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Link Level Modeling For High Speed Wireless Communication System Simulations

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3 Author(s)
Yi Zhang ; Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun. ; Jian Gu ; Dacheng Yang

The interface between link and system level simulations is important for accurate evaluation of wireless communication systems. Two popular methods, modified actual value interface (AVI) and quasi-static method (QSM) cannot accurately model the Es/Nt variation brought by fading channel and link adaptation. Es/N t variation brings link performance loss and it is important to model its effect to system performance. A new method is proposed to characterize Es/Nt variation with standard deviation of equivalent Es/Nt in this paper. Subslot is also used as the minimal unit of Es/Nt calculation to achieve more accurate modeling for high velocity. Link level results show the importance of modeling Es/Nt variation, for example, link performance loss can be as high as 2.5 dB when standard deviation of equivalent per-subslot Es/Nt is 5 dB. Furthermore, Simulation results verify that the proposed method can accurately model Es /Nt variation for system level simulations

Published in:

TENCON 2006. 2006 IEEE Region 10 Conference

Date of Conference:

14-17 Nov. 2006