[1] Fan Xiangning, Ni Jianqiang, Bi Guangguo,. Multi-access performance of DS UWB systemunder indoor dense multi-path channel [J]. Journal of Southeast University (English Edition), 2005, 21 (4): 393-397. [doi:10.3969/j.issn.1003-7985.2005.04.004]

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Multi-access performance of DS UWB systemunder indoor dense multi-path channel()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 4

Page:

393-397

Research Field:

Information and Communication Engineering

Publishing date:

2005-12-30

Info

Title:

Multi-access performance of DS UWB systemunder indoor dense multi-path channel

Author(s):

Fan Xiangning;  Ni Jianqiang;  Bi Guangguo

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

ultra wideband;  multi-access;  multi-path;  Gold code;  direct sequence;  Rake

PACS:

TN92

DOI:

10.3969/j.issn.1003-7985.2005.04.004

Abstract:

The performance of multi-user code to direct spreading bi-phase shift keying(DS-BPSK)direct impulse ultra wideband(UWB)systems under indoor multi-user and multi-path environment is analyzed and simulated.The system output signals with Rake receiver are derived, then a simple and practical code selection scheme is given; i.e., with a large occupation to empty ratio of the repeating pulses, directly choosing those random or pseudo-random user codes with enough length and good co-relative orthogonal features will make the performance of DS-BPSK approximate the optimum and, so there is no need to carefully design the code or its type.The system multi-access performances are simulated using Gold sequence and PN codes as multi-user codes under CM1-CM4 multi-path channels.Simulation results prove that the proposed scheme is feasible.

References:

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Memo

Memo:

Biography: Fan Xiangning(1964—), male, doctor, associate professor, xnfan@seu.edu.cn.

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