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Block-Orthogonal Frequency Division Multiplexing in Multi-Path Fading Channel

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Abstract

Orthogonal frequency division multiplexing (OFDM) is robust against multi-path interference due to using a lot of low symbol rate sub-carriers. In order to mitigate the degradation due to multi-path interference, guard time interval (GI) is inserted into each OFDM symbol. However, redundant allocation to GI leads to loss of effective transmission power. We propose the Block-OFDM which can reduce the GI overhead ratio per frame compared with conventional OFDM. In Block-OFDM system frequency domain equalization (FDE) is carried out in order to remove multi-path interference. We evaluated Block-OFDM performance in a frequency selective fading channel and compared with that of conventional OFDM.

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Authors and Affiliations

  1. Panasonic Mobile Communications Co., Ltd., 5–3 Hikarinooka, Yokosuka, Kanagawa, 0239-0847, Japan

    Ryohei Kimura, Akiyoshi Monma, Jinsong Duan & Mitsuru Uesugi

Authors
  1. Ryohei Kimura
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  2. Akiyoshi Monma
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  3. Jinsong Duan
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  4. Mitsuru Uesugi
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Corresponding author

Correspondence to Ryohei Kimura.

Additional information

Ryohei Kimura received his B.E. and M.S degrees in communications engineering form Tohoku University, Sendai, Japan, in 2001 and 2003, respectively. In 2003, he joined Panasonic Mobile Communications Co., Ltd. His current research interests include such mobile communication technologies as OFDM and MIMO (MLD), and the like.

Akiyoshi Monma received his B.E. in communications engineering form Tohoku University, Sendai, Japan, in 1998. In 1998, he joined Panasonic Mobile Communications Sendai R&D Lab. Co., Ltd. His current research interests include such mobile communication technologies as OFDM and PAPR reduction, and the like.

Jinsong Duan received his B.E. and M.S. from Changsha Institute of Technology, China in 1987 and 1990. He received his Ph.D. from Osaka City University, Japan in 2000. From 2000–2003 he was with Mitsubishi Electric Corporation, where he engaged in research and development of WCDMA systems. From 2003, he joined Panasonic Mobile Communications Co., Ltd. His current interests include such mobile communication technologies as OFDM, MIMO, link adaptation, scheduling, and TDMA/FDMA/CDMA systems.

Mitsuru Uesugi received his B.E. degree from Waseda University in 1986 and received his Ph.D degree from Tohoku University in 2004, respectively. He is a general manager in the Mobile Communication Technology Development Center of Panasonic Mobile Communications Co., Ltd. His current research interests include such mobile communication technologies as equalization, interference cancellation, modulation method, and the like.

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Kimura, R., Monma, A., Duan, J. et al. Block-Orthogonal Frequency Division Multiplexing in Multi-Path Fading Channel. Wireless Pers Commun 38, 27–42 (2006). https://doi.org/10.1007/s11277-006-9026-9

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  • DOI: https://doi.org/10.1007/s11277-006-9026-9

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