基于多功率电平-多前导的mMTC免授权随机接入方案

doi:10.12305/j.issn.1001-506X.2023.08.36

系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (8): 2606-2614.doi: 10.12305/j.issn.1001-506X.2023.08.36

基于多功率电平-多前导的mMTC免授权随机接入方案

王靖文¹^,², 张晶¹^,²^,³^,*, 梁楚龙⁴

1. 南京邮电大学通信与信息工程学院, 江苏南京 210003
2. 南京邮电大学江苏省无线通信重点实验室, 江苏南京 210003
3. 南京邮电大学物联网研究院, 江苏南京 210003
4. 中兴通讯股份有限公司, 广东深圳 518057

收稿日期:2022-06-27 出版日期:2023-07-25 发布日期:2023-08-03
通讯作者: 张晶
作者简介:王靖文(1992—)，女，硕士研究生，主要研究方向为无线通信
张晶(1980—)，女，副教授，博士，主要研究方向为无线通信、无线资源管理、物联网
梁楚龙(1987—)，男，高级工程师，博士，主要研究方向为无线通信、算法设计
基金资助:
国家重点研发计划课题(2020YFB1807202);国家自然科学基金重点项目(92067201);江苏省重点研发计划项目(BE2020084-1);江苏省自然科学基金(BK20191378)

Grant-free random access scheme for mMTC based on multi-power level and multi-preamble

Jingwen WANG¹^,², Jing ZHANG¹^,²^,³^,*, Chulong LIANG⁴

1. College of Telecommunication & Information Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
2. Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
3. Institute of Internet of Things, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
4. ZTE Corporation, Shenzhen 518057, China

Received:2022-06-27 Online:2023-07-25 Published:2023-08-03
Contact: Jing ZHANG

摘要/Abstract

摘要：

传统的免授权随机接入方案存在严重的前导碰撞，这大大限制了终端的接入性能。为了降低前导碰撞及提高免授权随机接入概率，提出一种基于多输入多输出(multiple input multiple output，MIMO)和多功率电平-多时隙联合的免授权随机接入方案。在该方案中，活跃用户从前导池中随机选择多个前导序列构成组合前导，并根据自身位置选择一个发送功率电平，将组合前导和信号以该功率电平依次发送至基站；基站采用顺序干扰抵消技术分离不同功率电平的信号，通过前导检测识别竞争用户并估计随机接入冲突。仿真结果表明，相比单一非正交多址(non-orthogonal multiple access，NOMA)方案和单一多前导方案，所提方案能够有效提高用户的接入成功概率，对大规模随机接入场景具有更好的适应性。

关键词: 随机接入, 多功率电平, 组合前导, 顺序干扰抵消

Abstract:

Traditional grant-free random access schme has a serious problem on preamble collision, which greatly limits the random access performance of the end side. In order to reduce the preamble collision and improve the probability of grant-free random access, a multi-power level and multi-slot joint grant-free random access scheme based on multiple input multiple output(MIMO) is proposed. In the proposed scheme, the active user randomly selects multiple preamble sequences from the preamble pool to form a combined preamble and selects a sending power level according to its own position to transmit the combined preamble and signal to the base station in sequence according corresponding level. The base station uses sequential interference cancellation(SIC) technology to separate signal of different power levels, and then identifies competing users and estimates random access conflicts through preamble detection. The simulation results show that compared with the single non-orthogonal multiple access(NOMA) scheme and the single multi-preamble scheme, the proposed scheme can effectively improve the access success probability of users, and has a better adaptability to massive random access scenarios.

Key words: random access, multi-power level, combined preamble, sequential interference cancellation(SIC)

中图分类号:

TN929.53

王靖文, 张晶, 梁楚龙. 基于多功率电平-多前导的mMTC免授权随机接入方案[J]. 系统工程与电子技术, 2023, 45(8): 2606-2614.

Jingwen WANG, Jing ZHANG, Chulong LIANG. Grant-free random access scheme for mMTC based on multi-power level and multi-preamble[J]. Systems Engineering and Electronics, 2023, 45(8): 2606-2614.

