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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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WiMAX-LOS-and-NLOS-Technology
WIMAX LOS NLOS TECHNOLOGY WHITEPAPER
- 2009-04-03 07:03:38下载
- 积分：1
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57
Underwater optical wireless communication
network
- 2013-08-09 23:13:22下载
- 积分：1
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SPMS_deal
SPMS deal 模块，SPMS deal 模——(SPMS deal 模块)
- 2013-11-08 20:57:16下载
- 积分：1
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syslevel_0109
opnet simulation of random access in CDMA network
- 2011-04-26 11:30:51下载
- 积分：1
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Designing.a.Wireless.Network
This book is very nice for designing a wireless network which describes in details how the wireless systems are designed.
- 2012-01-31 18:40:25下载
- 积分：1
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communication
一份红外通讯的编码设计,已经经过实验，支持一对多。(Encoding of an infrared communication design, and after the experiment, to support one to many.)
- 2012-04-11 11:42:38下载
- 积分：1
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RFM70_receiver_code
RFM 70 radio Transever 2.4GHz
- 2013-09-27 18:50:56下载
- 积分：1
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DF-collaborative-program
协作通信中译码转发方式DF协作方式实验仿真主程序。(DF collaborative experiment simulation main program)
- 2011-07-05 21:10:16下载
- 积分：1
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02_whole
Multi-Carrier Cooperative Wireless Communication
- 2017-11-15 00:10:22下载
- 积分：1
