Abstract
General techniques are presented to investigate the feasibility of spectrum sharing between a DS-CDMA mobile radio system and a fixed point-to-point microwave link. The limitations of a spectrum sharing arrangement are identified for specific system parameters. Initial results indicate that, for the systems considered, spectrum sharing will be difficult to implement in many environments and that the spectrum sharing arrangement is limited by the mobile radio system performance, in particular the reverse mobile link. However it is shown that the coordination requirements of the two systems converge when the mobile transmission power is increased. When excision suppression is used to remove fixed service interference at a mobile receiver, it may have an adverse effect on the mobile system performance due to a degradation in the correlation characteristics of the received signal. The degradation in the received signal depends on the width and centre frequency of the excised interference relative to the mobile signal.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L.B. Milstein et al., "On the Feasibility of a CDMA Overlay for Personal Communications Networks", IEEE J. Select. Areas Commun., Vol.10, No. 4, pp. 655667, 1991.
D.L. Schilling et al., "Spread Spectrum for Commercial Communications", IEEE Commun. Mag., pp. 66–79, 1991.
P. Gardenier et al., "Sharing Issues Between FPLMTS and Fixed Services", IEEE Commun. Mag., Vol.32, No. 6, pp. 74–78, 1994.
V.K. Varma et al., "Interference, Sensitivity and Capacity Analysis forMeasurmentBasedWireless Spectrum Sharing", IEEE Trans. Vehic. Technol., Vol.43, No. 3, pp. 611–616, 1994.
K.G. Filis and S.C. Gupta, "Overlay of Cellular CDMA on FSM", IEEE Trans. Vehic. Technol., Vol.43, No. 1, pp. 86–97, 1994.
Y. Tsai and J. Chang, "Feasibility of Adding Personal Communications Network to an Existing FixedService Microwave System", IEEE Trans. Commun., Vol.44, No. 1, pp. 76–83.
P.J. Marshall, K.W. Sowerby and M. Shafi, "On Spectrum Between Mobile Radio Systems and Fixed Services", Conf. Proc. APCC'95, Osaka, Japan, pp. 450–454, 1995.
P.J. Marshall, K.W. Sowerby and M. Shafi, "Feasibility Study on Spectrum Sharing Between a DSCDMA Modile Radio System and a Fixed PointtoPoint Microwave Link", Electronic Letters, Vol.31, No. 23, pp. 1974–1975, 1995.
F. Ivanek, Terrestrial Digital Microwave Communications, Artech House, 1989.
L.B. Milstein, T.S. Rappaport and R. Barghouti, "Performance Evaluation for Cellular CDMA", IEEE J. Select. Areas Commun., Vol.10, No. 4, pp. 680–689, 1992.
W.C. Jakes, Microwave Mobile Communications, John Wiley, New York, 1974.
O.K. Tonguz and M.M. Wang, "Cellular CDMA Networks Impaired by Rayleigh Faiding: System Performance with Power Control", IEEE Trans. Vehic. Technol., Vol.43, No. 3, pp. 515–527, 1994.
A.J. Viterbi, A.M. Viterbi and E. Zehavi, "Other Cell Interference in Cellular Power Controlled CDMA", IEEE Trans. Commun., Vol.42, No. 4, pp. 1501–1504, 1994.
J.G. Proakis and D.G. Manolakis, Digital Signal Processing, Macmillan, Canada, Chapter 5, 1992.
M.B. Pursley and D.V. Sarwate, "Performance Evaluation for Phase Coded Spread SpectrumMultiple Access Communication: Part 2 Code Sequence Analysis", IEEE Trans. Commun., Vol.COM25, No. 8, pp. 800–803, 1977.
S.C. Schwartz and Y.S. Yeh, "On the Distribution Function and Moments of Power Sums with LogNormal Components", B.S.T.J., Vol.61, No. 7, pp. 1441–1463, 1982.
L.B. Milstein, "Overview of Some Recent Research in Signal Processing for Personal Communication Networks", S.P.I.E., Vol.1770, pp. 130–133, 1992.
S.D. Sandberg, "Adapted Demodulation for Spread Spectrum Receivers which Employ TransformDomain Interference Excision", IEEE Trans. Commun., Vol.43, No. 9, pp. 2502–2510.
S.M. Sussman and E.J. Ferrari, "The Effects of Notch Filters on the Correlation Properties of a PN Signal", IEEE Trans. Aerosp. and Electronic Systems, Vol.AES10, No. 3, pp. 385–390, 1974.
M.P.M. Hall, The Effects of the Troposphere on Radio Communication, Stevenage, New York, 1979.
"Propagation Data and Prediction Methods Required for Terrestrial Line of Sight Systems", CCIR Report 3386, Section 5E, 1990.
"Interference Criteria for Microwave Systems in the Private Radio Services", EIA 10D/TIA Telecom. Bull., Electronic Industries Assoc., 1983.
W.C.Y. Lee, Mobile Cellular Telecommunications Systems, New York, McGrawHill, 1989.
K.W. Sowerby, "Outage Probability in Mobile Radio Systems", PhD Thesis, 1989, The University of Auckland, New Zealand.
W. Gr¨obner and N. Horeiter, Integraltafel zweiter Teil bestimmte Integrale,SpringerVerlag, Wien, 1973.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Marshall, P., Shafi, M. & Sowerby, K. Feasibility of Spectrum Sharing Between Fixed and Mobile Radio Systems. Wireless Personal Communications 9, 31–55 (1999). https://doi.org/10.1023/A:1018323213193
Issue Date:
DOI: https://doi.org/10.1023/A:1018323213193