithm is very simple, there is a low space consumption, high-quality sound and efficient way to get good. Preservation of the voice data file is named suffix. AUD mostly using ADPCM compression. Platform: |
Size: 2048 |
Author:王磊 |
Hits:
Description: MIMO-OFDM仿真 自适应算法包括chow算法和camoello算法，调制手段有4－QAM，64－QAM,256-QAM-MIMO-OFDM simulation of adaptive algorithm, including algorithms and camoello algorithm chow, modulation means to have 4-QAM ,64-QAM ,256-QAM Platform: |
Size: 13312 |
Author:白 |
Hits:
Description: This project demonstrates OFDM with adaptive modulation applied to Multiple-Input Multiple-
Output (MIMO) systems.
The analysis and simulation
is considered in two stages. The rst stage involves the application of a variable-rate
variable-power MQAM technique for a Single-Input Single-Output (SISO) OFDM system.
The second stage applies adaptive modulation to a general MIMO system
by making use of the Singular Value Decomposition to separate the MIMO channel into parallel
subchannels. Platform: |
Size: 15360 |
Author:steven |
Hits:
Description: MIMO_OFDM系统中自适应调制技术的研究，希望对研究自适应的朋友能有作用-Adaptive modulation system MIMO_OFDM technology study in the hope that the study of adaptive friends to have the role of Platform: |
Size: 3686400 |
Author:于晓明 |
Hits:
Description: 802.11a wlan物理层仿真，里面有三个物理模型，均用MATLAB编写-802.11a WLAN PHY
There are*three* versions of the 802.11a physical layer model:
R13/IEEE80211a.mdl:
Requires R13 (MATLAB ) and Stateflow (for adaptive modulation control)
R13/IEEE80211a_NoSF.mdl:
Requires R13 (MATLAB), but does not require Stateflow.
R13SP1/IEEE80211a.mdl
Requires R13SP1 (MATLAB), but does not require Stateflow.
This latest version also includes some bug fixes.
All Simulink models require the Communications Blockset. Platform: |
Size: 164864 |
Author:zhangli |
Hits:
Description: Abstract—In this paper we present an initial performance
evaluation of the 3GPP UTRA Long Term Evolution (UTRA
LTE) uplink with baseline settings. The performance results
are obtained from a detailed UTRA LTE uplink link level
simulator supporting OFDMA and SC-FDMA schemes. The basic
transmission scheme for uplink direction is based on singlecarrier
transmission in the form of DFT Spread OFDM with
an MMSE receiver. Two antenna configurations, SISO and 1x2
SIMO are considered in the analysis of spectral efficiency in
addition to Adaptive Modulation and Coding (AMC) and L1-
HARQ. For assessment purposes, the performance results of
SC-FDMA are compared with OFDMA. It is shown that 1x2
SIMO greatly increases the spectral efficiency of SC-FDMA
making it comparable to OFDMA, especially for high coding
rate. Furthermore, SC-FDMA has a flexibility to increase BLER
performance by exploiting frequency diversity. Platform: |
Size: 160768 |
Author:ashokec |
Hits:
Description: 多载波天线下的自适应调制，很好的体现了系统的性能，可以做为源文件-Under the adaptive antenna multi-carrier modulation, well reflects the performance of the system can serve as a source file Platform: |
Size: 41984 |
Author:wangjun |
Hits:
Description: the OFDM PHY is adaptive therefore it supports
multiple schemes BPSK, QPSK, 16-QAM and 64-QAM for
data carriers’ modulation. The constellation diagrams are
gray mapped and shows the magnitudes I and Q (In-phase
and Quadrature) components of each incoming bit(s)
combination along with their normalization factor C to
calculate magnitude of each model Platform: |
Size: 1497088 |
Author:san |
Hits:
Description: 软无线电matlab模拟源程序，这个资料包含matlab实现对信源抽样，编码，调制，解调，载波同步，利用自适应信号处理的手段，实现通信技术的各种功能。-Matlab simulation of soft radio source, this data source contains the matlab implementation of sampling, coding, modulation, demodulation, carrier synchronization, adaptive signal processing means to achieve the various functions of communication technology. Platform: |
Size: 762880 |
Author:林琪 |
Hits:
Description: Modulation is the approach by which a carrier wave has the ability to convey the message or digital signal. There are three essential methods to this: amplitude, frequency and phase shift keying. More bits per symbol or period can be encoded using a high order of modulation. Distinctive order modulation permits to send more bits per symbol and in this way attain higher throughputs or better spectral efficiencies [5]. The utilization of adaptive modulation (AM) permits a wireless system to pick the highest order modulation upon the channel conditions. Platform: |
Size: 1907 |
Author:Gomathi |
Hits:
Search - adaptive modulation OF