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Performance evaluation of wireless networks based on chirp spread spectrum

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3 Author(s)
Xiaowei Wang ; Sch. of Mechatron. & Autom., Shanghai Univ., Shanghai ; Xin Li ; Minrui Fei

In this paper the performance improvement of wireless networks caused by chirp spread spectrum (CSS) as PHY is addressed. Firstly, the bit error rate function is firstly derived theoretically. Then an OPNET modulation curve is created through EMA (external model access) programming using the BER result. By doing this, CSS is introduced into OPNET as an alternate modulation method. Furthermore, simulations are designed and carried out in OPNET, taking advantage of the new modulation curve. Simulation results show that networks using CSS have lower delay owing to the feature of CSS. This advantage becomes more evident when traffic increases under real-time circumstances.

Published in:

Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on

Date of Conference:

10-12 Nov. 2008