A Synchronization Technique for OFDM Systems with Smart Antenna (日韓合同ワークショップ 1st Korea-Japan Joint Workshop on Ubiquitous Computing and Networking Systems (ubiCNS 2005))
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概要
- 論文の詳細を見る
In this paper, a method of carrier frequency offsets (CFO) synchronization and adaptive beamforming is proposed for orthogonal frequency division multiple access (OFDMA) systems with smart antenna. An estimation method for uplink CFO is proposed for spatial division multiple access (SDMA) environments where interference signals from other users are present at the same frequency band with different CFOs. The proposed synchronization and beamforming method form a beam in the direction of a desired user with CFO compensated, while place nulls in the direction of other users with different CFOs. The proposed method does not require an additional synchronization preamble for uplink CFO or feedback loop for initial synchronization.
- 社団法人情報処理学会の論文
- 2005-06-09
著者
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Kim Dong
School Of Electrical And Electronic Engineering Chung-ang Univ.
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AHN Jae
ETRI (Electronics and Telecommunication Research Institute)
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Lee Kyu
Chung-Ang University
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Kim Dong
Chung-Ang University
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Cho Yong
Chung-Ang University
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Cho Yong
Chung‐ang Univ. Seoul Kor
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Kim Dong
Chung Buk National University
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