2019 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)最新文献

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OFDMA Resource Allocation for Real-Time Applications in IEEE 802.11ax Networks IEEE 802.11ax网络中实时应用的OFDMA资源分配
2019 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Pub Date : 2019-06-01 DOI: 10.1109/BlackSeaCom.2019.8812774
E. Avdotin, D. Bankov, E. Khorov, A. Lyakhov
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引用次数: 16
Performance Analysis of LBT with Limited Reservation Signal Duration for Fair LTE-LAA/Wi-Fi Coexistence LTE-LAA/Wi-Fi公平共存条件下有限预留信号时长的LBT性能分析
2019 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Pub Date : 2019-06-01 DOI: 10.1109/BlackSeaCom.2019.8812810
Vyacheslav Loginov, A. Lyakhov, V. Zhdanovskiy
{"title":"Performance Analysis of LBT with Limited Reservation Signal Duration for Fair LTE-LAA/Wi-Fi Coexistence","authors":"Vyacheslav Loginov, A. Lyakhov, V. Zhdanovskiy","doi":"10.1109/BlackSeaCom.2019.8812810","DOIUrl":"https://doi.org/10.1109/BlackSeaCom.2019.8812810","url":null,"abstract":"Due to increasing demand for throughput of cellular networks, the 3GPP consortium has developed LTE-LAA technology which allows LTE networks to use unlicensed frequency bands in 5 GHz spectrum for data transmission. Since this part of spectrum is already used by Wi-Fi networks, LTE-LAA introduces listen-before-talk (LBT) channel access mechanism for fair channel sharing. LBT is based on CSMA/CA and uses binary exponential backoff similar to Wi-Fi. However, there are some important differences. First, by default, LTE-LAA transmission is longer than Wi-Fi one. Second, due to technology constraints, LTE-LAA data transmission in unlicensed spectrum can only be started at the licensed spectrum slot boundaries (LSSBs). If the LTE-LAA BS remains silent between the end of backoff procedure and LSSB, some Wi-Fi stations may occupy the channel. In many papers, to save the channel for the LTE-LAA transmission, it is proposed to send reservation signal until the closest LSSB after the backoff procedure finish. Because of aforementioned differences, channel resource sharing between LTE-LAA and Wi-Fi devices appears to be unfair. In this paper, we propose to limit the reservation signal duration in order to achieve fair LTE-LAA/Wi-Fi coexistence. We implement the proposed solution in the ns-3 simulator and prove its efficiency in different scenarios.","PeriodicalId":359145,"journal":{"name":"2019 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124209821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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