| Presentation | 2012-06-22 Investigation on Frequency Diversity Effects for Various Transmission Schemes Using Frequency Domain Equalizer in DFT-Precoded OFDMA Lianjun Deng, Teruo Kawamura, Hidekazu Taoka, Mamoru Sawahashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents frequency diversity effects of localized transmission, clustered transmission, and intra-subframe frequency hopping (FH) using frequency domain equalizer (FDE) for Discrete Fourier Transform (DFT)-precoded Orthogonal Frequency Division Multiple Access (OFDMA). In the evaluations, we employ the normalized frequency mean square covariance (NFMSV) as a measure of frequency diversity effect, i.e., randomization level of frequency domain interleaving associated with turbo code. Link-level computer simulation results show that frequency diversity is very effective in decreasing the required average received signal-to-noise power ratio (SNR) at the target average block error rate (BLER) according to the increase in the entire frequency region in the DFT-precoded OFDMA using linear minimum mean square error (LMMSE) based FDE. Moreover, we show that the NFMSV is an accurate measure of frequency diversity effect for localized transmission in terms of the average BLER and that the NFMSV for the entire frequency region also approximates the frequency diversity effect for clustered transmission well. Finally, we show that the effect of intra-subframe FH is saturated at the relatively narrow FH separation and that there is no close relationship between FH separation and the NFMSV for the intra-subframe FH. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communications / Single-carrier FDMA / Frequency diversity / NFMSV / Localized transmission |
| Paper # | RCS2012-59 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/6/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation on Frequency Diversity Effects for Various Transmission Schemes Using Frequency Domain Equalizer in DFT-Precoded OFDMA |
| Sub Title (in English) | |
| Keyword(1) | Mobile communications |
| Keyword(2) | Single-carrier FDMA |
| Keyword(3) | Frequency diversity |
| Keyword(4) | NFMSV |
| Keyword(5) | Localized transmission |
| 1st Author's Name | Lianjun Deng |
| 1st Author's Affiliation | Department of Information Network Engineering, Tokyo City University() |
| 2nd Author's Name | Teruo Kawamura |
| 2nd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 3rd Author's Name | Hidekazu Taoka |
| 3rd Author's Affiliation | DOCOMO Communications Laboratories Europe GmbH |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | Department of Information Network Engineering, Tokyo City University |
| Date | 2012-06-22 |
| Paper # | RCS2012-59 |
| Volume (vol) | vol.112 |
| Number (no) | 89 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |