Enhancing Transmission Performance in the LAA and WiFi Heterogeneous Network

Chin Ya Huang, Chen Hao Huang, Shiann Tsong Sheu, Te Wei Chiang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

2 引文 斯高帕斯(Scopus)

摘要

The Listen-Before-Talk (LBT) is the main procedure for Licensed Assisted Access (LAA) to accomplish fair and friendly coexistence with other operators or technologies operating over unlicensed spectrum. However, in LBT, the lack of coordination with the other existing systems brings challenges in sustaining performance in the coexistence of LAA and WiFi networks. Specifically, the hidden node situation (HNS) and exposed node situation (ENS) cannot be effectively handled when both LAA and WiFi attempt to access the unlicensed spectrum at the same time. Thus, transmission failure might occur and the network performance would be degraded. In order to mitigate the influences caused by HNS and ENS, based on LBT, a Give-And-Take (GAT) mechanism with the Listen-Before-Receive (LBR) procedure is proposed in this paper. With GAT, the LAA sender conditionally gives up or takes back transmission opportunities, and thus the unlicensed spectrum could be efficiently shared between LAA and WiFi in terms of energy usage and throughput. Evaluation results show that the proposed GAT could conditionally obtain better network performance comparing to legacy LBT.

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主出版物標題2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538663585
DOIs
出版狀態已出版 - 2 7月 2018
事件88th IEEE Vehicular Technology Conference, VTC-Fall 2018 - Chicago, United States
持續時間: 27 8月 201830 8月 2018

出版系列

名字IEEE Vehicular Technology Conference
2018-August
ISSN(列印)1550-2252

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???event.eventtypes.event.conference???88th IEEE Vehicular Technology Conference, VTC-Fall 2018
國家/地區United States
城市Chicago
期間27/08/1830/08/18

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