基于负载量预测的卫星物联网随机接入研究

doi:10.11959/j.issn.2096-8930.2023040

Abstract

Abstract:

In the process of the vigorous development of satellite internet of things, random access protocol is regarded as the most suitable communication protocol due to its characteristics of low signaling overhead, high transmission efficiency, high flexibility and easy implementation.However, due to drastic load changes, conventional random access mode only has advantages in the specific load range.Dynamic allocation of random access resources requires the accurate number of time slot access applications.In view of the above problems, a random access adaptive scheme was proposed, which could adaptively selected the appropriate random access mode according to the future load size, so as to improved the system throughput.The load size could be obtained through the proposed load estimation and prediction scheme.When narrowband interference exists in the transmission environment, the spread-spectrum communication means was introduced to made the adaptive scheme of random access run successfully.Moreover, the proposed adaptive scheme also improved the system throughput.

Key words: satellite internet of things, random access, load prediction, load estimation, spread spectrum communication

CLC Number:

TN927

Xiwen MAO, Haitao WANG, Gengxin ZHANG. Research on Random Access of Satellite Internet of Things Based on Load Prediction[J]. Space-Integrated-Ground Information Networks, 2023, 4(4): 27-37.

Figures/Tables 19

References 28

[1]	沈俊, 高卫斌, 张更新 . 低轨卫星物联网的发展背景、业务特点和技术挑战[J]. 电信科学, 2019,35(5): 113-119.
	SHEN J , GAO W B , ZHANG G X . Developing background,service characteristics and challenges of LEO IoT[J]. Telecommunications Science, 2019,35(5): 113-119.
[2]	靳聪, 和欣, 谢继东 ,等. 低轨卫星物联网体系架构分析[J]. 计算机工程与应用, 2019,55(14): 98-104.
	JIN C , HE X , XIE J D ,et al. Analysis of LEO satellite Internet of things architecture[J]. Computer Engineering and Applications, 2019,55(14): 98-104.
[3]	魏肖, 成俊峰, 王静贤 ,等. 基于 5G 技术的低轨卫星物联网技术[J]. 移动通信, 2020,44(3): 14-21.
	WEI X , CHENG J F , WANG J X ,et al. Research on low-orbit satellite IoT based on 5G technology[J]. Mobile Communications, 2020,44(3): 14-21.
[4]	程一凡, 曲至诚, 张更新 . 低轨卫星星座物联网业务量建模[J]. 电子与信息学报, 2021,43(4): 1050-1056.
	CHENG Y F , QU Z C , ZHANG G X . Traffic modeling for low earth orbit satellite constellation Internet of Things[J]. Journal of Electronics ＆ Information Technology, 2021,43(4): 1050-1056.
[5]	丁晓进, 洪涛, 刘锐 ,等. 低轨卫星物联网体系架构及关键技术研究[J]. 天地一体化信息网络, 2021,2(4): 10-18.
	DING X J , HONG T , LIU R ,et al. Research on architecture of LEO satellite Internet of things and key technologies[J]. Space-Integrated-Ground Information Networks, 2021,2(4): 10-18.
[6]	张更新, 揭晓, 曲至诚 . 低轨卫星物联网的发展现状及面临的挑战[J]. 物联网学报, 2017,1(3): 6-9.
	ZHANG G X , JIE X , QU Z C . Development status and challenges of LEO IoT[J]. Chinese Journal on Internet of Things, 2017,1(3): 6-9.
[7]	QU Z C , ZHANG G X , CAOH T ,et al. LEO satellite constellation for Internet of things[J]. IEEE Access, 2017,5: 18391-18401.
[8]	邱琳, 陈舒怡, 孟维晓 . 低轨卫星物联网随机码分多址技术[J]. 无线电通信技术, 2021,47(5): 549-556.
	QIU L , CHEN S Y , MENG W X . Random code channel access technology for low-orbit satellite IoT[J]. Radio Communications Technology, 2021,47(5): 549-556.
[9]	韦芬芬, 刘晓旭, 谢继东 ,等. 低轨卫星物联网多址接入方式研究[J]. 计算机技术与发展, 2019,29(5): 116-120.
	WEI F F , LIU X X , XIE J D ,et al. Research on multiple access methods for LEO satellite IoT[J]. Computer Technology and Development, 2019,29(5): 116-120.
[10]	高倩, 张更新 . 低轨卫星物联网多址接入协议研究[J]. 通信技术, 2018,51(3): 588-592.
	GAO Q , ZHANG G X . Research on multiple access protocol applied to LEO satellite constellation for IoTs[J]. Communications Technology, 2018,51(3): 588-592.
[11]	朱骏, 廖晓谈, 张秀梅 . 关于低轨卫星物联网多址接入应用研究[J]. 无线互联科技, 2019,16(3): 14-15.
	ZHU J , LIAO X T , ZHANG X M . Research on the application of low-orbit satellite IoT multiple access[J]. Wireless Internet Technology, 2019,16(3): 14-15.
[12]	惠明明, 翟盛华, 王伟 . 卫星物联网中随机接入技术研究进展与展望[J]. 空间电子技术, 2022,19(5): 13-28.
