Coherent Hybrid DS-FFH CDMA with Adaptive Interference Cancelling for Cellular Mobile Communications

Shigeru TOMISATO; Kazuhiko FUKAWA; Hiroshi SUZUKI

Coherent Hybrid DS-FFH CDMA with Adaptive Interference Cancelling for Cellular Mobile Communications

Shigeru TOMISATO, Kazuhiko FUKAWA, Hiroshi SUZUKI

Full Text Views

0

Cite this

Summary :

This paper proposes Coherent-HYBrid Direct-Sequence Fast-Frequency-Hopping (CHYB-DS-FFH) CDMA with Adaptive Interference Cancelling (AIC) for cellular mobile communications. The features of CHYB-DS-FFH are symbol-by-symbol frequency diversity and low chip-rate DS multiplexing both of which are based on a coherent FFH modulation and demodulation scheme. The combination of coherent FFH, space diversity, and AIC is very effective for reducing the performance degradation due to interference. Computer simulations demonstrate BER performance of a 2 hop 500-kHz-interval frequency hopping system using () a linear canceller or () a nonlinear canceller. Both systems employ the two branch space diversity reception of 10kb/s QPSK with FFH over a 1MHz system bandwidth. In quasi-static channels, the average BER performance is 10^-2 with average E_b/N₀ less than 8dB. In dynamic fading channels under full interference conditions, CHYB-DS-FFH with the linear adaptive interference canceller realizes a BER of 10^-2 at the average E_b/N₀ of 15dB with maximum Doppler frequency f_D of 5Hz, whereas CHYB-DS-FFH with the non-linear adaptive interference canceller achieves the same BER at the average E_b/N₀ of 15dB with f_D, equal to 30Hz.

Publication: IEICE TRANSACTIONS on Communications Vol.E77-B No.5 pp.589-597

Publication Date: 1994/05/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications)

Category

Cite this

Copy

Shigeru TOMISATO, Kazuhiko FUKAWA, Hiroshi SUZUKI, "Coherent Hybrid DS-FFH CDMA with Adaptive Interference Cancelling for Cellular Mobile Communications" in IEICE TRANSACTIONS on Communications, vol. E77-B, no. 5, pp. 589-597, May 1994, doi: .
Abstract: This paper proposes Coherent-HYBrid Direct-Sequence Fast-Frequency-Hopping (CHYB-DS-FFH) CDMA with Adaptive Interference Cancelling (AIC) for cellular mobile communications. The features of CHYB-DS-FFH are symbol-by-symbol frequency diversity and low chip-rate DS multiplexing both of which are based on a coherent FFH modulation and demodulation scheme. The combination of coherent FFH, space diversity, and AIC is very effective for reducing the performance degradation due to interference. Computer simulations demonstrate BER performance of a 2 hop 500-kHz-interval frequency hopping system using () a linear canceller or () a nonlinear canceller. Both systems employ the two branch space diversity reception of 10kb/s QPSK with FFH over a 1MHz system bandwidth. In quasi-static channels, the average BER performance is 10^-2 with average E_b/N₀ less than 8dB. In dynamic fading channels under full interference conditions, CHYB-DS-FFH with the linear adaptive interference canceller realizes a BER of 10^-2 at the average E_b/N₀ of 15dB with maximum Doppler frequency f_D of 5Hz, whereas CHYB-DS-FFH with the non-linear adaptive interference canceller achieves the same BER at the average E_b/N₀ of 15dB with f_D, equal to 30Hz.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e77-b_5_589/_p

Copy

@ARTICLE{e77-b_5_589,
author={Shigeru TOMISATO, Kazuhiko FUKAWA, Hiroshi SUZUKI, },
journal={IEICE TRANSACTIONS on Communications},
title={Coherent Hybrid DS-FFH CDMA with Adaptive Interference Cancelling for Cellular Mobile Communications},
year={1994},
volume={E77-B},
number={5},
pages={589-597},
abstract={This paper proposes Coherent-HYBrid Direct-Sequence Fast-Frequency-Hopping (CHYB-DS-FFH) CDMA with Adaptive Interference Cancelling (AIC) for cellular mobile communications. The features of CHYB-DS-FFH are symbol-by-symbol frequency diversity and low chip-rate DS multiplexing both of which are based on a coherent FFH modulation and demodulation scheme. The combination of coherent FFH, space diversity, and AIC is very effective for reducing the performance degradation due to interference. Computer simulations demonstrate BER performance of a 2 hop 500-kHz-interval frequency hopping system using () a linear canceller or () a nonlinear canceller. Both systems employ the two branch space diversity reception of 10kb/s QPSK with FFH over a 1MHz system bandwidth. In quasi-static channels, the average BER performance is 10^-2 with average E_b/N₀ less than 8dB. In dynamic fading channels under full interference conditions, CHYB-DS-FFH with the linear adaptive interference canceller realizes a BER of 10^-2 at the average E_b/N₀ of 15dB with maximum Doppler frequency f_D of 5Hz, whereas CHYB-DS-FFH with the non-linear adaptive interference canceller achieves the same BER at the average E_b/N₀ of 15dB with f_D, equal to 30Hz.},
keywords={},
doi={},
ISSN={},
month={May},}

Copy

TY - JOUR
TI - Coherent Hybrid DS-FFH CDMA with Adaptive Interference Cancelling for Cellular Mobile Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 589
EP - 597
AU - Shigeru TOMISATO
AU - Kazuhiko FUKAWA
AU - Hiroshi SUZUKI
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E77-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 1994
AB - This paper proposes Coherent-HYBrid Direct-Sequence Fast-Frequency-Hopping (CHYB-DS-FFH) CDMA with Adaptive Interference Cancelling (AIC) for cellular mobile communications. The features of CHYB-DS-FFH are symbol-by-symbol frequency diversity and low chip-rate DS multiplexing both of which are based on a coherent FFH modulation and demodulation scheme. The combination of coherent FFH, space diversity, and AIC is very effective for reducing the performance degradation due to interference. Computer simulations demonstrate BER performance of a 2 hop 500-kHz-interval frequency hopping system using () a linear canceller or () a nonlinear canceller. Both systems employ the two branch space diversity reception of 10kb/s QPSK with FFH over a 1MHz system bandwidth. In quasi-static channels, the average BER performance is 10^-2 with average E_b/N₀ less than 8dB. In dynamic fading channels under full interference conditions, CHYB-DS-FFH with the linear adaptive interference canceller realizes a BER of 10^-2 at the average E_b/N₀ of 15dB with maximum Doppler frequency f_D of 5Hz, whereas CHYB-DS-FFH with the non-linear adaptive interference canceller achieves the same BER at the average E_b/N₀ of 15dB with f_D, equal to 30Hz.
ER -