Reliability-Latency Performance of Frameless ALOHA With and Without Feedback

被引：11

作者：

Lazaro, Francisco ^{[1
]}

Stefanovic, Cedomir ^{[2
]}

Popovski, Petar ^{[2
]}

机构：

[1] German Aerosp Ctr, DLR, Inst Commun & Nav, D-82234 Wessling, Germany

[2] Aalborg Univ, Dept Elect Syst, DK-9220 Aalborg, Denmark

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2020年 / 68卷 / 10期

基金：

欧洲研究理事会;

关键词：

Reliability; Error analysis; Silicon carbide; Receivers; Computational complexity; Decoding; Access protocols; iterative decoding; dynamic programming; interference cancellation; Machine-to-machine communications; RANDOM-ACCESS; FINITE-LENGTH;

D O I：

10.1109/TCOMM.2020.3007793

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a finite length analysis of multi-slot type frameless ALOHA based on a dynamic programming approach. The analysis is exact, but its evaluation is only feasible for moderate number of users due to the computational complexity. The analysis is then extended to derive continuous approximations of its key parameters, which, apart from providing an insight into the decoding process, make it possible to estimate the packet error rate with very low computational complexity. Finally, a feedback scheme is presented in which the slot access scheme is dynamically adapted according to the approximate analysis in order to minimize the packet error rate. The results indicate that the introduction of feedback can substantially improve the performance of frameless ALOHA.

引用

页码：6302 / 6316

页数：15

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