A hint-based random access protocol for mMTC in 5G mobile network

Yining Xu, Yi Ren, Ching-Ju Lin, Yu-Chee Tseng

研究成果: Conference contribution同行評審

摘要

With the increasing popularity of machine-type communication (MTC) devices, several new challenges are encountered by the legacy long term evolution (LTE) system. One critical issue is that a massive number of MTC devices trying to conduct random access procedures may cause significant collisions and long delays. In this work, we present a new random access mechanism by splitting the contention-based preambles in LTE into two logically disjoint parts, one for the user equipment (UE) being paged and the other for the UEs not being paged. Since the IDs of paged UEs are known by the base station, a novel hash-based random access, which we call hint, is possible. The main idea is to pre-allocate preambles to paged UEs in a contention-free manner and confines non-paged UEs to contend in a separate region. We further build a mathematical model to find the optimal ratio of pre-allocated preambles. Extensive simulations are conducted to validate our results.

原文English
主出版物標題Proceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018
發行者Institute of Electrical and Electronics Engineers Inc.
頁面388-396
頁數9
ISBN(電子)9781538655801
DOIs
出版狀態Published - 9 十月 2018
事件15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018 - Chengdu, China
持續時間: 9 十月 201812 十月 2018

出版系列

名字Proceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018

Conference

Conference15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018
國家China
城市Chengdu
期間9/10/1812/10/18

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