DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access

Gao ZHOU; Ping-zhi FAN; Li HAO

doi:10.11959/j.issn.1000-436x.2017182

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DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access

Papers | 更新时间：2024-06-05

- DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access
- Journal on Communications Vol. 38, Issue 9, Pages: 46-54(2017)
- 作者机构：
  
  西南交通大学信息科学与技术学院信息编码与传输四川省重点实验室，四川成都 610031
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61032002);The National Natural Science Foundation of China(60872014);The Innovative Intelligence Base of the Disciplines of Universities (111 Program)(111-2-14)
- DOI：10.11959/j.issn.1000-436x.2017182
  CLC： TN92
- Online First：2017-09，
  
  Published：25 September 2017
- 稿件说明：
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Gao ZHOU, Ping-zhi FAN, Li HAO. DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access[J]. Journal on Communications, 2017, 38(9): 46-54.
DOI：

Gao ZHOU, Ping-zhi FAN, Li HAO. DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access[J]. Journal on Communications, 2017, 38(9): 46-54. DOI： 10.11959/j.issn.1000-436x.2017182.

摘要

为解决多速率多载波扩频多址系统存在的信道衰落条件下性能下降以及频谱效率相对较低的问题，利用矩阵置换原理和 r 循环信道矩阵的分解特性，提出一种自适应多速率 DFT 加扰矢量多载波码分多址接入（AMR-DFT-VMC-CDMA）系统模型。在理论分析的基础上，综合考虑一定信道利用率条件下，信道误码率与发送信号帧长的相互制约关系，提出自适应参数调整算法以确保足够长的传输帧长。仿真结果表明，该系统在衰落信道下相比传统的多速率多载波扩频系统具有更好的性能，且通过调整参数，既满足了一定信道利用率下对帧长的要求，保证了频谱效率提高，又可以灵活完成多速率多用户的信息传输。

Abstract

Multipath interference would degrade the performance of multi-rate systems based on OFDM and CDMA

which spectrum efficiency was also lower relatively.To improve the performance and spectrum efficiency

a novel adaptive multi-rate DFT scrambling vector multi-carrier CDMA (AMR-DFT-VMC-CDMA) was proposed based on the theory of matrix permutation and r-cyclical matrix decomposition characteristics.Meanwhile

by theoretical analysis

the parameters of the system could be adaptively adjusted to ensure frame length long enough to break the restriction between channel bit error rate and data frame length on a certain channel utilization condition.The simulation results show that compared with the traditional multi-rate

multi-subcarrier and spreading system

the new system could achieve multi-rate and multi-user information transmission flexibly with better performance and better spectrum efficiency in fading channels.Moreover

it can satisfy the requirement of frame length under certain channel utilization by adjusting the parameters.

关键词

Keywords

references

KOZEK W , MOLISCH A F . Non-orthogonal pulse shapes for multicarrier communication in doubly dispersive channels [J ] . IEEE Journal on Selected Areas in Communications , 1998 , 16 ( 8 ): 1579 - 1589 .

SIOHAN P , SICLET C , LACAILLE N . Analysis and design of OFDM/OQAM systems based on filterbank theory [J ] . IEEE Trans on Signal Processing , 2002 , 50 ( 5 ): 1170 - 1183 .

NIKOPOUR H , BALIGH H . Sparse code multiple access [C ] // 2013 IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC) . 2003 : 332 - 336 .

LU L , CHEN Y , GUO W T , et al . Prototype for 5G new air interface technology SCMA and performance evaluation [J ] . China Communications , 2015 , 12 ( Supplement ): 38 - 48 .

LIU T T , YANG C Y . Equivalent signal-alignment-based frequency-domain equalization for MC-CDMA two-way relay systems [J ] . IEEE Transaction on Vehicular Technology , 2012 , 61 ( 1 ): 237 - 248 .

DEVELI I , AKDAGLI A . Approximate expression of bit error rate in uplink MC-CDMA systems with equal gain combining [J ] . Journal of Communications and Networks , 2013 , 15 ( 1 ): 25 - 30 .

AHMED J , HAMDI K A . Spectral efficiency of asynchronous MC-CDMA with frequency offset over correlated fading [J ] . IEEE Transaction on Vehicular Technology , 2013 , 62 ( 7 ): 3423 - 3429 .

LIU Z L , GUAN Y L , UDAYA P . New complete complementary codes for peak-to-mean power control in multi-carrier CDMA [J ] . IEEE Transaction on Communications , 2014 , 62 ( 3 ): 1105 - 1113 .

YEE N , LINNARTZ J P , FETTWEIS G . Multi-carrier CDMA in indoor wireless radio networks [C ] // IEEE PIMRC'93 . 1993 : 109 - 103 .

谢俊松 . 变长序列相关性与DS-CDMA性能分析 [J ] . 西南交通大学学报 , 2003 , 38 : 223 - 226 .

XIE J S . Correlation of variable-length spreading sequences and its application in performance evaluation of DS-CDMA [J ] . Journal of Southwest Jiaotong University , 2003 , 38 : 223 - 226 .

ZHU J K , ZHANG H B , GU Y C . Principle and performance of variable rate multi-code CDMA method [C ] // 1995 Fourth IEEE International Conference on Universal Personal Communications Record (ICUPC’95) . 1995 : 256 - 259 .

IEEE Standards Association,IEEE Standard for Air Interface for Broadband Wireless Access Systems,IEEE Std 802.16-2012 (Revision of IEEE Std 802.16-2009) [S ] . 1-2542 , 2012 .

IEEE Standards Association,IEEE Draft Standard for Air Interface for Broadband Wireless Access Systems Amendment:Enhancements to Support Machine-to-Machine Applications,IEEE P802.16p/D6 [S ] . 1-58 , 2012 .

XIA X G . Precoded and vector OFDM robust to channel spectral nulls and with reduced cyclic prefix length in single transmit antenna systems [J ] . IEEE Transaction on Communications , 2001 , 49 : 1363 - 1374 .

HAN C G , HASHIMOTO T , SUEHIRO N . Constellation-rotated vector OFDM and its performance analysis over rayleigh fading channels [J ] . IEEE Transaction on Wireless Communications , 2010 , 58 ( 3 ): 828 - 838 .

ZHOU G,FAN P Z , HAO L , SUEHIRO N . DFT scrambling vector OFDM and its performance analysis [C ] // 2011 Third International Conference on Communications and Mobile Computing (CMC) . 2011 : 381 - 384 .

YEE N , LINNARTZ J P , FETTWEIS G . Multi-carrier CDMA in Indoor wireless radio networks [C ] // IEEE PIMRC '93 . 1993 : 109 - 103 .

DASILVA V , SOUSA E S . Performance of orthogonal CDMA codes for quasi-synchronous communication systems [C ] // IEEE International Conference on Universal Personal Communications (ICUPC’93) . 1993 : 995 - 999 .

SUEHIRO N , JIN R Z . Performance of very efficient wireless frequency usage system using kronecker product with rows of DFT Matrix [C ] // 2006 IEEE Information Theory Workshop (ITW’06) . 2006 : 526 - 529 .

STALLIONGS W . Data ＆ computer communication(5th edition) [M ] . New York : Prentice Hall Inc , 2000 .

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