Bit significance selective frequency diversity transmission - voice quality improvement in fading channels

Tomoaki Kumagai, Kiyoshi Kobayashi, Katsuhiko Kawazoe, Shuji Kubota

研究成果: Paper

抜粋

This paper proposes a frequency diversity transmission scheme that obtains a frequency diversity effect and does not deteriorate spectrum efficiency by utilizing multiple carrier frequencies alternatively, not simultaneously. This scheme improves the bit error rate (BER) of significant information bits by sacrificing that of insignificant bits in fading channels. Simulation results show that the error floor of significant information bits is improved by more than 80% while that of insignificant bits is doubled. Computer simulation results show that the proposed scheme improves the ADPCM voice signal-to-noise ratio (SNR) by approximately 4 dB even when the frequency correlation is 0.5.

元の言語English
ページ910-914
ページ数5
出版物ステータスPublished - 1996 1 1
イベントProceedings of the 1996 5th IEEE International Conference on Universal Personal Communications, ICUPC'96. Part 1 (of 2) - Cambridge, MA, USA
継続期間: 1996 9 291996 10 1

Other

OtherProceedings of the 1996 5th IEEE International Conference on Universal Personal Communications, ICUPC'96. Part 1 (of 2)
Cambridge, MA, USA
期間96/9/2996/10/1

ASJC Scopus subject areas

  • Hardware and Architecture

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  • これを引用

    Kumagai, T., Kobayashi, K., Kawazoe, K., & Kubota, S. (1996). Bit significance selective frequency diversity transmission - voice quality improvement in fading channels. 910-914. 論文発表場所 Proceedings of the 1996 5th IEEE International Conference on Universal Personal Communications, ICUPC'96. Part 1 (of 2), Cambridge, MA, USA, .