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Dynamic Channel Assignment Based on Carrier Interference Ratio Measurement
Cheng Jiang, Zhu Shihua,Dang Anhong
(Xi'an Jiaotong University, Xi'an 710049, China)
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Abstract: The interference adaptive dynamic channel assignment (IA-DCA) based on carrier interference ratio (CIR) measurementis studied. The characteristics of IA-DCA are investigated and the maximum system capacity of the scheme is derived. By simulations, the typical channel assignment schemes, fixed channel assignment (FCA), traffic adaptive dynamic channel assignment (TA-DCA) and IA-DCA, are compared and the results validate the analytical approach. Both the analysis and simulation show that the IA-DCA can increase the capacity of cellular system, while the capacity increase is correlativewith system CIR redundancy.
Keywords: dynamic channel assignment;interference measurement;cellular system;mobile communications