摘要
传统的小区搜索方案主要是通过计算接收信号和本地序列的相关性来检测小区ID,这种方法带来了较高的计算复杂度,而且由于处理时间过长而导致开机时间延迟、驻留时间过长和耗费电量等一系列问题。描述了一种性能良好的特殊结构序列作为前导序列,该序列是两个基序列的线性联合;在这个序列的基础上提出了一种低复杂度的小区ID检测算法。仿真结果表明,在信噪比良好的情况下,该算法有稳定可靠、易于实现等特点。
The traditional cell search scheme detects the cell ID by computing the correlation between the received signal and all transmitted sequences.However,it causes high computational complexity and considerable processing time which effect the delay time of services power on,the standby time,the energy consumption.This paper firstly proposed a perfect sequence with special structure as preamble,and the sequence was linear combination of two base sequences.In addition,a low complexity cell search scheme,which utilized the proposed perfect sequence.Simulation results show the effectiveness and reliability of the algorithm under the scenarios with good SNR.
出处
《计算机应用研究》
CSCD
北大核心
2011年第11期4263-4265,共3页
Application Research of Computers
基金
国家科技重大专项项目(2009ZX03002-009)
