A combined antenna arrays and reverse-link synchronous DS-CDMA system over frequency-selective fading channels with power control error

Yong Seok Kim, Seung Hoon Hwang, Hyo Yol Park, Keum Chan Whang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

An improved antenna array (AA) has been introduced, in which reverse-link synchronous transmission technique (RLSTT) is incorporated to effectively make better an estimation of covariance matrices at a beamformer-RAKE receiver. While RLSTT is effective in the first finger at the RAKE receiver in order to reject multiple-access interference (MAI), the beamformer estimates the desired user's complex weights, enhancing its signal and reducing cochannel interference (CCI) from the other directions. In this work, it is attempted to provide a comprehensive analysis of user capacity which reflects several important factors such as the shape of multipath intensity profile (MIP), the number of antennas, and power control error (PCE), Theoretical analysis, confirmed by the simulations, demonstrates that the orthogonality provided by employing RLSTT along with AA may make the DS-CDMA system insensitive to the PCE even with fewer numbers of antennas.

Original languageEnglish
Pages (from-to)1299-1307
Number of pages9
JournalEurasip Journal on Applied Signal Processing
Volume2004
Issue number9
DOIs
StatePublished - 1 Aug 2004

Keywords

  • Antenna arrays
  • Frequency-selective fading channel
  • Power control error
  • Reverse-link synchronous DS-CDMA

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