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Documents 基于频谱映射的异构无线网络容量分析
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  • Author Author: sophie0love
  • Date Created: 21 Nov 2010 2:47 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:50 PM
  • Views 266 views
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基于频谱映射的异构无线网络容量分析

异构无线网络是由不同的无线接入网组成的,它们的调制方式、网络带宽、多址方式等各不相同。在异构资源共享的基础上充分利用网络容量满足用户需求是异构网络融合最关键的问题。本文研究基于频谱映射的异构无线网络的容量分析。通过将WLAN和OFDMA两种无线网络的资源映射到频谱上,来分析异构网络的总体容量问题。全文的内容安排如下:
   首先,文章简单讲述了无线通信技术的发展以及未来异构网络融合的意义、问题。介绍了等效频谱在分析异构网络容量中的意义。
   第二章,简要介绍了题目研究背景所涉及的技术,如WLAN技术及IEEE802系列标准、OFDM基本原理以及OFDMA接入技术。第三章,详细介绍并提出了基于等效带宽的多业务WLAN无线资源占用的系统模型,该模型是基于多QoS保证的。通过研究WLAN中的统计时分资源的占用情况,将无线资源占用映射到频谱上,给出了差异性QoS用户的等效频谱占用和容量分析。
   第四章,与第三章类似,提出了一个基于等效带宽的组移动用户在OFDMA系统中的无线资源占用模型。通过将多QoS的组移动用户系统资源占用情况映射到频谱上,给出了OFDMA淮入容量。
   最后一章为本文的研究总结和展望。

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