Abstract
This paper presents broadband packet wireless access schemes based on Variable Spreading Factor (VSF)-Orthogonal Frequency and Code Division Multiplexing (OFCDM) in the forward link and Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA in the reverse link for the systems beyond IMT-2000. In our design concept for wireless access in both links, radio parameters such as the spreading factor are optimally controlled so that the system capacity is maximized according to the cell configuration, channel load, and radio channel conditions, based on the tradeoff between efficient suppression of other-cell interference and the capacity increase in the target cell by exploiting orthogonality in the time and frequency domains. We demonstrate that the peak throughput of greater than 100 Mbps and 20 Mbps is achieved by the implemented base station and mobile station transceivers using the 100-MHz and 40-MHz bandwidths in the forward and reverse links, respectively. Moreover, the simulation results elucidate the possibility of the peak throughput of approximately 1 Gbps for short-range area application using the 100-MHz bandwidth OFCDM forward link by applying four-branch Multiple Input Multiple Output (MIMO) multiplexing with 16QAM data modulation and punctured turbo coding.
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References
GPP, 3G TR25.858, “Physical Layer Aspects of UTRA High Speed Downlink Packet Access.”
S. Abeta, et al., “Performance of coherent Multi-Carrier/DS-CDMA and MC-CDMA for broadband packet wireless access,” IEICE Trans. Commun., vol. E84-B, no. 3, pp. 406–414, Mar. 2001.
S. Abeta, et al., “Forward link capacity of coherent DS-CDMA and MC-CDMA broadband packet wireless access in a multi-cell environment,” IEEE VTC2000-Fall, pp. 2213–2218, Sept. 2000.
H. Atarashi, et al., “Broadband packet wireless access appropriate for high-speed and high-capacity throughput,” IEEE VTC2001-Spring, pp. 566–570, May 2001.
N. Yee, et al., “Multi-Carrier CDMA in indoor wireless radio networks,” PIMRC’93, pp. 109–113, Sept. 1993.
K. Fazel et al., “On the performance of convolutional-coded CDMA/OFDM for mobile communication systems,” PIMRC’93, pp. 468–472, Sept. 1993.
H. Atarashi, et al., “Variable spreading factor orthogonal frequency and code division multiplexing (VSF-OFCDM) for broadband packet wireless access,” IEICE Trans. Commun., vol. E86-B, no. 1, pp. 291–299, Jan. 2003.
Y. Goto, et al., “Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA in reverse link for broadband wireless access,” PIMRC2003, pp. 254–259, Sept. 2003.
M. Schnell, et al., “A promising new wideband multiple-access scheme for future mobile communication,” European Trans. on Telecommun. (ETT), vol. 10, no. 4, pp. 417–427, July/Aug. 1999.
K. Miyoshi, et al., “A study on time domain spreading for OFCDM,” Technical Report of IEICE, RCS2001–179, Nov. 2001 (in Japanese).
A. Sumasu, et al., “An OFDM-CDMA system using combination of time and frequency domain spreading,” Technical Report of IEICE, RCS2000–3, Apr. 2000 (in Japanese).
A. Persson, et al., “Time-frequency localized CDMA for downlink multi-carrier systems,” IEEE ISSSTA 2002, pp. 118–122, Sept. 2002.
H. Atarashi, et al., “Broadband packet wireless access based on VSF-OFCDM and MC/DSCDMA,” IEEE PIMRC2002, pp. 992–997, Sept. 2002.
N. Maeda, et al., “Variable spreading factor-OFCDM with two dimensional spreading that prioritizes time domain spreading for forward link broadband wireless access,” IEEE VTC2003Spring, pp. 127–132, Apr. 2003.
N. Maeda, et al., “Experimental evaluation of throughput performance in broadband packet wireless access based on VSF-OFCDM and VSF-CDMA,” PIMRC2003, pp. 6–11, Sept. 2003.
J. Kawamoto, et al., “Comparison of space division multiplexing schemes employing multiple antennas in OFDM forward link,” to appear in IEEE VTC2003-Fall.
G. J. Foschini, Jr., “Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas,” Bell Labs Tech. J., pp. 41–59, Autumn 1996.
V. Tarokh, et al., “Space-time block coding for wireless communications: performance results,” IEEE J Select. Areas Commun., vol. 17, no. 3, pp. 451460, Mar. 1999.
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© 2004 Springer Science+Business Media Dordrecht
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Atarashi, H., Sawahashi, M. (2004). Broadband Wireless Access Based on VSF-OFCDM and VSCRF-CDMA and its Experiments. In: Fazel, K., Kaiser, S. (eds) Multi-Carrier Spread-Spectrum. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0502-8_1
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DOI: https://doi.org/10.1007/978-94-017-0502-8_1
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-6524-7
Online ISBN: 978-94-017-0502-8
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