Optimal resource allocation for two-stage connectionless access with collision detection

被引：0
|
作者：
Jian X. [1 ]
Wang F. [1 ]
Song J. [1 ]
Fu S. [1 ]
Tan X. [1 ]
Zeng X. [1 ]
机构：
[1] College of Microelectronics and Communication Engineering, Chongqing University, Chongqing
来源：
Tongxin Xuebao/Journal on Communications | 2019年 / 40卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Connectionless access; Massive machine type communication; Optimal resource allocation; Performance limit;
D O I：
10.11959/j.issn.1000-436x.2019102
中图分类号：
学科分类号：
摘要：
Connectionless access allows massive machine type communication (mMTC) devices to transmit small packets without establishment of radio bearers, significantly reducing device power consumption and control signaling overhead. Two-stage connectionless access (TSCLA) improves throughput and resource efficiency by optimally allocating resources between scheduling request (SR) phase and data transmission phase, which can be used for bigger packets and high traffic load. Based on this, a comprehensive theoretical analysis of one kind of TSCLA with collision detection was conducted to investigate its performance limit and devise its optimal resource allocation scheme. In addition, to avoid the complexity of user number estimation, a dynamic resource allocation algorithm with feedback control was proposed. Numerical results are provided to validate the effectiveness of aforementioned theoretical results and show that comparing with the genie aided algorithm known exactly the number of users, the performance loss of the proposed algorithm is within 4%. These works together provide good references for appropriate resource dimensioning for mMTC related protocols. © 2019, Editorial Board of Journal on Communications. All right reserved.
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收藏
页码：117 / 124
页数：7
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