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Mobility effects on base station selection in wireless CDMA networks

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2 Author(s)
Sharma, S. ; Dept. of Electr. & Comput. Eng., George Mason Univ., Fairfax, VA, USA ; Jabbari, B.

This paper presents an examination of the effects of specific mobility parameters on handoff in wireless CDMA systems. Current standards allow multiple simultaneous base station connections. This set of active base stations indicates quality of the transmission as well as load distribution on the network. The movement of a user within the network has a significant impact on the behavior of the active set. Simulations of a handoff algorithm for next generation systems are performed using realistic variables. The effects of specific mobility parameters are shown by generating a set of trajectories to a common intersection point. Handoff measures are compared among different paths within this trajectory set. Simulations and analysis demonstrate that mobility parameters have a direct influence on connectivity and transmission quality. It is shown that the angle of approach to a specific location significantly affects which base stations the mobile is connected to at that location. More precisely, the distance from base stations along this path affects the selection of base stations for the active set.

Published in:

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th  (Volume:6 )

Date of Conference:

26-29 Sept. 2004