图/表 8

图1

图2

图3

表1

图4

图5

图6

图7

参考文献 31

1	BOCKELMANN C , PRATAS N , NIKOPOUR H , et al. Massive machine-type communications in 5G: physical and MAC-layer solutions[J]. IEEE Communications Magazine, 2016, 54 (9): 59- 65. doi: 10.1109/MCOM.2016.7565189
2	MEHMETI F, PORTA T F L. Modeling and analysis of mMTC traffic in 5G base stations[C]//Proc. of the IEEE 19th Annual Consumer Communications & Networking Conference, 2022: 652-660.
3	MOON S, LEE J W. Performance study of repetition-based grant-free schemes in the mMTC scenario[C]//Proc. of the 34th International Technical Conference on Circuits/Systems, Computers and Communications, 2019.
4	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. doi: 10.1109/MCOM.2015.7263349
5	POKHREL S R , DING J , PARK J , et al. Towards enabling critical mMTC: a review of URLLC within mMTC[J]. IEEE Access, 2020, 8, 131796- 131813. doi: 10.1109/ACCESS.2020.3010271
6	TONG L L , ZHANG C , HUANG R H . Research on intelligent logic design and application of campus MMTC scene based on 5G slicing technology[J]. China Communications, 2021, 18 (8): 307- 315. doi: 10.23919/JCC.2021.08.022
7	肖玉可. 大规模机器通信中随机接入技术的研究[D]. 北京: 北京邮电大学, 2020.
	XIAO Y K. Research on random access in massive machine type of communication[D]. Beijing: Beijing University of Posts and Telecommunications, 2020.
8	REDDY Y S , DUBEY A , KUMAR A , et al. A successive interference cancellation based random access channel mechanism for machine-to-machine communications in cellular internet-of-things[J]. IEEE Access, 2021, 9, 8367- 8380. doi: 10.1109/ACCESS.2021.3049439
9	OH C Y , HWANG D , LEE T J . Joint access control and resource allocation for concurrent and massive access of M2M devices[J]. IEEE Trans.on Wireless Communications, 2015, 14 (8): 4182- 4192. doi: 10.1109/TWC.2015.2417873
10	MORVARI F , GHASEMI A . Two-stage resource allocation for random access M2M communications in LTE network[J]. IEEE Communications Letters, 2016, 20 (5): 982- 985. doi: 10.1109/LCOMM.2016.2539159
11	LIU W, CUI Y H, DING L H, et al. Joint optimization of preamble selection and access barring for MTC with correlated device activities[C]//Proc. of the IEEE International Conference on Communications Workshops, 2021.
12	ZHAN W , SUN X H , WANG X J , et al. Performance optimization for massive random access of mMTC in cellular networks with preamble retransmission limit[J]. IEEE Trans.on Vehi-cular Technology, 2021, 70 (9): 8854- 8867. doi: 10.1109/TVT.2021.3096259
13	JIE D , QU D M , JIANG H , et al. Success probability of grant-free random access with massive MIMO[J]. IEEE Internet of Things Journal, 2019, 6 (1): 506- 516. doi: 10.1109/JIOT.2018.2869003
14	DING J , QU D M , CHOI J H , et al. Analysis of non-orthogonal sequences for grant-free RA with massive MIMO[J]. IEEE Trans.on Communications, 2019, 68 (1): 150- 160.
15	BJRNSON E , CARVALHO E D , SRENSEN J H , et al. A random access protocol for pilot allocation in crowded massive MIMO systems[J]. IEEE Trans.on Wireless Communications, 2017, 16 (4): 2220- 2234. doi: 10.1109/TWC.2017.2660489
16	DING J , CHOI J H , et al. Comparison of preamble structures for grant-free random access in massive MIMO systems[J]. IEEE Wireless Communication Letters, 2020, 9 (2): 166- 170. doi: 10.1109/LWC.2019.2947036
