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无线通信中一个简单的发送分集，介绍了Alamouti空时块码！-This paper presents a simple two-branch transmit
diversity scheme. Using two transmit antennas and one
receive antenna the scheme provides the same diversity order
as maximal-ratio receiver combining (MRRC) with
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An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver.
QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single chan
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RAKE技术与CDMA系统相结合，能够带来系统容量和通信质量的极大提
高。根据军事通信中对设备便携性及低功耗的特殊要求，本文研究了一种便携式
基站的收发系统，重点研究了其中的RAKE接收部分。给出了系统的发送方案和
接收方案，对接收机部分所涉及的关键技术和算法，包括数字下变频技术、匹配相关技术、多径搜索技术、信道估计技术、解调及多径合并技术进行了较为详细的分析和说明。在此基础上，运用VHDL语言进行了硬件平台上FPGA部分的功能实现，并对整个系统进行了调试，给出了一些相关的仿真及测试
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thesis to implement all compulsory features of
the WiMAX OFDM physical layer specified in IEEE 802.16-2004 in Matlab
Simulink. Optional space-time coding for more than one transmit antenna is
implemented to allow performance investigations in v
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中继协作通信系统中接收端最大比合并接收主函数
-Relay cooperative communication system receiver maximal-ratio combining receiver main function
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This paper presents a simple two-branch transmit
diversity scheme. Using two transmit antennas and one
receive antenna the scheme provides the same diversity order
as maximal-ratio receiver combining (MRRC) with one transmit
antenna, and two
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In this survey article, we compare the performance of single transmit antenna
selection (TAS) systems with different kinds of receiver schemes. These
systems include the TAS/switch-and-examine combining (TAS/SEC), TAS/SEC
with postselection (TA
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