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Description: waveform and receiver design considerations on wideband CDMA 宽带CDMA系统的波形和接收机设计-waveform and receiver design considerati ons on wideband CDMA Wideband CDMA system waveform and receiver design
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Size: 590615 |
Author: balfer |
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Description: (eBook) Theory and Applications of OFDM And CDMA - Wideband Wireless Communications (2005).zip
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Size: 4225217 |
Author: Chat |
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Description: waveform and receiver design considerations on wideband CDMA 宽带CDMA系统的波形和接收机设计-waveform and receiver design considerati ons on wideband CDMA Wideband CDMA system waveform and receiver design
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Size: 590848 |
Author: balfer |
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Description: (eBook) Theory and Applications of OFDM And CDMA - Wideband Wireless Communications (2005).zip-(eBook) Theory and Applications of OFDM And CDMA- Wideband Wireless Communications (2005).zip
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Size: 4225024 |
Author: Chat |
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Description: 随着蜂窝移动通信市场的巨大发展，下一代通信将是移动多媒体通信。这种情况产生了一个问题，如何对语音信源以外的多媒体信源进行功率控制。在探讨这个问题上，我们引入微观经济学中的数学模型和概念以及博弈论理论。在本文中，电话的通话质量被称为“效度”，对于一个CDMA电话通信的分布式功率控制被看作是一个‘非协作的博弈’。-CDMA mobile communication system is a technology which will be used in the next-generation communications system, so wideband CDMA technology has been unprecedented attention, and a large number of improved algorithm to improve the performance of CDMA system has emerged in its various research on key technologies.
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Size: 15360 |
Author: 飞云 |
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Description: ITU-T和3GPP联合制订的全球第一个宽带语音编码算法,在TD-CDMA和WCDMA系统中为推荐的语音压缩算法-ITU-T and 3GPP jointly developed the world' s first wideband speech coding algorithm, in the TD-CDMA and WCDMA systems as recommended by the voice compression algorithm
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Size: 1198080 |
Author: 张勇 |
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Description: 宽带CDMA系统天线阵列的设方案，对CDMA通信系统设计者有参考意义-Wideband CDMA system, the antenna arrays based programs, CDMA communication system designers have reference value
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Size: 2101248 |
Author: 杨林 |
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Description: 经典书籍 剑桥大学大学出版社： 无线通信基础-Book Description:
The past decade has seen many advances in physical layer wireless communication theory and their implementation in wireless systems. This textbook takes a unified view of the fundamentals of wireless communication and explains the web of concepts underpinning these advances at a level accessible to an audience with a basic background in probability and digital communication. Topics covered include MIMO (multi-input, multi-output) communication, space-time coding, opportunistic communication, OFDM and CDMA. The concepts are illustrated using many examples from real wireless systems such as GSM, IS-95 (CDMA), IS-856 (1 x EV-DO), Flash OFDM and UWB (ultra-wideband). Particular emphasis is placed on the interplay between concepts and their implementation in real systems. An abundant supply of exercises and figures reinforce the material in the text. This book is intended for use on graduate courses in electrical and computer engineering and will also be of great interes
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Size: 4332544 |
Author: opaque |
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Description: Theory and Applications of OFDM and CDMA Wideband Wireless Communications This book has both theoretical and practical aspects. It is intended to provide the reader
with a deeper understanding of the concepts of OFDM and CDMA. Thus, the theoretical
basics are analyzed and presented in some detail. Both of the concepts are widely applied
in practice. Therefore, a considerable part of the book is devoted to system design and
implementation aspects and to the presentation of existing communication systems.
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Size: 4016128 |
Author: ghanim |
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Description: Smart Antennas at Handsets for the 3G Wideband CDMA Systems and
Adaptive Low-Power Rake Combining Schemes
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Size: 1294336 |
Author: Thomas |
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Description: Theory and Applications of
OFDM and CDMA
Wideband Wireless Communications
Henrik Schulze
and
Christian L¨uders
Both of
Fachhochschule S¨udwestfalen
Meschede, Germany
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Size: 4016128 |
Author: shahzad |
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Description: 关于宽带CDMA系统的仿真程序，用C语言编写。内容保护各种信道模型，调制信号如QPSK的产生，各种接收如RAKE接收-Wideband CDMA system on the simulation program, using C language. Content Protection various channel models, such as the QPSK modulation signal generation, a variety of receivers such as RAKE receiver
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Size: 157696 |
Author: linbin |
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Description: Simulation environment for
Software Defined Radio
with application to Wideband CDMA
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Size: 333824 |
Author: amirhossein |
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Description:
W-CDMA stands for Wideband Code Division Multiple Access
Its an air interface standard found in 3G mobile telecommunications networks designed for “always-on” packet-based wireless service, so that computers entertainment devices and telephones may all share the same wireless network and be connected to the internet, anytime anywhere.
