A Multi-Address Interference Suppression Method with Multiple Waveform Optimization for DS-CDMA Systems

doi:10.7652/xjtuxb201710016

您当前的位置：

首页 >

文章列表页 >

A Multi-Address Interference Suppression Method with Multiple Waveform Optimization for DS-CDMA Systems

更新时间：2025-07-09

- A Multi-Address Interference Suppression Method with Multiple Waveform Optimization for DS-CDMA Systems
- Vol. 51, Issue 10, Pages: 94-99+106(2017)
- 作者机构：
  
  哈尔滨工程大学信息与通信工程学院,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201710016
  CLC： TN914.53
- Online First：10 October 2017，
  
  Published：2017
- 稿件说明：
移动端阅览
A Multi-Address Interference Suppression Method with Multiple Waveform Optimization for DS-CDMA Systems[J]. 2017, 51(10): 94-99+106.
DOI：

A Multi-Address Interference Suppression Method with Multiple Waveform Optimization for DS-CDMA Systems[J]. 2017, 51(10): 94-99+106. DOI： 10.7652/xjtuxb201710016.

摘要

针对异步直扩-码分多址(DS-CDMA)系统多址干扰引起误码率性能降低的问题

提出了DS-CDMA系统多波形优化的多址干扰抑制方法。首先

从常规波形中选取所有q(q≥3)种波形组合

通过q种波形能量谱的平均分别计算每种组合的等效波形能量谱; 然后

引入能量谱平坦度量化计算每种组合的等效波形能量谱平坦度; 最后

优化选取平坦度大的波形组合

并循环使用这些优化波形组合与扩频序列进行扩频信号的构造

同时

CDMA用户在发射端使用构造的扩频信号扩频并在接收端使用同样的扩频信号进行解扩。仿真结果表明:与双波形方法相比

多波形优化方法能够有效抑制用户间的多址干扰

使多址干扰下的CDMA用户误码率性能提升2 dB。

Abstract

A method to suppress multi-address interference(MAI)with multiple waveform optimization for DS-CDMA systems is presented to focus on the problem of bit error rate(BER)performance reduction for MAI. All q(q≥3)waveform combinations(WC)are selected from the conventional waveforms. The equivalent waveform energy spectrum of each WC is calculated through averaging the energy spectrum of the q kinds of waveforms. Then

the energy spectrum flatness is introduced to calculate the flatness of these equivalent waveform energy spectrums. The WC with a larger flatness is selected and is circularly used with spread-spectrum sequence to obtain the spread-spectrum signal. CDMA users use the spread-spectrum signal to spread spectrum at transmitting terminals and to despread-spectrum at receiving terminals simultaneously. Simulation results and a comparison with the double chip waveform method show that the MAI among CDMA users is effectively suppressed

and the value of MAI parameter is further reduced by the multiple waveform optimization method while the BER performance improves by 2 dB.

关键词

Keywords

references

赵泓扬, 赵晓群. 低/零相关区序列偶应用于扩频通信系统的性能分析 [J]. 电路与系统学报, 2007, 12(3): 62-66.

ZHAO Hongyang, ZHAO Xiaoqun. The study of low/zero correlation zone sequence pairs spread spectrum communication system [J]. Journal of Circuits and Systems, 2007, 12(3): 62-66.

孙宇昊, 邹永忠, 张玉艳, 等, 具有零相关窗互补地址码的设计 [J]. 电子与信息学报, 2007, 29(3): 648-651.

SUN Yuhao, ZOU Yongzhong, ZHANG Yuyan, et al. On zero correlation window complementary access code design [J]. Journal of Electronics and Information Technology, 2007, 29(3): 648-651.

丁家昕, 郑宝玉. CDMA中智能天线与多用户检测联合抗MAI的研究 [J]. 南京邮电学院学报(自然科学版), 1999, 19(4): 26-30.

DING Jiaxin, ZHENG Baoyu. A study on joint suppressing of MAI using smart antenna and multiuser detection in CDMA [J]. Journal of Nanjing University of Posts and Telecommunications(Natural Science), 1999, 19(4): 26-30.

刘水生, 沈元隆. DS-CDMA系统中结合多用户检测的功率控制研究 [J]. 电子与信息学报, 2005, 27(1): 75-77

LIU Shuisheng, SHEN Yuanlong. The research of power control combined with multiuser detection in DS-CDMA system [J]. Journal of Electronics and Information Technology, 2005, 27(1): 75-77.

