Frequency-domain pre-rake transmission for DSSS/TDD mobile communications systems

Fumiyuki Adachi, Kazuaki Takeda, Hiromichi Tomeba

Research output: Contribution to journalArticlepeer-review


In this Letter, a frequency-domain pre-rake transmission is presented for a direct sequence spread spectrum with time division duplex (DSSS/TDD) system under a frequency-selective fading channel. The mathematical relationship between frequency-domain and time-domain pre-rake transmissions is discussed. It is confirmed by the computer simulation that, similar to the time-domain pre-rake transmission, frequency-domain pre-rake transmission can improve the bit error rate (BER) performance. The frequency-domain pre-rake transmission shows only slight performance degradation compared to the frequency-domain rake reception for large SF.

Original languageEnglish
Pages (from-to)784-787
Number of pages4
JournalIEICE Transactions on Communications
Issue number2
Publication statusPublished - 2005


  • Frequency-domain equalization
  • Mobile radio
  • Pre-rake
  • Spread spectrum


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