Impact of overload factor on uplink SCMA system

Hongyang ZHANG; Changliang ZHENG; Yu LU; Huaping LIU

doi:10.11959/j.issn.1000-0801.2018115

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Impact of overload factor on uplink SCMA system

research and development | 更新时间：2024-06-05

- Impact of overload factor on uplink SCMA system
- Telecommunications Science Vol. 34, Issue 6, Pages: 64-71(2018)
- 作者机构：
- 作者简介：
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- DOI：10.11959/j.issn.1000-0801.2018115
  CLC： TN929.5
- Published Online：2018-06，
  
  Published：20 June 2018
- 稿件说明：
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Hongyang ZHANG, Changliang ZHENG, Yu LU, et al. Impact of overload factor on uplink SCMA system[J]. Telecommunications science, 2018, 34(6): 64-71.
DOI：

Hongyang ZHANG, Changliang ZHENG, Yu LU, et al. Impact of overload factor on uplink SCMA system[J]. Telecommunications science, 2018, 34(6): 64-71. DOI： 10.11959/j.issn.1000-0801.2018115.

摘要

稀疏码多址接入（sparse code multiple access，SCMA）以其优异性能成为5G多址接入技术的热门候选，而海量接入是 5G 所面临的主要挑战之一，SCMA 自然要承受过载传输的考验。针对这一问题，探究了上行SCMA系统在不同过载传输场景中的性能表现。首先，从误码率性能与检测复杂度两个方面，分析系统过载率对系统检测译码的影响；其次，通过建立系统过载率与系统平均和速率的关系模型，分析系统过载率对系统传输速率的影响；最后，通过实验仿真验证分析的合理性与准确性。

Abstract

Sparse code multiple access (SCMA) is regarded as a promising multiple access technology for 5G because of its excellent performance.One of the major challenges that 5G networks are facing is the massive connectivity in terms of both data volume and the number of devices

thus SCMA must be capable of coping with transmission overload.Analyzing the performance of the uplink SCMA system in overloading scenarios was focused on.At first

the influence of the overloading factor on the detection and decoding complexities and error performances of the uplink SCMA system were analyzed.Then

by establishing the relationship between the overloading factor and the average sum-rate

the impact of the overloading factor on the transmission rate of the uplink SCMA system was analyzed.Extensive numerical results are provided to verify the accuracy and insights derivable from the analytical results.

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references

IMT-2020(5G)推进组 . 5G 概念白皮书 [R ] . 2015 .

林金桐 , 许晓东 . 第五代移动互联网 [J ] . 电信科学 , 2015 , 31 ( 5 ): 7 - 14 .

LIN J T , XU X D . The 5th generation of mobile internet [J ] . Telecommunications Science , 2015 , 31 ( 5 ): 7 - 14 .

王庆扬 , 谢沛荣 , 熊尚坤 , 等 . 5G 关键技术与标准综述 [J ] . 电信科学 , 2017 , 33 ( 11 ): 112 - 122 .

WANG Q Y , XIE P R , XIONG S K , et al . Key technology and standardization progress for 5G [J ] . Telecommunications Science , 2017 , 33 ( 11 ): 112 - 122 .

DAI L L , WANG B C , YUAN Y F , et al . Non-orthogonal multiple access for 5G:solutions,challenges,opportunities,and future research trends [J ] . IEEE Communications Magazine , 2015 , 53 ( 9 ): 74 - 81 .

ANDREWS J G , BUZZI S , CHOI W , et al . What will 5G be? [J ] . IEEE Journal on Selected Areas in Communications , 2014 , 32 ( 6 ): 1065 - 1082 .

董振江 , 董昊 , 韦薇 , 等 . 5G 环境下的新业务应用及发展趋势 [J ] . 电信科学 , 2016 , 32 ( 6 ): 58 - 64 .

DONG Z J , DONG H , WEI W , et al . New services and development trend in 5G environment [J ] . Telecommunications Science , 2016 , 32 ( 6 ): 58 - 64 .

NIKOPOUR H , BALIGH H . Sparse code multiple access [C ] // Personal Indoor and Mobile Radio Communications (PIMRC),September 9-11,2013,London,UK . Piscataway:IEEE Press , 2013 : 332 - 336 .

HOSHYAR R , WATHAN F P , TAFAZOLLI R . Novel low-density signature for synchronous CDMA systems over AWGN channel [J ] . IEEE Transactions on Signal Processing , 2008 , 56 ( 4 ): 1616 - 1626 .

ZHANG S Q , XU X Q , LU L , et al . Sparse code multiple access:an energy efficient uplink approach for 5G wireless systems [C ] // IEEE Global Telecommunications Conference Workshops,December 8-12,2014,Austin,TX,USA . Piscataway:IEEE Press , 2014 : 4782 - 4787 .

DONG Y T , QIU Y L , LIANG X W . Energy efficiency maximization for uplink SCMA system using CCPSO [C ] // IEEE Global Telecommunications Conference Workshops,December 4-8,2016,Washington,DC,USA . Piscataway:IEEE Press , 2016 : 1 - 5 .

CHENG M , WU Y , CHEN Y . Capacity analysis for non-orthogonal overloading transmissions under constellation constraints [C ] // Wireless Communications ＆ Signal Processing (WCSP),October 15-17,2015,Nanjing,China . Piscataway:IEEE Press , 2015 : 1 - 5 .

YANG H L , FANG X M , LIU Y P , et al . Impact of overloading on link-level performance for sparse code multiple access [C ] // IEEE Wireless and Optical Communication Conference (WOCC),May 21-23,2016,Chengdu,China . Piscataway:IEEE Press , 2016 : 1 - 4 .

BAO J C , MA Z , XIAO M , et al . Error performance of sparse code multiple access networks with joint ML detection [C ] // IEEE Vehicular Technology Conference (VTC),May 15-18,2016,Nanjing,China . Piscataway:IEEE Press , 2016 : 1 - 5 .

曹志刚 , 钱亚生 . 现代通信原理 [M ] . 北京 : 清华大学出版社 , 1992 : 9 - 11 .

CAO Z G , QIAN Y S . Modern communication principle [M ] . Beijing : Tsinghua University PressPress , 1992 : 9 - 11 .

TAHERZADEH M , NIKOPOUR H , BAYESTEH A , et al . SCMA codebook design [C ] // 2014 IEEE 80th Vehicular Technology Conference (VTC),September 14-17,2014,Vancouver,Canada . Piscataway:IEEE Press , 2014 : 1 - 5 .

LOELIGER H . An introduction to factor graphs [J ] . IEEE Signal Processing Magazine , 2004 , 21 ( 1 ): 28 - 41 .

BAYESTEH A , NIKOPOUR H , TAHERZADEH M , et al . Low complexity techniques for SCMA detection [C ] // 2015 IEEE GLOBECOM Workshops,December 6-10,San Diego,CA,USA . Piscataway:IEEE Press , 2015 : 1 - 6 .

KSCHISCHANG F R , FREY B J , LOELIGER H . Factor graphs and the sum-product algorithm [J ] . IEEE Transactions on Informatroro Theory , 2001 , 47 ( 2 ): 498 - 519 .

AL-IMARI M , IMRAN M , TAFAZOLLI R , et al . Subcarrier and power allocation for LDS-OFDM system [C ] // IEEE Vehicular Technology Conference (VTC),May 15-18,2011,Yokohama,Japan . Piscataway:IEEE Press , 2011 : 1 - 5 .

杨正 . 5G 移动网络非正交多址接入及相关技术研究 [D ] . 西安:西南交通大学 , 2016 .

YANG Z . Investigation on non-orthogonal multiple access and related technology for 5th generation mobile networks [D ] . Xi’an:Southwest Jiaotong University , 2016 .

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