	HUI M M , ZHAI S H , WANG W . Research progress and prospect of random access technology in satellite Internet of things[J]. Space Electronic Technology, 2022,19(5): 13-28.
[13]	ABRAMSON N . THE ALOHA SYSTEM:another alternative for computer communications[C]// Proceedings of the November 17-19,1970,fall joint computer conference. New York:ACM, 1970: 281-285.
[14]	王申涛, 杨浩, 周熙 . 几种随机接入协议的仿真性能比较分析[J]. 计算机与现代化, 2006(10): 101-104.
	WANG S T , YANG H , ZHOU X . Comparison and analysis of a few of random access protocols' simulation performance[J]. Computer and Modernization, 2006(10): 101-104.
[15]	ROBERTSL G . ALOHA packet system with and without slots and capture[J]. ACM SIGCOMM Computer Communication Review, 1975,5(2): 28-42.
[16]	CHOUDHURY G , RAPPAPORT S . Diversity ALOHA - a random access scheme for satellite communications[J]. IEEE Transactions on Communications, 1983,31(3): 450-457.
[17]	周朝荣, 李乐民, 张翼德 ,等. 采用串行干扰消除的 DS-CDMA系统中速率分配与译码顺序调整的联合优化[J]. 电子与信息学报, 2009,31(6): 1400-1404.
	ZHOU Z R , LI L M , ZHANG Y D ,et al. Joint optimization of rate allocation and decoding order adjustment in DS-CDMA systems with successive interference cancellation[J]. Journal of Electronics＆ Information Technology, 2009,31(6): 1400-1404.
[18]	CASINI E , DE GAUDENZI R , DELRIO HERRERO O . Contention resolution diversity slotted ALOHA (CRDSA):an enhanced random access scheme for satellite access packet networks[J]. IEEE Transactions on Wireless Communications, 2007,6(4): 1408-1419.
[19]	付晓玲, 关馨, 苏雁泳 . 卫星物联网接入协议性能分析[J]. 无线电通信技术, 2019,45(6): 622-626.
	FU X L , GUAN X , SU Y Y . Performance analysis of satellite IoT random access protocol[J]. Radio Communications Technology, 2019,45(6): 622-626.
[20]	田日才, 迟永钢 . 扩频通信[M]. 2 版.北京: 清华大学出版社, 2014.
	TIAN R C , CHI Y G . Spread spectrum communication[M]. Version 2. Beijing: Tsinghua University Press, 2014.
[21]	朱振宇, 朱晓荣, 蔡艳 ,等. 基于时隙 ALOHA 与自适应接入类禁止混合的大规模终端接入算法[J]. 物联网学报, 2021,5(1): 90-98.
	ZHU Z Y , ZHU X R , CAI Y ,et al. Large-scale terminal access algorithm based on slot ALOHA and adaptive access class barring[J]. Chinese Journal on Internet of Things, 2021,5(1): 90-98.
[22]	茆习文, 王海涛, 张更新 . 卫星物联网负载量估计及预测[J/OL]. 光通信研究, 2023.
	MAO X W , WANG H T , ZHANG G X . Load estimation and prediction of satellite internet of things[J/OL]. Optical Communication Research, 2023.
[23]	梁昌勇, 马银超, 陈荣 ,等. 基于 SVR-ARMA 组合模型的日旅游需求预测[J]. 管理工程学报, 2015,29(1): 122-127.
	LIANG C Y , MA Y C , CHEN R ,et al. The daily forecasting tourism demand based on SVR-ARMA combination model[J]. Journal of Industrial Engineering and Engineering Management, 2015,29(1): 122-127.
[24]	杨高飞, 徐睿, 秦鸣 ,等. 基于 ARMA 和卡尔曼滤波的短时交通预测[J]. 郑州大学学报(工学版), 2017,38(2): 36-40.
	YANG G F , XU R , QIN M ,et al. Short-term traffic volume forecasting based on ARMA and Kalman filter[J]. Journal of Zhengzhou University (Engineering Science), 2017,38(2): 36-40.
[25]	HOCHREITER S , SCHMIDHUBER J . Long short-term memory[J]. Neural Computation, 1997,9(8): 1735-1780.
[26]	魏迪, 曾海彬, 洪锋 ,等. 基于LSTM网络和特征融合的通信干扰识别[J]. 电讯技术, 2022,62(4): 450-456.
	WEI D , ZENG H B , HONG F ,et al. Communication jamming signals recognition based on LSTM network and feature fusion[J]. Telecommunication Engineering, 2022,62(4): 450-456.
[27]	GONG M G , LIU J , QIN A K,etal . Evolving deep neural networks via cooperative coevolution with backpropagation[J]. IEEE Transactions on Neural Networks and Learning Systems, 2021,32(1): 420-434.
[28]	茆习文, 王海涛, 张更新 . 一种卫星物联网随机接入自适应方法、装置及存储介质:CN114867128A[P].2022-08-05.
	MAO X W , WANG H T , ZHANG G X . Satellite Internet of things random access adaptive method and device,and storage medium:CN114867128A[P].2022-08-05.

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总服务时隙/个	终端数量/个	业务到达模型	概率分布函数	可用前导码个数	退避算法	退避最大窗口值	前导码选择方式
17 000	70 000	服从Beta分布	(60t²(T-t)³)/T ⁶	32个	二进制退避	32个时隙	随机选择

第一层神经元个数/个	第二层神经元个数/个	最大迭代次数/次	初始学习率	优化器	损失函数	神经元损失概率
128	64	1 000	0.002	Adam	MSE	0.2

采样频率/MHz	信噪比/dB	成型滤波器	滚降系数
6.4	8	根升余弦滤波器	0.35

码元长度	信噪比/dB	噪声类型	调制方式	扩频码类型	扩频位数
10 000	8	高斯白噪声	BPSK	Walsh码	[1,2,4,8,16,32,64,128]

Research on Random Access of Satellite Internet of Things Based on Load Prediction

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