SELECTION OF HANDOFF METHOD FOR SERVING AIR TRAFFIC CONTROL COMMUNICATION IN LEO SATELLITE CONSTELLATION

Yıl 2017, Cilt: 5 Sayı: 1, 379 - 387, 30.06.2017

Djamel Benatia Abdelali Achachi Houcine Oudira

https://doi.org/10.17261/Pressacademia.2017.614

Öz

Due to the
satellite motion with respect to the earth’ s surface and the aircraft’s
mobility, it is required to handover frequently in the process of communicating
, In This paper ,assuming that the aircraft’s 
location and speed can be determined , we  proposes a suitable study for managing
handover  in satellite
constellations  for serving air traffic
communication . The main objective of This study is  selecting 
the  best scheme which reduce
significantly contact failure Probability ,this 
techniques  are: non priority,
priority, and queuing handoff schemes ,in this paper  we are interested only in schemes that
prioritize handover request in particular handoff queuing schemes. Channel
allocation strategy (FCA) is employed, and the simulation results obtained
concern: call blocking probability, handover failure probability, and average
waiting time in the queue. Also simulation results are compared to choose the
best one which reduces the contacts failureownership ratios. That supports more
firm specific information is incorporated into stock prices as the ratio of
foreign ownership increases.  

Anahtar Kelimeler

Air traffic control, handoff, satellite constelltion, FCA

Kaynakça

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