• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual Conference on Information Sciences and Systems >Upper and Lower Bound on Signal-to-Noise Ratio Gains for Cooperative Relay Networks
【24h】

Upper and Lower Bound on Signal-to-Noise Ratio Gains for Cooperative Relay Networks

机译：基于协作继电器网络的信噪比上的上限和下限

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cooperative networking as a means of creating spatial diversity is used in order to mitigate the adverse effect of fading in a wireless channel and increase reliability of communications. We investigate signal-to-noise ratio (SNR) gain in wireless cooperative networks. We show that the differential SNR gain in the high data rate regime, which we refer to as SNR gain exponent ζ_∞, is independent of the relaying strategy and only depends on the number of transmission phases used for communication. Furthermore, a straight-line upper and lower bound is derived based on geometric considerations. It is shown that the approximation error of the upper bound with respect to the exact SNR gain tends to zero for R → ∞. For the lower bound, the approximation error tends asymptotically to a constant factor δ for R → ∞. Both bounds are the best possible straight-line bounds with respect to absolute error.
机译：使用协同组网作为一种创建空间分集的手段，以减轻衰落在无线信道中的不利影响并提高通信可靠性。我们调查无线协同网络中的信噪比（SNR）增益。我们表明，我们称之为SNR增益指数ζ_∞的高数据速率制度中的差分SNR增益与中继策略无关，并且只取决于用于通信的传输阶段的数量。此外，基于几何考虑导出直线上限和下限。结果表明，相对于精确的SNR增益的上限的近似误差趋于为r→∞。对于下限，近似误差趋于渐近地，呈R→∞的恒定因子δ倾向于。两个界限都是绝对误差的最佳直线界限。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号