Narayanaswamy, KV and Kurahatti, NG and Srinivas, T (2006) Carrier frequency offset estimation in multiuser simultaneous channel access for MIMO-OFDM based WLANs. In: 2006 IFIP International Conference on Wireless and Optical Communications Networks, 11 April 2006, India.
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Abstract
The goal of this paper is to propose a method for carrier frequency offset estimation in a scenario where multiple users upload to a central coordinator simultaneously. OFDM based systems are highly prone carrier frequency offsets. The CFO estimation method proposed here is performed in time domain thereby facilitating a reduction in complexity at the central coordinator. The estimator makes use of the orthogonal training sequences that were transmitted by the different users. It is shown that the resulting CFO estimator is optimal not only in the sense that it minimizes the estimation error variance due to inter carrier interference. © 2006 IEEE.
Item Type: | Conference Paper |
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Publication: | 2006 IFIP International Conference on Wireless and Optical Communications Networks |
Publisher: | IEEE Computer Society |
Additional Information: | The copyright of this article belongs to IEEE Computer Society |
Keywords: | Channel state information; Error analysis; Optimization; Orthogonal frequency division multiplexing; Signal interference; Wireless local area networks (WLAN), Carrier frequency; Frequency offset estimation; Multiple users upload; Orthogonal training sequences, Frequency estimation |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
Date Deposited: | 21 Aug 2020 09:20 |
Last Modified: | 21 Aug 2020 09:20 |
URI: | http://eprints.iisc.ac.in/id/eprint/66229 |
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