Subband Adaptive Array for MIMO-STBC CDMA System

Nordin Bin RAMLI
Tetsuki TANIGUCHI
Yoshio KARASAWA

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E90-A    No.10    pp.2309-2317
Publication Date: 2007/10/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e90-a.10.2309
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
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,  

Full Text: PDF(479.2KB)>>
Buy this Article



Summary: 
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.


open access publishing via