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On improving spectrum utilization through cooperative diversity and dynamic spectrum trading.

机译:通过合作多样性和动态频谱交易提高频谱利用率。

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摘要

The prime wireless spectrum is inherently a critical yet scarce resource. As the demand of wireless bandwidth grows exponentially, it becomes a crucial issue to improve the spectrum utilization for the development and deployment of any new wireless technologies. In this thesis, we seek to address this problem through cooperative diversity and dynamic spectrum trading, in the context of the envisioned primary-secondary dynamic spectrum sharing paradigm. For an OFDMA-based cellular primary network which owns an exclusive right to access a certain spectrum band, we propose XOR-assisted cooperative diversity to improve the spectral efficiency of the allocated band, as well as an optimization framework to address the resource allocation problem. For the secondary network that utilizes cognitive radios to opportunistically exploit the spectrum white spaces, we establish a spectrum secondary market, design the market institution based on double auctions, and solve the decision making problem using reinforcement learning, to improve spectrum utilization via trading among secondary users.
机译:首要的无线频谱本质上是关键而稀缺的资源。随着无线带宽需求的成倍增长,对于任何新的无线技术的开发和部署来说,提高频谱利用率已成为至关重要的问题。在本文中,我们试图在设想的一次-二次动态频谱共享范例的背景下,通过合作多样性和动态频谱交易来解决这个问题。对于拥有访问特定频谱的专有权的基于OFDMA的蜂窝主网络,我们提出了XOR辅助的协作分集来提高分配频段的频谱效率,并提出了一种优化框架来解决资源分配问题。对于利用认知无线电机会性地利用频谱空白的次级网络,我们建立了一个频谱二级市场,设计了基于两次拍卖的市场机构,并通过强化学习解决了决策问题,从而通过次级之间的交易来提高频谱利用率。用户。

著录项

  • 作者

    Xu, Hong.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Electrical engineering.;Computer engineering.
  • 学位 M.A.Sc.
  • 年度 2010
  • 页码 103 p.
  • 总页数 103
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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