一种新的双模微基站非授权信道接入方法

发布时间：2018-03-11 19:23

本文选题：授权频段辅助接入　切入点：双模微基站　出处：《电子与信息学报》2017年11期 　论文类型：期刊论文

【摘要】：利用非授权频段频谱资源提升网络容量需要有效地解决LTE(Long Term Evaluation)与Wi Fi的共存问题。最近,学术界和工业界相继提出了授权频段辅助接入机制和双模微基站技术提升蜂窝通信系统容量。考虑双模微基站与Wi Fi接入点覆盖范围存在部分重叠场景,该文提出一种新的双模微基站非授权信道接入机制及联合授权非授权的优化频谱资源分配方案。仿真结果表明,双模微基站和Wi Fi接入点互不可见时,新方案相比于现有方案由于考虑了空间复用具有更好的系统性能;双模微基站和Wi Fi接入点互相可见时,新方案与现有方案性能一致,即两者分时独立占用非授权频段频谱资源。
[Abstract]:Increasing network capacity using unauthorized spectrum resources requires an effective solution to the coexistence of LTE(Long Term Evaluation) and Wi-Fi. Academia and industry have put forward the technology of authorized frequency band auxiliary access and dual-mode microbase station to improve the capacity of cellular communication system. Considering the overlap between dual-mode microbase station and Wi Fi access point coverage, In this paper, we propose a new unauthorized channel access mechanism for dual-mode microbase stations and a joint unauthorized spectrum resource allocation scheme. The simulation results show that the dual-mode microbase stations and the Wi-Fi access points are not visible to each other. Compared with the existing scheme, the new scheme has better system performance because of the consideration of spatial multiplexing. When the dual-mode microbase station and the Wi-Fi access point are visible to each other, the performance of the new scheme is consistent with that of the existing scheme. That is to say, both of them occupy the spectrum resources of unauthorized frequency band independently.
【作者单位】：东南大学信息科学与工程学院;桂林电子科技大学认知无线电与信息处理教育部重点实验室;
【基金】：国家自然科学基金(61471120,61422105,61671145) 桂林电子科技大学教育部重点实验室开放基金(CRKL160203)~~
【分类号】：TN929.5

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