HOU Yantian, LI Ming, YUAN Xu, et al. Cooperative interference mitigation for heterogeneous multi-hop wireless networks coexistence [J]. IEEE Transactions on Wireless Communications, 2016, 15(8): 5328-5340.

ZHOU Qi, MA Xiaoli. Receiver designs for differential UWB systems with multiple access interference [J]. IEEE Transactions on Communications, 2014, 62(1): 126-134.

许耀华, 胡艳军, 张媛媛. 基于离散粒子群算法的CDMA多用户检测方法 [J]. 通信学报, 2005, 26(7): 109-122.

XU Yaohua, HU Yanjun, ZHANG Yuanyuan. Discrete particle swarm optimization algorithm for multi-user detection in CDMA communication system [J]. Journal on Communications, 2005, 26(7): 109-122.

张江, 张杭, 崔志富, 等. 异步DS-CDMA系统中的盲联合干扰消除与多用户检测 [J]. 信号处理, 2013, 29(6): 668-676.

ZHANG Jiang, ZHANG Hang, CUI Zhifu, et al. Blind joint jamming cancellation and multi-user detection for asynchronous DS-CDMA systems [J]. Journal of Signal Processing, 2013, 29(6): 668-676.

ZHENG Wei, LI Jianbao, LUO Yong, et al. Multi-user interference pre-cancellation for downlink signals of multi-beam satellite system [C]∥International Conference on Consumer Electronics, Communications and Networks. Piscataway, NJ, USA: IEEE, 2013: 415-418.

BAO Yachuan, YU Baoguo. A MAI cancellation algorithm with near ML performance [C]∥2015 IEEE International Conference on Communication Software and Networks. Piscataway, NJ, USA: IEEE, 2015: 196-200.

JITSUMATSU Y, KHAN M T A, TOHRU K. Gaussian chip waveform together with Markovian spreading codes improve BER performance in chip-asynchronous CDMA systems [J]. IEEE Globecom, 2006(4): 1-5.

COTTATELLUCCI L, MULLER R R, DEBBAH M. Asynchronous CDMA systems with random spreading: part I Fundamental limits [J]. IEEE Transactions on Information Theory, 2010, 56(4): 1477-1497.

CHIEN F T, HWANG C H, KUO C C J. Performance analysis of multicarrier CDMA systems with frequency offsets and random spreading under optimum combining [J]. IEEE Transactions on Wireless Communications, 2006, 54(4): 737-747.

NGUYEN H H, SHWEDYK E. Double chip waveforms for asynchronous DS-CDMA systems with random signature sequences [J]. IEE Proceedings: Communications, 2004, 151(4): 364-374.

LANDOLSI M A, STARK W E. DS-CDMA chip waveform design for minimal interference under bandwidth, phase, and envelope constraints [J]. IEEE Transactions on Wireless Communications, 1999, 47(11): 1737-1746.

NGUYEN H H. An improved design of chip waveforms for band-limited DS-CDMA systems [J]. IEEE Transactions on Vehicular Technology, 2004, 53(5): 1379-1386.

赵龙海,沙学军.多输入多输出单载波频分多址系统的鲁棒波束赋形算法.2017,51(8):53-58.[doi:10.7652/xjtuxb 201708009]

刘逵,刘三阳.采用主成分策略的传感器网络路由评估算法.2017,51(6):47-53.[doi:10.7652/xjtuxb201706008]

张晖,任文辉,娄亚翔.业务迁移场景下利用信誉值的拓扑构造激励算法.2017,51(6):66-72.[doi:10.7652/xjtuxb201706 011]

卢虎,廉保旺,闫浩.新型卫星导航复用调制信号的单路分离方法.2016,50(12):32-37.[doi:10.7652/xjtuxb201612006]

刘文娟,冯大政,袁明冬.利用参数结构的快速非酉联合对角化算法.2016,50(12):106-113.[doi:10.7652/xjtuxb201612 017]

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Discrete Particle Swarm Optimization for Vertical Bell-Labs Layered Space-Time System Detection

Optimal Power Allocation for Cooperative Systems Utilizing Quadrature Modulation

A Lattice Reduction-Based Cooperative Multiple Access Scheme

Knowledge Graph Representation Learning Driven by Semantic Discrimination and Subgraph Integration

A Structure-Semantics-Residual Collaborative Image Compression Framework：Towards Privacy Protection and High-Fidelity Reconstruction

Related Author

董伟 1

李建东 1

朱明明 2

陈亮 1

李靖

葛建华

王勇

祁丽娟

Related Institution

State Key Laboratory of Integrated Service Networks, Xidian University

School of Electronic Information Engineering, Tianjin University

⁰