Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

Abstract

In this paper, we investigate the channel estimation and time synchronization problem based on the zero correlation zone (ZCZ) sequence set for single carrier multiple-input multiple-output frequency domain equalization (SC-MIMO-FDE). A factorized construction of ZCZ sequence set considering the properties of both ZCZ and nonzero correlation zone (NCZ) is proposed with efficient generator and correlator, which can be in favor of timing synchronization and channel estimation both in performance and computation complexity. Using the ZCZ sequence set, a new algorithm called twice section-maximum algorithm is put forward to eliminate energy interference among channels from different transmitting antennas to the same receiving antenna. The performance achieved by the developed algorithm which performs joint timing synchronization and channel estimation with lower computational cost is better than that of the conventional method.

Parameter estimation based on factor graph in wide‐band OFDM systems

“…Hence, it estimates the amplitudes through calculating the cross‐correlation between the received signal and the resampled, delayed version of the original probe signal. For better estimation accuracy, the method uses the zero correlation zone (ZCZ) sequence [19] as the probe signal.…”

An Overview of China Millimeter-Wave Multiple Gigabit Wireless Local Area Network System

“…The zero correlation zone (ZCZ) sequence that is firstly introduced to enhance the robustness of synchronization in code division multiple access (CDMA) system [50], is adopted to be the short training field (STF) sequence and the channel estimation field (CEF) sequence in CMMG WLAN standard. CMMG task group adopted the matrix factorized weighted construction method to generate the ZCZ sequence set based on a base ZCZ sequence set, which has the shortest length with interleaving techniques [45], [46]. Figure 5 illustrates the details of the generation of the adopted ZCZ sequence.…”

Diseño de estrategias de sincronización y estimación de canal para la mejora de comunicaciones en redes inteligentes de energía

“…Con respecto a la etapa de sincronización en sistemas PLC, algunos trabajos optan por técnicas de sincronización basada en autocorrelación [Xie 2013] [Liu 2013] [Wu 2014].…”