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: 1339483 |
Author:唐丽 |
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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 |
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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 |
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Description: model to the fixed wimax physical layer including adaptive coding and adaptive modulation and can tarsmit on ofdm or MIMO ofdm Platform: |
Size: 44032 |
Author:pouyan |
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Description: 本书是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。本书适合与通信工程相关专业的高年级本科生、研究生及工程技术人员阅读。
作者介绍
约翰●G 普罗基斯（JOhn G.Proakis）自1969年9月以来任职于美国东北大学。在1982-1997年期间，他历任电气与计算机工程系系主任、研究生院副院长、院长；同时也在美国通用电话电子公司（GTE）实验室和麻省理工学院（MIT）林肯实验室任职。
普罗基斯博士在Cincinnati大学获得学士学位（BSEE），在MIT获得硕士学位（MSEE）在哈佛大学获得工程领域博士学位。他的专业方向和研究兴趣主要是数字通信和数字信号处理，在这些领域里他已发表了许多论文并出版了多本著作。
-This book is the field of digital communication 1 classical materials, through the random process of probability deals with the review, detailing the digital and analog source coding, digital modulation signal and narrow-band signal and system characteristics, additive white Gaussian noise digital communications modulation and best modulation and detection methods, based on the criteria of maximum likelihood estimates of carrier phase and timing synchronization method, different channel models and channel capacity of random coding, band-limited signal channel design, by the deterioration of inter-symbol interference signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, the decline of the digital communication channel. Book for engineering and communications professional senior undergraduates, graduate students and engineers and technicians to read.
Author
● JOhn G. Proakis since September 1 Platform: |
Size: 18371584 |
Author:成逛 |
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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 |
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Description: 《数字通信》(第4版)是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。 -" Digital communication" (4th edition) is a digital communications of a classic textbook in the field, through the review process, the probability of randomly addressed, details of the digital and analog source coding, digital modulation signal and the narrowband signal and system characteristics, additive white Gaussian noise in digital communication modulation and the best modulation and detection methods, based on maximum likelihood criterion of carrier phase estimation and time synchronization method, different channel model of channel capacity and random coding, band-limited channel signal design by ISI worse signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, fading channel digital communications. Platform: |
Size: 17589248 |
Author:ng |
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Description: Channel simulation for Adaptive coding modulation, BER analyzer any didigital mod with any channel code Platform: |
Size: 14336 |
Author:silver_83 |
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Description: 《数字通信（第四版）》答案
《数字通信》(第4版)是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。-The solution of "Digital communication"
" Digital communication" (4th edition) is a digital communications of a classic textbook in the field, through the review process, the probability of randomly addressed, details of the digital and analog source coding, digital modulation signal and the narrowband signal and system characteristics, additive white Gaussian noise in digital communication modulation and the best modulation and detection methods, based on maximum likelihood criterion of carrier phase estimation and time synchronization method, different channel model of channel capacity and random coding, band-limited channel signal design by ISI worse signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, fading channel digital communications. Platform: |
Size: 1471488 |
Author:忍着 |
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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 |
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Description: The major evolution of UMTS (Universal Mobile Telecommunications System) in recent years
is the High Speed Downlink Packet Access (HSDPA)which provides data rates up to 10Mbps. The
implementation of HSDPA includes multicodes transmission in joint application with Adaptive
Modulation and Coding (AMC) as well as Hybrid Automatic Repeat reQuest (HARQ).
This thesis deals with the implementation of the HSDPA simulator in FDD (Frequency Division
Duplex) mode according to 3GPP technical specifications. It also aims to study the HARQ
algorithms for HSDPA. The performance of AMC is significantly degraded when higher order
modulation (16-QAM) is used in a multipath environnement. Moreover, the HSDPA simulator requires
a very long time of computation to provide good performance in multipath channel. In order
to solve this problem, we have introduced a simplified simulator which exploits the performance
of HSDPA over gaussien channel as look-up tables to compute the block error rate in multipath
channel. Platform: |
Size: 801792 |
Author: |
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Description: 本文着重研究网络中使用的MAC协议对语音传输过程的影响，以及无线传
感器网络中适用的语音编码算法。本文首先综述了现有无线传感器网络中常用
的MAC协议，对这些协议进行了分析比较。提出了一种新的基于TDMA的MAC
协议VR-TDMA，为了测试提出的协议性能，在NS2仿真平台上对该协议进行
了仿真，结果证明该协议具有良好的实时性能。然后研究了几种常用语音编码
算法的性能，通过比较研究，认为ADPCM语音编码算法的性能符合无线传感
器网络应用的要求，并对该算法进行了简化，减少了算法运行的计算量。实际
测试表明，算法具有良好的性能。
-In this paper,we concentrate on the mac protocols of wireless sensor networks，
especially the impact imposed on speech transmition．We also want to find a speech
coder which is fit for wireless sensor networks．Firstly,we intorduce the existing mac
protocol，such aS IEEE802．1 1，SMAC protocol，TRAMA protocol，DMAC protoc01．
Moreover we analyse and make comparison of them．Secondly，we propose a new
mac protocol named VR-TDMA．Simulation in NS2 proves that this protocol Canhave pleasing performance in real．time application．Thirdly,we
make a comparison
of some famous speech encoders．The result indicates that ADPCM(Adaptive
Di脏rential Pulse Code Modulation)is simpler than advanced low bit。rate VOICe
coding techniques and doesn’t require as heavy caculations．In this work，We simplify
the algorithm in order tO make it fit for the networks beaer．Actual tests prove that
this simplified algorithm work well in wireless sensor networks． Platform: |
Size: 3294208 |
Author:曾晓丽 |
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Description: This paper describes the protocol reference model of WiMAX，then analyzes the main features of WiMAX physical layer
．
Furthermore，we gives the realization mode of WiMAX physical layer,i．e．WMAN—SC，WMAN—SCa，WMAN—OFDM，
WMAN—OFDMA，WirelessHUMAN．In conclusion，we introduce the principium，advantages and disadvantages of Orthogonal
Frequency Division Multiplexing (OFDM)，Orthogonal Frequency Division Multiple Access(OFDMA)，Hybrid Automatic Repeat
Request(HARQ)，Adaptive Modulation and Coding(AMC)in brie Platform: |
Size: 330752 |
Author:曾长隆 |
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Description: The main objective of this research to implement, and analysis of WiMAX model with different modulation and coding schemes, Adaptive Modulation and Coding (AMC) using OPNET network modeler. By expressing the different types of modulation and coding method that actually used in wireless broadband network like WiFi, WiMAX. And more complex modulation methods that can guarantee higher data rates and require less interference and good line of sight (LOS) to the access points. In addition this research helps in understanding the concept of link adaptation which holds the view of adaptive MCS and other channel adaption attributes. And implementing of an adaptive modulation and coding scheme using AMC profiles to uate the performance according to spectral efficiency.-The main objective of this research to implement, and analysis of WiMAX model with different modulation and coding schemes, Adaptive Modulation and Coding (AMC) using OPNET network modeler. By expressing the different types of modulation and coding method that actually used in wireless broadband network like WiFi, WiMAX. And more complex modulation methods that can guarantee higher data rates and require less interference and good line of sight (LOS) to the access points. In addition this research helps in understanding the concept of link adaptation which holds the view of adaptive MCS and other channel adaption attributes. And implementing of an adaptive modulation and coding scheme using AMC profiles to uate the performance according to spectral efficiency. Platform: |
Size: 2040832 |
Author:sundr |
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Search - adaptive coding and modulation