Combined effect of chip interleaving and frequency domain equalization for DS-CDMA

Deepshikha Garg, Fumiyuki Adachi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


DS-CDMA with frequency domain minimum mean square error (MMSE) equalization can provide much better performance than that with rake combining in a frequency selective fading channel. When frequency domain equalization is used, the frequency selectivity of the channel is thoroughly exploited. Chip interleaving is a form of channel interleaving that improves the DS-CDMA performance by converting the channel into a highly time selective channel. In this paper we apply chip interleaving to DS-CDMA with frequency domain MMSE equalization to see if the performance can be further improved. It is found that chip interleaving improves the performance for all channel conditions. In addition, chip interleaving is beneficial in the presence of turbo coding and antenna diversity as well.

Original languageEnglish
Pages (from-to)435-439
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number1
Publication statusPublished - 2004
Event2004 IEEE 59th Vehicular Technology Conference, VTC2004-Spring: Towards a Global Wireless World - Milan, Italy
Duration: 2004 May 172004 May 19


  • Chip interleaving
  • Frequency domain equalization
  • Turbo coding


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