Bit significance selective frequency diversity transmission

Tomoaki Kumagai, Kiyoshi Kobayashi, Katsuhiko Kawazoe, Shuji Kubota

研究成果: Article査読

抄録

This paper proposes a frequency diversity transmission scheme that obtains a frequency diversity gain and does not degrade spectrum efficiency; it utilizes multiple carrier frequencies alternately, 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 reduced to less than I/ 5 while that of insignificant bits is doubled. They also show that the proposed scheme improves the received 4-bit ADPCM voice signalto-noise ratio (SNR) by approximately 4 dB even when the frequency correlation is 0. 5.

本文言語English
ページ(範囲)545-552
ページ数8
ジャーナルIEICE Transactions on Communications
E81-B
3
出版ステータスPublished - 1998
外部発表はい

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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