Known Postfix Based Cell Search Technique for OFDM Cellular Systems(Integrated Systems for Communications)

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概要

• 論文の詳細を見る

• A cell search technique utilizing a known postfix for OFDM (orthogonal frequency division multiplexing) cellular systems is described. The known postfix is generated in the time domain by inserting pilots in the frequency domain and plays the role of the cyclic prefix in general OFDM systems. Since it demonstrates good correlation properties, it can be facilitated to synchronize each symbol with an identified postfix. In this paper, two different known postfixes are allocated to each cell. One is used for cell identification and symbol synchronization, which is designed to be different among neighboring cells. The other is used for frame synchronization and is the same for all cells. In the simulation, the cell search is accomplished with a probability greater than 10^<-3> at -27dB in a vehicular channel. Even at -30dB, the cell search probability is greater than 10^<-2> in a pedestrian channel as well as 10^<-3> in the AWGN (additive white gaussian noise) channel.

• 2006-04-01

著者

• Seo Jongsoo

  Yonsei Univ. Seoul Kor

• Lee Sanghoon

  Center For Info. Tech. Of Yonsei Yonsei University

• Yu Hyunkyu

  Samsung Electronics Co. Ltd. Gyeonggi‐do Kor

• Jeon Younghyun

  Center For Information Technology Of Yonsei Yonsei University

• Hong Daesik

  Yonsei Univ. Seoul Kor

• Kwun Jonghyung

  Samsung Electronics Suwon Kor

• KIM Jongkyung

  Center for Information Technology of Yonsei, Yonsei University

• YU Hyunkyu

  Center for Information Technology of Yonsei, Yonsei University

• KWUN Jonghyung

  i-Networking laboratory in the Samsung Advanced Institute of Technology

• SEO Jongsoo

  Center for Information Technology of Yonsei, Yonsei University

• HONG Daesik

  Center for Information Technology of Yonsei, Yonsei University

• Kim Jongkyung

  Yonsei Univ. Seoul Kor

関連論文

• Increasing Throughput and QoS Using Bandwidth and Region Division with Frequency Overlay over Multicell Environments
• Frequency Reuse Power Allocation for Broadband Cellular Networks(Wireless Communication Technologies)
• A Synchronization Protocol for OFDM-Based Asynchronous Access Networks(Wireless Communication Technologies)
• Known Postfix Based Cell Search Technique for OFDM Cellular Systems(Integrated Systems for Communications)
• Forward-Link Capacity Analysis for MC-CDMA(Network)
• Channel Estimation with a New Preamble Structure for a MIMO OFDM-Based WLAN System
• Channel Estimation in Comb-Type Pilot Arrangements for OFDM Systems with Null Subcarriers(Wireless Communication Technologies)
• Admission Control Utilizing Region-Based Channel Capacity(Wireless Communication Technologies)
• Reverse Link Capacity Analysis over Multi-Cell Environments(Terrestrial Radio Communications)

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