BLIND DETECTION IN IDMA SYSTEMS

Hamza Abdelkrim, Kazem Ali, Salut Gerard, Chitroub Salim, Touhami Rachida

2010

Abstract

Interleaved Division Multiple Access (IDMA) is a new access scheme that has been proposed in the literature to increase the capacity of wireless channels. The performance of such systems depends on the accuracy of the channel state information (CSI) at the receiver. In this paper, a Noisy-Independent Component Analysis (NICA) based IDMA receiver for multiple access communication channels is proposed and compared to classical receivers. The N-ICA component is applied as a post processor. The estimation of CSI will often have some measurement errors, which degrade the accuracy of symbol detection. Using blind methods, this overhead can be eliminated. Simulation results demonstrate that N-ICA post processor provides an improvement in performance in terms of bit error rate (BER) in loaded systems and it offers an efficient alternative to systems with block channel estimation. When the system is not loaded, the proposed post processor presents the same performance as conventional IDMA receiver with less iterations leading to a complexity reduction.

References

  1. Ping, L. and Liu, L. (2006). Interleave Divison Multiple Access. IEEE Transactions on Wireless Communication.
  2. Ping, L. and Liu, L. (2004). Analysis and Design of IDMA Systems Based on SNR Evolution and Power Allocation VTC'04, IEEE Transactions on Wireless Communication.
  3. Mahafeno, I. (2007). Reduced Complexity Iterative MultiUser Detector for IDMA (Interleave Division Multiple Access) System, GLOBECOM06, Proceedings of IEEE Global Telecom. Conference
  4. Davies, M. E. (2004) Identifiability Issues in Noisy ICA. Proceedings of IEEE Signal..
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Paper Citation


in Harvard Style

Abdelkrim H., Ali K., Gerard S., Salim C. and Rachida T. (2010). BLIND DETECTION IN IDMA SYSTEMS . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2010) ISBN 978-989-8425-24-9, pages 137-141. DOI: 10.5220/0002934801370141


in Bibtex Style

@conference{winsys10,
author={Hamza Abdelkrim and Kazem Ali and Salut Gerard and Chitroub Salim and Touhami Rachida},
title={BLIND DETECTION IN IDMA SYSTEMS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2010)},
year={2010},
pages={137-141},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002934801370141},
isbn={978-989-8425-24-9},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2010)
TI - BLIND DETECTION IN IDMA SYSTEMS
SN - 978-989-8425-24-9
AU - Abdelkrim H.
AU - Ali K.
AU - Gerard S.
AU - Salim C.
AU - Rachida T.
PY - 2010
SP - 137
EP - 141
DO - 10.5220/0002934801370141