17	JIANG H , QU D M , DING J , et al. Multiple preambles for high success rate of grant-free random access with massive MIMO[J]. IEEE Trans.on Wireless Communications, 2019, 18 (99): 4779- 4789.
18	CHOI J . An approach to preamble collision reduction in grant-free random access with massive MIMO[J]. IEEE Trans.on Wireless Communications, 2021, 20 (3): 1557- 1566. doi: 10.1109/TWC.2020.3034308
19	DING J , CHOI J . Preamble-data superposition random access in massive MIMO Systems[J]. IEEE Wireless Communication Letters, 2020, 9 (6): 906- 910. doi: 10.1109/LWC.2020.2974724
20	LIANG Y N , LI X , ZHANG J Y , et al. Non-orthogonal random access for 5G networks[J]. IEEE Trans.on Wireless Communications, 2017, 16 (7): 4817- 4831. doi: 10.1109/TWC.2017.2703168
21	DING Z G , LIU Y W , CHOI J , et al. Application of non-orthogonal multiple access in LTE and 5G networks[J]. IEEE Communications Magazine, 2017, 55 (2): 185- 191. doi: 10.1109/MCOM.2017.1500657CM
22	ISLAM S M R , AVAZOV N , DOBRE O A , et al. Power-domain non-orthogonal multiple access(NOMA) in 5G systems: potentials and challenges[J]. IEEE Communications Surveys & Tutorials, 2016, 19 (2): 721- 742.
23	DAI L J , WANG B C , DING Z G , et al. A survey of non-orthogonal multiple access for 5G[J]. IEEE Communications Surveys & Tutorials, 2018, 20 (3): 2294- 2323.
24	ABBAS R , SHIRVANIMOGHADDAM M , LI Y , et al. A novel analytical framework for massive grant-free NOMA[J]. IEEE Trans.on Communications, 2019, 67 (3): 2436- 2449. doi: 10.1109/TCOMM.2018.2881120
25	ZHANG J Z , TAO X F , WU H C , et al. Deep reinforcement learning for throughput improvement of uplink grant-free NOMA system[J]. IEEE Internet of Things Journal, 2020, 7 (7): 6369- 6379. doi: 10.1109/JIOT.2020.2972274
26	CHOI J . NOMA based random access with multichannel ALOHA[J]. IEEE Journal on Selected Areas in Communications, 2017, 35 (12): 2736- 2743. doi: 10.1109/JSAC.2017.2766778
27	JIANG H, CUI Q M, GU Y, et al. Distributed layered grant-free non-orthogonal multiple access for massive MTC[C]//Proc. of the IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2018.
28	陈德建. 非正交多址接入中干扰消除技术的研究[D]. 重庆: 重庆邮电大学, 2019.
	CHEN D J. Research on interference cancellation for non-orthogonal multiple access[D]. Chongqing: Chongqing University of Posts and Telecommunications, 2019.
29	JIAO J , XU L , WU S H , et al. MSPA: multislot pilot allocation random access protocol for mMTC-enabled IoT system[J]. IEEE Internet of Things Journal, 2021, 8 (24): 17403- 17416. doi: 10.1109/JIOT.2021.3081535
30	WU L , TANG X R , ZHANG Z C , et al. Enhanced power choice barring scheme for massive MTCs with grant-free NOMA[J]. China Communications, 2021, 18 (10): 135- 147. doi: 10.23919/JCC.2021.10.009
31	MAI L F , ZHANG Q . System throughput maximization of uplink NOMA random access systems[J]. IEEE Communications Letters, 2021, 25 (11): 3654- 3658. doi: 10.1109/LCOMM.2021.3107417

变量名称(符号)	变量取值
蜂窝小区覆盖半径R/m	100
基站天线数量M	128
用户数量N	[0~100]
前导序列数量K	8
前导序列长度J	8
前导子时隙数量T	[1~3]
功率电平级数L	[1~9]
上行接收灵敏度$\bar{\varGamma} / \mathrm{dB} $	2
路径损失因子α	4

[1]	赵志勇, 胡德雄, 毛忠阳, 刘锡国. 基于信道状态判决的随机接入协议退避算法[J]. 系统工程与电子技术, 2023, 45(6): 1866-1871.
[2]	黄存刚, 马文平, 罗炼飞. 超高速场景下随机接入前导序列的检测[J]. 系统工程与电子技术, 2018, 40(9): 2100-2105.

基于多功率电平-多前导的mMTC免授权随机接入方案

Grant-free random access scheme for mMTC based on multi-power level and multi-preamble

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 31

相关文章 2

编辑推荐

Metrics

本文评价