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wcnc08-bc
Effi cient Cooperative Diversity Schemes and Radio
Resource Allocation for IEEE 802.16j
- 2011-09-27 19:10:26下载
- 积分：1
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SWA2000
国家环保总局污染源在线通讯协议的简化版，主要用于环保污染监测设备的数据上传(Sources of the State Environmental Protection Administration of the simplified version of online communication protocols, mainly for environmental pollution monitoring equipment, data upload)
- 2009-04-12 15:38:36下载
- 积分：1
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xws-security-3.0
xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)
- 2014-04-23 16:57:39下载
- 积分：1
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DVB-T
这是研究欧洲DVB-T标准的一套合集，主要介绍了DVB-T单频网的同步技术，以及系统设计和实现。其中对DVB-T单频网进行了详细的讲解，对研究我国的数字电视广播技术也有很好的借鉴作用。(This is the study of the European DVB-T standard a collection, mainly introduces the synchronization technology of DVB-T single frequency network, and the system design and implementation. It make a detailed explanation of DVB-T single frequency network, also have a very good reference for digital television broadcast technology research in china.)
- 2013-08-31 22:22:55下载
- 积分：1
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IEC870-101-102-103-104-modbus-cdt
电力最常用的规约的学习资料，包括101,102,103,104，modbus，cdt，其中104还有测试程序，及解析工具；(
The most commonly used power statute learning materials, including 101,102,103,104, modbus, cdt, where there are 104 test procedures, and analysis tool )
- 2016-05-12 14:47:36下载
- 积分：1
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Diversity
无线网络中分集合并，包含原理，流程图，仿真图，源代码(Cooperative Diversity in Wireless Networks)
- 2012-05-17 10:12:36下载
- 积分：1
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Spread-spectrum
This document describes about the digital modulation techniques especially about spread spectrum.
- 2012-07-06 15:46:04下载
- 积分：1
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05441004
Multiple input multiple output techniques combined
with orthogonal frequency division multiplexing (MIMO-OFDM)
provide a promising approach for wireless systems. However, a
serious drawback of the OFDM system is the high peak-toaverage
power ratio (PAPR), which may severely affect the
power efficiency of RF power amplifiers. In this paper, we
propose a simple method to reduce the PAPR of MIMO-OFDM
signals based on the use of unused subcarriers. Instead of
processing the signals at each transmitter separately, a peak
cancelling signal is generated at one antenna and is then applied
to all the others with only simple modifications. Simulation has
shown that a minimum 2 dB reduction in PAPR can be achieved
for all transmit signals using this approach. As the signal
processing is nearly all done at a single transmitter, repetition of
the operations at each transmitter is avoided, and therefore the
overall cost of the system can be significantly reduced.
- 2011-11-05 01:46:42下载
- 积分：1
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IEEE802.15.4a
ieee802.15.4a信道模型.是2-10G部分，是SV模型(ieee802.15.4a channel model )
- 2011-05-16 21:40:58下载
- 积分：1
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gprs fundamental
GPRS fundamental review
- 2018-01-16 13:30:00下载
- 积分：1
