摘要
为了提高随机接入过程中前导检测的效率,文章提出一种基于频域检测的固定阈值算法,该算法在频域检测的基础上通过假设固定阈值来检测签名前导序列,与传统时域的检测算法相比,它降低了复杂度,而且在阈值的选取上更加简单。通过性能仿真证明了该算法在不同信道环境下都有良好的检测性能。
In order to improve the efficiency of the preamble detection in random access,this paper proposes a frequency domain detection-based invariable threshold algorithm,which detects the signature preamble sequence on the basis of frequency domain detection by supposing the invariable threshold.Compared with the traditional time-domain detection algorithm,it reduces the complexity and is still simpler in the choice of threshold.Simulation results prove that this method shows good performances in various wireless channels.
出处
《光通信研究》
北大核心
2011年第3期64-66,共3页
Study on Optical Communications
基金
国家科技重大专项基金资助项目(2009ZX3002-009)
