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Optimal policies for handoff and channel assignment in networks of LEO satellites using CDMA

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Abstract

In this paper, we formulate the combined handoff and channel assignment problems in a CDMA LEO satellite network as a reward/cost optimization problem. The probabilistic properties of signals (channel fading as function of satellite elevation angle) and of the traffic in the footprints are used to formulate a finite‐horizon Markov decision process. The optimal policy is obtained by minimizing a cost function consisting of the weighted sum of the switching costs and blocking costs of traffics subject to a bit‐error‐rate or outage probability constraint. A backward induction algorithm is applied to derive the optimal policy. Performance of the optimal policy and the direct threshold policy are compared.

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References

  1. M. Asawa and W.E. Stark, A framework for optimal scheduling of handoffs in wireless networks, in: Proc. Globecom (1994) pp. 1669‐ 1673.

  2. M. Asawa and W.E. Stark, Optimal scheduling of soft Handoffs in DS/CDMA communication systems, in: Proc. Infocom' 95 (1995) pp. 105‐112.

  3. Y.-W. Chang and E. Geraniotis, Optimal policies for handoff and channel assignment in CDMA cellular networks, in: Proc. 29th Conf. on Information Sciences and Systems (Johns Hopkins University, March 1995) pp. 7‐12.

  4. Y.-W. Chang and E. Geraniotis, Optimal policies for hard and soft handoff and channel assignment in CDMA Cellular Networks, in: Proc. 5th International Conference on Advances in Communication and Control, Rithymno, Greece (June 1995) pp. 425‐431.

  5. E. Geraniotis, Y.-W. Chang and W.-B. Yang, Optimal strategies for admitting voice and data traffic in networks of LEO satellites using CDMA, Wireless Networks 2 (1996) 315‐327.

    Article  Google Scholar 

  6. J. Goldhirsh and W.J. Vogel, Mobile satellite propagation measurements from UHF to K band, in: Proc. AIAA Conf. on Satellite Communications Systems (1994) pp. 913‐920.

  7. L.B. Milstein, T.S. Rappaport and R. Barghouti, Performance evaluation for cellular CDMA, IEEE Journal on Selected Areas in Communications (May 1992) 680‐688.

  8. M.L. Puterman, Markov Decision Processes: Discrete Stochastic Dynamic Programming (Wiley, New York, 1994).

    Google Scholar 

  9. R. Rezaiifar, A.M. Makowski and S. Kumar, Stochastic control of handoffs in cellular networks, IEEE Journal on Selected Areas in Communications (September 1995) 1348‐1362.

  10. M. Zorzi and R.R. Rao, Capture and retransmission control in mobile radio, IEEE Journal on Selected Areas in Communications (October 1994) 1289‐1298.

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Authors and Affiliations

  1. Center for Satellite and Hybrid Communication Networks, Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA

    Yu‐Wen Chang & Evaggelos Geraniotis

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  1. Yu‐Wen Chang
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  2. Evaggelos Geraniotis
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Chang, Y., Geraniotis, E. Optimal policies for handoff and channel assignment in networks of LEO satellites using CDMA. Wireless Networks 4, 181–187 (1998). https://doi.org/10.1023/A:1019147804905

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  • DOI: https://doi.org/10.1023/A:1019147804905

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