Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment

Yukitoshi SANADA; Michael PADILLA; Kiyomichi ARAKI

Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment

Yukitoshi SANADA, Michael PADILLA, Kiyomichi ARAKI

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For usage in fading environments, the idea of utilizing radio signal processing with software programmable devices promises greater flexibility and functionality. However, to realize these benefits very high performance DPSs and AD converters are required, especially for adaptive antennas with CDMA. One potential method of reducing the implementation complexity is to employ multicarrier (MC) modulation as it allows parallel signal processing in addition to its benefits in combating fading and ISI effects. This paper proposes a system utilizing MC DS/CDMA and a recursive adaptive array antenna processing algorithm for estimating the array response vector (array manifold) and hence the optimal weights. In order to evaluate this system performance results obtained through computer simulations are presented. The proposed MC system improves the accuracy of the direction-of-arrival (DOA) estimation of the signal by 2 degrees as compared with a single carrier system. It is also shown that the proposed adaptive array antenna algorithm for MC DS/CDMA reduces the number of iterations of the power method significantly and allows parallel processing of the adaptive algorithm.

Publication: IEICE TRANSACTIONS on Communications Vol.E81-B No.7 pp.1392-1400

Publication Date: 1998/07/25

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Type of Manuscript: Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)

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Yukitoshi SANADA, Michael PADILLA, Kiyomichi ARAKI, "Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment" in IEICE TRANSACTIONS on Communications, vol. E81-B, no. 7, pp. 1392-1400, July 1998, doi: .
Abstract: For usage in fading environments, the idea of utilizing radio signal processing with software programmable devices promises greater flexibility and functionality. However, to realize these benefits very high performance DPSs and AD converters are required, especially for adaptive antennas with CDMA. One potential method of reducing the implementation complexity is to employ multicarrier (MC) modulation as it allows parallel signal processing in addition to its benefits in combating fading and ISI effects. This paper proposes a system utilizing MC DS/CDMA and a recursive adaptive array antenna processing algorithm for estimating the array response vector (array manifold) and hence the optimal weights. In order to evaluate this system performance results obtained through computer simulations are presented. The proposed MC system improves the accuracy of the direction-of-arrival (DOA) estimation of the signal by 2 degrees as compared with a single carrier system. It is also shown that the proposed adaptive array antenna algorithm for MC DS/CDMA reduces the number of iterations of the power method significantly and allows parallel processing of the adaptive algorithm.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e81-b_7_1392/_p

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@ARTICLE{e81-b_7_1392,
author={Yukitoshi SANADA, Michael PADILLA, Kiyomichi ARAKI, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment},
year={1998},
volume={E81-B},
number={7},
pages={1392-1400},
abstract={For usage in fading environments, the idea of utilizing radio signal processing with software programmable devices promises greater flexibility and functionality. However, to realize these benefits very high performance DPSs and AD converters are required, especially for adaptive antennas with CDMA. One potential method of reducing the implementation complexity is to employ multicarrier (MC) modulation as it allows parallel signal processing in addition to its benefits in combating fading and ISI effects. This paper proposes a system utilizing MC DS/CDMA and a recursive adaptive array antenna processing algorithm for estimating the array response vector (array manifold) and hence the optimal weights. In order to evaluate this system performance results obtained through computer simulations are presented. The proposed MC system improves the accuracy of the direction-of-arrival (DOA) estimation of the signal by 2 degrees as compared with a single carrier system. It is also shown that the proposed adaptive array antenna algorithm for MC DS/CDMA reduces the number of iterations of the power method significantly and allows parallel processing of the adaptive algorithm.},
keywords={},
doi={},
ISSN={},
month={July},}

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TY - JOUR
TI - Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 1392
EP - 1400
AU - Yukitoshi SANADA
AU - Michael PADILLA
AU - Kiyomichi ARAKI
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E81-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 1998
AB - For usage in fading environments, the idea of utilizing radio signal processing with software programmable devices promises greater flexibility and functionality. However, to realize these benefits very high performance DPSs and AD converters are required, especially for adaptive antennas with CDMA. One potential method of reducing the implementation complexity is to employ multicarrier (MC) modulation as it allows parallel signal processing in addition to its benefits in combating fading and ISI effects. This paper proposes a system utilizing MC DS/CDMA and a recursive adaptive array antenna processing algorithm for estimating the array response vector (array manifold) and hence the optimal weights. In order to evaluate this system performance results obtained through computer simulations are presented. The proposed MC system improves the accuracy of the direction-of-arrival (DOA) estimation of the signal by 2 degrees as compared with a single carrier system. It is also shown that the proposed adaptive array antenna algorithm for MC DS/CDMA reduces the number of iterations of the power method significantly and allows parallel processing of the adaptive algorithm.
ER -