A synchronization and cell searching technique using pilot tones for OFDM cellular systems

Dong Han Kim; Kwang Soon Kim; Jae Young Ahn; Yong Soo Cho

doi:10.1093/ietcom/e89-b.1.235

A synchronization and cell searching technique using pilot tones for OFDM cellular systems

Dong Han Kim, Kwang Soon Kim, Jae Young Ahn, Yong Soo Cho

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In this letter, a pilot structure and an efficient algorithm for downlink synchronization and cell searching in OFDM-based cellular systems are proposed. The pilots, randomly allocated in the frequency domain, allow us to minimize inter-cell interference (ICI) as well as to increase cell searching capability, estimation range of integer carrier frequency offset (CFO), and estimation accuracy of symbol timing offset (STO). The proposed low-complexity joint algorithm for integer CFO estimation, cell searching, and downlink detection is robust to ICI, multipath channel, STO and fine CFO.

Original language	English
Pages (from-to)	235-238
Number of pages	4
Journal	IEICE Transactions on Communications
Volume	E89-B
Issue number	1
DOIs	https://doi.org/10.1093/ietcom/e89-b.1.235
Publication status	Published - 2006 Jan

All Science Journal Classification (ASJC) codes

Software
Computer Networks and Communications
Electrical and Electronic Engineering

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author = "Kim, {Dong Han} and Kim, {Kwang Soon} and Ahn, {Jae Young} and Cho, {Yong Soo}",

year = "2006",

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doi = "10.1093/ietcom/e89-b.1.235",

language = "English",

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N2 - In this letter, a pilot structure and an efficient algorithm for downlink synchronization and cell searching in OFDM-based cellular systems are proposed. The pilots, randomly allocated in the frequency domain, allow us to minimize inter-cell interference (ICI) as well as to increase cell searching capability, estimation range of integer carrier frequency offset (CFO), and estimation accuracy of symbol timing offset (STO). The proposed low-complexity joint algorithm for integer CFO estimation, cell searching, and downlink detection is robust to ICI, multipath channel, STO and fine CFO.

AB - In this letter, a pilot structure and an efficient algorithm for downlink synchronization and cell searching in OFDM-based cellular systems are proposed. The pilots, randomly allocated in the frequency domain, allow us to minimize inter-cell interference (ICI) as well as to increase cell searching capability, estimation range of integer carrier frequency offset (CFO), and estimation accuracy of symbol timing offset (STO). The proposed low-complexity joint algorithm for integer CFO estimation, cell searching, and downlink detection is robust to ICI, multipath channel, STO and fine CFO.

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A synchronization and cell searching technique using pilot tones for OFDM cellular systems

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