Non-Orthogonal Random Access (NORA) in Large Cellular Networks

被引：1
|
作者：
Liang, Yanan [1 ]
Li, Xu [1 ]
Yang, Mingqiang [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Power control; Indexes; Intercell interference; Throughput; Interference cancellation; Graphical models; Distribution functions; Non-orthogonal random access; multi-cell scenarios; stochastic geometry; BS intensity; MULTIPLE-ACCESS; NOMA;
D O I：
10.1109/LCOMM.2022.3233845
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Non-orthogonal random access (NORA) is promising to alleviate random access (RA) collision and increase RA throughout. However, the application of NORA in multi-cell scenarios is challenging due to uncertain spatial distribution of NORA UEs and complex inter-cell interference. In this letter, an analytical framework for NORA in multi-cell scenarios is proposed using stochastic geometry. In particular, the approximate spatial distributions of NORA UEs are given. The analytical model of NORA gain is derived taking into account inter-cell interference. Analytical and simulation results indicate the preferred power control scheme and demonstrate that the base station (BS) deployment scheme should be adjusted according to given wireless channel characteristics.
引用
收藏
页码：1040 / 1044
页数：5
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