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Two-slot channel es...
Two-slot channel estimation for analog network coding based on OFDM in a frequency-selective fading channel
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- Sjödin, Tomas (author)
- Umeå universitet,Institutionen för datavetenskap
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- Gacanin, Haris (author)
- Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
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- Adachi, Fumiyuki (author)
- Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
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(creator_code:org_t)
- IEEE, 2010
- 2010
- English.
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In: IEEE Vehicular Technology Conference. - : IEEE. - 9781424425181 ; , s. 1-5
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Recently, broadband analog network coding (ANC) was introduced to utilize high-data rate transmission over the wireless - frequency selective fading - channel. However, ANC requires the knowledge of channel state information (CSI) for self-information removal and coherent signal detection. In this paper, we propose a two-slot pilot-assisted CE for bi-directional broadband ANC. In the first slot, two users transmit their respective pilots to the relay, where the users' pilot signals are designed to avoid the interference and consequently, allow the relay to estimate the CSIs from both users. During the second slot the relay broadcast its pilot signal to both users that estimate the corresponding CSIs. It was shown by computer simulation that, even with imperfect CSI, the BER performance of broadband ANC gives a satisfactory performance for a low and moderate mobile terminal speed in a frequency-selective fading channel.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Keyword
- Broadband ANC
- Channel estimation
- OFDM
Publication and Content Type
- ref (subject category)
- kon (subject category)
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