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Construction and performance analysis of variable weight zero cross correlation Latin square code for spectral amplitude coding OCDMA systems: 《Optoelectronics Letters》2023年第1期41-48,共8页LIU Yan LI Chuanqi LU Ye; supported by the Guangxi Science and Technology Program(No.AB18126025).; The selection of appropriate codes for an optical code division multiple access(OCDMA)network,which determines the maximum number of users and bit error rate(BER)supported by the system,is crucial.This study proposed ...; 关键词：OCDMA LATIN WEIGHT

Multiple access interference suppression for CDMA systems via l_(∞)-minimization被引量：3: 《Fundamental Research》2022年第5期799-806,共8页Xue Jiang Xingzhao Liu T.Kirubarajan; supported by the National Natural Science Foundation of China under(Grants No.62022054 and 61971279).; A key problem in code-division multiple access(CDMA)system is to mitigate the multiple access interference(MAI)from other users while detecting the desired user.The performance of the conventional minimum output energ...; 关键词：Multiple access interference(MAI) Blind multiuser detection Code-division multiple access(CDMA) Signature waveform mismatch l_(∞)-norm minimization Linear programming

Design of double-weight code for synchronous OCDMA systems with power control被引量：2: 《Chinese Optics Letters》2014年第11期40-44,共5页陈富军罗风光冯刚李斌贺成; supported by the National"863"Program of China(No.2012AA011301);the National"973"Program of China(No.2010CB328302); Double-weight optical code division multiple access（OCDMA） systems are proposed for studying differentiated quality-of-service transmission. Based on quadratic congruence code（QCC）, we construct a one-dimensional ...; 关键词：Codes (symbols) Optical communication Power control Quality of service

Construction and performance analysis of variableweight optical orthogonal codes for asynchronous OCDMA systems被引量：1: 《Optoelectronics Letters》2014年第4期290-294,共5页李传起杨梦婕张秀容陈美娟贺冬冬范庆斌; supported by the University Nature Science Fund of Guangxi Province(No.2010 MS018);the Guilin Scientific Research and Technological Development Program Topics(No.20120104-18); A construction scheme of variable-weight optical orthogonal codes(VW-OOCs) for asynchronous optical code division multiple access(OCDMA) system is proposed. According to the actual situation, the code family can be ob...; 关键词：OCDMA系统光正交码性能分析异步误码率性能雪崩光电二极管光码分多址结构

Hierarchical Matched Filter Implementation on FPGA for WCDMA Systems: 《通讯和计算机（中英文版）》2011年第8期686-692,共7页Aytha.Ramesh Kumar B.L. Malleswari K.Lal Kishore; 关键词：WCDMA系统匹配滤波器 FPGA 过滤器 FIR滤波器现场可编程门阵列移动通信系统有限脉冲响应

Performance Analysis of Downlink MIMO WCDMA Systems Using Antenna Selection in Transmitter and MRC Plus LDD in Receiver over Correlated Nakagami-Fading Channels: 《Wireless Sensor Network》2010年第7期555-561,共7页Siavash Ghavami Mahmood Mohassel Feghhi Bahman Abolhassani; In this paper bit error rate (BER) performance is analyzed for multiple input-multiple output (MIMO) communications systems using antenna selection in the transmitter, maximal ratio combining (MRC) and linear de-corre...; 关键词：MIMO TRANSMITTER Antenna Selection WCDMA Maximum Ratio Combining

Spectral efficiency analysis of OCDMA systems: 《Chinese Optics Letters》2009年第3期183-185,共3页闫辉邱昆凌云; supported in part by the National Natural Science Foundation of China (No. 60572008);the National "863" Program of China (No. 2006AA01Z241); We discuss several kinds of code schemes and analyze their spectral efficiency, code utilizing efficiency, and the maximal spectral efficiency. Error correction coding is used to increase the spectral efficiency, and ...; 关键词：Bit error rate Error correction

Narrow-band interference suppression in Time-Division-Duplex CDMA systems using preprocessing techniques被引量：1: 《Journal of Systems Engineering and Electronics》2008年第5期893-895,共3页Paeiz Azmi Nooshin Tavakkoli; This letter presents two preprocessing techniques for narrow-band interference （NBI） rejection in Time- Division-Duplex （TDD） CDMA systems. In the proposed methods, at the transmitter, by using Karhaunen-Loeve Tra...; 关键词：CDMA narrow-band interference PRE-PROCESSING

HYBRID ORTHOGONAL/RANDOM MULTIPLE ACCESS SCHEME WITH IMPROVED PERFORMANCE FOR DOWNLINK CDMA SYSTEMS: 《Journal of Electronics(China)》2008年第1期47-52,共6页Zhou Gao Fan Pingzhi Hao Li; Supported by the National Natural Science Foundation of China (No.60402017/90604035);the Sichuan Youth Science Foundation (No.05ZQ026-026).; In this paper, a hybrid orthogonal and random multiple access scheme with improved performance for capacity-enhanced downlink Code-Division Multiple-Access (CDMA) systems is presented, which is in fact a combination o...; 关键词：Code-Division Multiple-Access （CDMA） Interleave-Division Multiple-Access （IDMA） Multi-User Detection （MUD） Hybrid multiple access

Optimal Filtering Algorithm-Based Multiuser Detector for Fast Fading CDMA Systems: 《Tsinghua Science and Technology》2007年第6期663-668,共6页张玲张贤达; Supported by the Basic Research Foundation of Tsinghua Na-tional Laboratory for Information Science and Technology (TNList) ;the Major Program of the National Natural Science Foundation of China (No. 60496311); A multiuser detector was developed for fast fading code-division multiple-access systems by representing the channels as a system with the multiplicative noise （SMN） model and then using the known optimal filtering ...; 关键词：multiuser detection multiplicative noise optimal filtering code-division multiple-access fading channel

CDMA_SYSTEMS