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ABSTRACT

A novel distributed call admission control scheme for satellite networks operating at frequencies above 10 GHz is presented in this paper. The major factor impairing the performance of the satellite path at these frequencies is rain, a physical phenomenon exhibiting both spatial and temporal characteristics. The new scheme exploits the predictability of the satellite channel to guarantee QoS. In the proposed algorithm, each user unilaterally decides whether to accept a new call. If all users unanimously agree, then the new call is admitted. The performance of the proposed scheme is investigated via numerical results and some useful conclusions are drawn.

REFERENCES

• 1: D. K. Petraki, M. P. Anastasopoulos and P. G. Cottis, "Dynamic Resource Allocation in DVB-RCS Networks", Int. J. Sat. Commun. Netw., vol. 26, no. 3, pp. 189--210, 2008.
• 2: Yi Qian et. al "Connection Admission Control for High Capacity Multimedia Satellite Communication System"; in proc. of Globecom '99.
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• 4: Heba Koraitim and Samir Tohme, "Resource Allocation and Connection Admission Control in Satellite Networks"; IEEE J. Sel. Areas Commun., vol. 17, no. 2, pp. 360--372, February 1999.
• 5: A. Iera, A. Molinaro, S. Marano, "Call admission control and resource management issues for real-time VBR traffic in ATM-satellite networks"; IEEE. J. Sel. Areas Commun., vol. 18, no. 11, pp. 2393--2403, 2000.
• 6: D. K. Petraki, M. P. Anastasopoulos, P. G. Cottis, "Call admission Control in Satellite Networks Under Rain Fading", accepted for publication to IEEE Commun. Letters.
• 7: Fatih Alagöz , David Walters , Amina AlRustamani , Branimir Vojcic , Raymond Pickholtz, Adaptive rate control and QoS provisioning in direct broadcast satellite networks, Wireless Networks, v.7 n.3, p.269-281, 05/01/2001 [doi>10.1023/A:1016678122925]
• 8: L. Feral et. al, "HYCELL: A new hybrid model of the rain horizontal distribution for propagation studies. Part 1: Modelling of the rain cell", Radio Science, vol. 38, no. 3, 1056, 2003.
• 9: L. Feral et. al, "HYCELL: a new hybrid model of the rain horizontal distribution for propagation studies. Part 2: Statistical modelling of the rain rate field", Radio Science, vol. 38, no. 3, 1057, 2003.
• 10: B. C. Gremont, M. Filip, "Spatio-temporal rain attenuation model for application to fade mitigation techniques", IEEE trans. Ant. and Propag., Vol. 52, no. 5, pp. 1245--1256, May 2004
• 11: A. D. Panagopoulos, and J. D. Kanellopoulos, "Spatio-temporal analysis of rainfall rate for the prediction of slant path fade duration statistics," in IEEE Antennas and Propagation Society International Symposium, vol. 3, pp. 100--103, July 2001.
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INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.4 Distributed Systems
  C.4 PERFORMANCE OF SYSTEMS

General Terms:
Algorithms, Design

Keywords:
call admission control, fading channel, satellite networks