Subband Adaptive Array for MIMO-STBC CDMA System

• RAMLI Nordin Bin

  Department of Electronic Engineering, and Advanced Wireless Communication research Center (AWCC), The University of Electro-Communication

• TANIGUCHI Tetsuki

  Department of Electronic Engineering, and Advanced Wireless Communication research Center (AWCC), The University of Electro-Communication

• KARASAWA Yoshio

  Department of Electronic Engineering, and Advanced Wireless Communication research Center (AWCC), The University of Electro-Communication

Abstract

This paper presents interference suppression using a subband adaptive array (SBAA) for uplink space-time block coding (STBC) code division multiple access (CDMA) under a frequency selective fading (FSF) channel. The proposed scheme utilizes CDMA with STBC and a receive array antenna with SBAA processing at the receiver. The received signal is converted into the frequency domain before despreading and adaptive processing is performed for each subband. A novel SBAA construction is introduced to process CDMA signals based on STBC. To improve the performance of the proposed scheme, we evaluate STBC-SBAA using spreading codes cyclic prefix (CP). Simulation results demonstrate an improved performance of the proposed system for single and multiuser environments compared to competing related techniques.

Journal

• IEICE transactions on fundamentals of electronics, communications and computer sciences

  IEICE transactions on fundamentals of electronics, communications and computer sciences 90 (10), 2309-2317, 2007-10-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• space-time coding
• multiple input multiple output (MIMO)
• code division multiple access (CDMA)
• adaptive beamforming
• subband adaptive array (SBAA)
• cyclic prefix
• frequency selective fading (FSF) channel

Details

• CRID: 1571698602479894016
• NII Article ID: 110007540907
• NII Book ID: AA10826239
• ISSN: 09168508
• Text Lang: en
• Data Source:
  • CiNii Articles