CDMA_SYSTEMS

作品数：40被引量：30H指数：3
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Joint Signature Vectors and DOAs Tracking for Multicarrier CDMA Systems
《Chinese Journal of Electronics》2007年第2期326-330,共5页ZHANG Yiwen YIN Qinye DING Le 
This work is supported by the National Natural Science Foundation of China （No.60572046, No.60502022）.
A blind iterative signature vectors and Direction of arrival （DOA） estimation algorithm was derived for Multicarrier Code division multiple access （MCCDMA） system equipped with a Uniform linear array （ULA） at th...
关键词：DOA （Direction of arrival） MC-CDMA （Multicarrier Code division multiple access） Projection Subspace tracking. 
Space-Time Block Coding for Time Slotted CDMA Systems with Frequency-Selective Fading
《Chinese Journal of Electronics》2003年第4期626-629,共4页WANGYingmin YIKechu NIUZhongxia TIANHongxin 
The radio channel fading is one of the most important physical limitations for wireless mobile communications. Space-time coding is a coding technique that is designed for use with multiple transmit antennas and offer...
关键词：CDMA网络 选择性频率衰减 无线移动通信 空时域编码技术 接点检测 
Multicarrier CDMA Systems with Transmit Diversity in Two—Ray Multipath Fading Channels
《Chinese Journal of Electronics》2003年第3期415-418,共4页FANLingtao CHENJian 
Transmit diversity is recently proposed to reduce the effects in fading channels in various wireless applications. In this paper, we apply a transmit diversity technique to downlink multicarrier CDMA (Code devision mu...
关键词：多用户码分多址 CDMA 传输分集 接收机 多径信道 
A Novel Multiuser Detection Using Group Classification with Smart Antennas for Multi—carrier CDMA Systems
《Chinese Journal of Electronics》2003年第2期208-214,共7页LIJunqiangI K.B.Ltaief CAOZhigang 
The capacity of MC-CDMA communica-tion systems can be significantly enhanced by employing multiuser detection (MUD) techniques. In this paper, a group oriented MUD based on the combination of smart antennas and multi...
关键词：多载波 多用户检测 CDMA 码分多址 智能天线 无线通信 
On the Performance of Synchronous DS—CDMA Systems with Generalized Orthogonal Spreading Codes
《Chinese Journal of Electronics》2003年第2期219-224,共6页HAOLi FANPingzhi 
A new synchronous DS-CDMA system em-ploying generalized orthogonal (GO) spreading codes and maximum ratio combining (MRC) scheme is presented in this paper. In particular, the forward link of the system is discussed i...
关键词：DS-CDMA 直序列码分多址 同步 多路径传播 相关函数 
Iterative Multiuser Receiver for Convolutionally Coded DS—CDMA Systems
《Chinese Journal of Electronics》2003年第1期39-42,共4页ZHANGAiping LUOHanwen WANGHaoxing 
In this paper,an iterative multiuser receiver for convolutionally coded direct sequence-code division multiple access(DS-CDMA)system is proposed.The proposed receiver consists of a soft-in/soft-out(SISO)decision-feedb...
关键词：直序列码分多址 多用户检测 SISO信号 循环处理 DS-CDMA 
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