Zadoff-Chu Sequence Design for Random Access Initial Uplink Synchronization in LTE-Like Systems

被引：30
|
作者：
Hyder, Md Mashud [1 ]
Mahata, Kaushik [1 ]
机构：
[1] Univ Newcastle, Dept Elect Engn, Callaghan, NSW 2308, Australia
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2017年 / 16卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
Random access; initial synchronization; Zadoff-Chu sequence; sparse representation; OFDMA; MULTIUSER DETECTION; ALGORITHM; RECOVERY; NOISE; DFT;
D O I：
10.1109/TWC.2016.2625319
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A Zadoff-Chu (ZC) sequence is uncorrelated with a non-zero cyclically shifted version of itself. However, this alone is insufficient to mitigate inter-code interference in LTE initial uplink synchronization. The performance of the state-of-the-art algorithms vary widely depending on the specific ZC sequences employed. We develop a systematic procedure to choose the ZC sequences that yield the optimum performance. It turns out that the procedure for ZC code selection in LTE standard is suboptimal when the carrier frequency offset is not small.
引用
收藏
页码：503 / 511
页数：9
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