Presentation 2012-11-21
Throughput Performance of Amplify-and-Forward Relaying with Adaptive Frequency Offset in Multiuser Cellular Downlink
Takayuki SHIBA, Naoki KIKUCHI, Mamiko INAMORI, Yukitoshi SANADA,
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Abstract(in English) This report evaluates the throughput performance of an adaptive frequency offset selection scheme in an Amplify-and-Forward (AF) relay system. On the downlink of an OFDMA multiple access system, only the partial band of the channel may be allocated for cell edge terminals and relay stations in order to avoid intercell interference. On the other hand, the whole channel is assumed to be available to the relay stations as the transmission range is limited. In the proposed AF relay, the frequency of the retransmitted signal is shifted over the whole channel according to the channel response. Numerical results through computer simulation show that the throughput performance of the proposed AF relay improves by approximately 25% as compared to that of the relay without frequency offset.
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Keyword(in English) 4G / OFDMA / Amplify-and-Forward Relay / Proportional Fair
Paper # CS2012-66
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Committee CS
Conference Date 2012/11/14(1days)
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Registration To Communication Systems (CS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Throughput Performance of Amplify-and-Forward Relaying with Adaptive Frequency Offset in Multiuser Cellular Downlink
Sub Title (in English)
Keyword(1) 4G
Keyword(2) OFDMA
Keyword(3) Amplify-and-Forward Relay
Keyword(4) Proportional Fair
1st Author's Name Takayuki SHIBA
1st Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University()
2nd Author's Name Naoki KIKUCHI
2nd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
3rd Author's Name Mamiko INAMORI
3rd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
4th Author's Name Yukitoshi SANADA
4th Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
Date 2012-11-21
Paper # CS2012-66
Volume (vol) vol.112
Number (no) 309
Page pp.pp.-
#Pages 6
Date of Issue