LTE in the unlicensed spectrum: A novel coexistence analysis with WLAN systems
LTE in the unlicensed spectrum: A novel coexistence analysis with WLAN systems
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DOI：
10.1109/glocom.2014.7037343
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发表时间：
2014-12
期刊：
影响因子：
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通讯作者：
Jeongho Jeon;Qian Li;Huaning Niu;A. Papathanassiou;Geng Wu
中科院分区：
文献类型：
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作者：
Jeongho Jeon;Qian Li;Huaning Niu;A. Papathanassiou;Geng Wu
在本文中，我们考虑了长期演进(LTE)系统在非许可频谱中的运行。由于缺乏对频谱的独家使用，在未经许可的频段中的操作从根本上受到使用相同频段的其他技术的干扰。通过注意到无线局域网(WLAN)大量使用未经许可的频谱，这里我们重点关注LTE和WLAN共存时的相互影响。为此，我们提出了一种新的基于连续场近似和螺旋表示的系统间干扰分析技术，改进了以往方法的精度，适用于大规模和小规模网络。为此，我们量化了当LTE和WLAN系统在相同的未授权频谱中运行时系统间干扰的影响。
In this paper, we consider the operation of the Long Term Evolution (LTE) systems in the unlicensed spectrum. Given the lack of the exclusive use of the spectrum, the operation in the unlicensed band is fundamentally limited by interference from other technologies using the same frequency band. By noting that the unlicensed spectrum is heavily used by Wireless Local Area Networks (WLAN), here we focus on the mutual effect between LTE and WLAN when they coexist. For this, we developed a novel inter-system interference analysis technique based on the continuum field approximation and spiral representation, which improves the accuracy of the previous approaches and is applicable to both large-scale and small-scale networks. To this end, we quantify the effect of inter-system interference when the LTE and WLAN systems operate in the same unlicensed spectrum.