It was adopted as a standard by the ITU under the name "IMT-2000 direct spread."
It is the technology used in the Universal Mobile Telecommunications System (UMTS) and is also known as UMTS-FDD.
It utilizes the DS-CDMA channel access method and the FDD duplexing method to achieve higher speeds and support more users compared to most time division multiple access (TDMA) schemes used today.
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Size: 1129472 |
Author: Aanandha Saravanan |
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Description: WB-AMR VMR-WB 是新型可变速率多模式宽带语音编解码器，专为无线 CDMA 2000标准而设计，目的在于在 50 至 7000 HZ 的频带上进行语音编码，采样率为 16 KHZ。VMR-WB 基于 3GPP AMR-WB (G722.2) 编解码器，在每秒速率12.65 Kbit 上可实现互操作。 VMR-WB 工作模式有四种，具体选择哪种应视网络的流量情况而定。前三种模式专门针对 CDMA 系统，而第四种模式为 AMR-WB 互操作性模式。 VMR-WB 与 AMR-WB 的互操作性允许 GSM/WCDMA 与 CDMA2000 系统无须进行自动解码即可通信，这就不至于增加额外的延迟以及引起语音质量下降-WB-AMR VMR-WB is a new variable-rate multimode wideband speech codec designed for wireless CDMA 2000 standard design, aimed at 50 to 7000 HZ frequency band for voice coding, sampling rate of 16 KHZ. VMR-WB based on the 3GPP AMR-WB (G722.2) codec rate of 12.65 Kbit per second can be interoperable. VMR-WB mode four, the specific choice of which network traffic should be as the case may be. The first three models specifically for the CDMA system, while the fourth mode of AMR-WB interoperable mode. VMR-WB and AMR-WB allows the interoperability of GSM/WCDMA and CDMA2000 systems can not automatically decode the communication, which without increasing the delay and the additional decline in voice quality caused by
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Size: 189440 |
Author: 观光客 |
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Description: Reconfigurable Wideband Digital Receiver System Architecture for W-CDMA
The objective of the re-configurable wideband digital receiver system for W-CDMA described in this application note is
to provide a solution for a single slot VME-based software radio system which addresses both the signal processing
complexity of Wideband CDMA (W-CDMA) and the configurability to adapt to third generation (3G) standards as they
emerge and evolve.
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Size: 20480 |
Author: hussam |
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Description: The goal of this paper is to comprehensively review the handover policies in wideband code division multiple access (WCDMA) system.
Mobile cellular communication becomes more and more important in today’s communication. In a cellular network, the radio and fixed links required are not permanently allocated for the duration of a call. Handover is the functionality to make an on-going call to a different channel or cell. It maintains a call in progress across cell boundaries in mobile communication. In order to provide a multitude of services, especially multimedia and high-bit-rate packet data. ETSI (European Telecommunications Standards Institute) adopted Wideband code division multiple access as the mainstream air interface solution for the third-generation networks.
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Size: 13312 |
Author: barkata |
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Description: cdma是在数字技术的分支——扩频通信技术上发展起来的一种崭新而成熟的无线通信技术。即将需传送的具有一定信号带宽信息数据，用一个带宽远大于信号带宽的高速伪随机码进行调制，使原数据信号的带宽被扩展，再经载波调制并发送出去。接收端使用完全相同的伪随机码，与接收的带宽信号作相关处理，把宽带信号换成原信息数据的窄带信号即解扩，以实现信息通信。-cdma wireless communication technology in a new and sophisticated digital technology branch- spread-spectrum communication technology developed. The data will be transmitted with a certain signal bandwidth information, bandwidth of the signal with a bandwidth much larger than the high-speed pseudo-random code is modulated, so that the bandwidth of the original data signal to be extended, and then via the carrier modulation and sent. Receiver use exactly the same pseudo-random code, for a correlation processing with the received bandwidth signal, the wideband signal is replaced with the original information data on narrowband signal despreading, in order to achieve information communication.
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Size: 14336 |
Author: jingjing |
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Description: Channel Estimation for 36 Wideband CDMA Systems Using the Kalman
Filtering Algorithm
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Size: 354304 |
Author: Naser |
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Description: This course provides advanced knowledge of wideband wireless communication
techniques. It include the areas of diversity: Time diversity, Space diversity, Frequency
TELE9753 Advanced Wireless Communications 2
diversity; Wideband CDMA systems, Wideband OFDM systems, antenna arrays, MIMO
channel modeling in the angular domain and statistical models, smart antennas
techniques, multiple-input/multiple-output communications systems, spatial multiplexing,
space-time processing and coding; and multiuser detection and receiver designs, multiple
access and interference management, opportunistic communication, multiuser
water filling.
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Size: 92160 |
Author: Khan17
|
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