Investigation on Frequency Diversity Effects of Various Transmission Schemes Using Frequency Domain Equalizer for DFT-Precoded OFDMA

• DENG Lianjun

  NEC Corporation

• KAWAMURA Teruo

  Radio Access Network Development Department, NTT DOCOMO, INC.

• TAOKA Hidekazu

  General Affairs Department, NTT DOCOMO, INC.

• SAWAHASHI Mamoru

  Department of Information Communication Engineering, Tokyo City University

抄録

This paper presents frequency diversity effects of localized transmission, clustered transmission, and intra-subframe frequency hopping (FH) using a 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 the frequency diversity effect, i.e., randomization level of the frequency domain interleaving associated with turbo coding. 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) using a linear minimum mean-square error (LMMSE) based FDE according to the increase in the entire transmission bandwidth for DFT-precoded OFDMA. Moreover, we show that the NFMSV is an accurate measure of the frequency diversity effect for the 3 transmission schemes for DFT-precoded OFDMA. We also clarify the frequency diversity effects of the 3 transmission schemes from the viewpoint of the required average received SNR satisfying the target average BLER for the various key radio parameters for DFT-precoded OFDMA in frequency-selective Rayleigh fading channels.

収録刊行物

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E97.A (1), 30-39, 2014

  一般社団法人 電子情報通信学会

キーワード

• single-carrier FDMA
• frequency diversity
• frequency domain equalizer
• frequency mean square covariance
• DFT-precoded OFDMA

詳細情報

• CRID: 1390282681288669056
• NII論文ID: 130003385357
• NII書誌ID: AA10826239
• DOI: 10.1587/transfun.e97.a.30
• ISSN: 17451337
• ISSN: 09168508
• NDL書誌ID: 025114210
• Web Site: http://id.ndl.go.jp/bib/025114210
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025114210
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E97.A/1/E97.A_30/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可