Cell Cooperation Based Channel Access Mechanism for LAA and WiFi Coexistence

Peilin Liu, Mao Yang, Zhongjiang Yan, Bo Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In 2014, the 3rd Generation Partnership Project (3GPP) proposed the ‘‘Licensed-Assisted Access using LTE’’ (LAA) research project, with the intention to further improve LTE network capacity by deploying LTE system in 5GHz unlicensed frequency band. But deploying LAA in unlicensed band will inevitably affect other existing wireless systems such as WiFi and increase the risk of data collision. Therefore, the research of coexistence between LAA and WiFi is of great significance to facilitate the fair sharing and efficient utilization of unlicensed spectrum sources. However, the existing studies consider the relationship between LAA and WiFi in the coexistence scenario from the perspective of contention. In this paper, we proposed a cell cooperation based channel access mechanism. The basic idea of the proposed scheme is let an LAA cell and a WiFi cell establish a pair of cooperative relationship. Once LAA node accesses the channel, it will notify its cooperated pair WiFi node to share the transmission opportunity, and vice versa. After the transmission of the LAA node, the WiFi node can access the channel without performing backoff again. Simulation results manifest that the proposed cell cooperation based channel access mechanism improves the communication performances of both LAA and WiFi as well as the spectrum efficiency in the coexistence scenarios with high channel resources demand.

源语言英语
主期刊名Smart Grid and Internet of Things - 4th EAI International Conference, SGIoT 2020, Proceedings
编辑Yi-Bing Lin, Der-Jiunn Deng
出版商Springer Science and Business Media Deutschland GmbH
500-515
页数16
ISBN(印刷版)9783030695132
DOI
出版状态已出版 - 2021
活动4th EAI International Conference on Smart Grid and Internet of Things, SGIoT 2020 - TaiChung, 中国台湾
期限: 5 12月 20206 12月 2020

出版系列

姓名Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
354
ISSN(印刷版)1867-8211
ISSN(电子版)1867-822X

会议

会议4th EAI International Conference on Smart Grid and Internet of Things, SGIoT 2020
国家/地区中国台湾
TaiChung
时期5/12/206/12/20

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