Performance of carrier frequency synchronization for OFDM-based mobile cellular systems over time selective fading channels

Shin, Wonjae; Yang, Hyun Jong; You, Young-Hwan

doi:10.1080/09205071.2013.795119

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…When a UE operates in the LTE system, it is an important phase for UE to establish connection with the best serving base station as fast as possible, that is, to estimate symbol timing, frame timing, carrier frequency offset, and to identify the operating sector and cell index (CID) . Because OFDM is extremely sensitive to synchronization errors, a robust cell search technique is necessary for a UE to perform synchronization so that the cell can be recognized without the loss of orthogonality.…”

Section: Introductionmentioning

confidence: 99%

Low‐complexity joint detection of carrier frequency offset and sector cell index for LTE cellular system

Kim

Song

You

2014

Int J Communication

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SUMMARYIn this paper, we propose a low-complexity joint detection of sector cell index and integer carrier frequency offset for a long-term evolution downlink system. In order to implement a low-cost detection scheme, a primary synchronization signal used for joint parameter estimation is grouped into a number of subsets so that the pilots in each subset are strongly correlated. The estimation performance and the computational load of the proposed scheme are compared with those of the commonly used conventional detection scheme using a differential correlation to remove common channel effects. It is found that the proposed scheme can jointly detect the cell index and integer carrier frequency offset with higher accuracy and much lower complexity, compared with the conventional scheme.

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Section: Introductionmentioning

confidence: 99%