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Mitigation of inter-cell interference using geometrical information in mobile WiMAX system : 모바일 와이맥스 시스템에서 주변 셀의 신호 세기 정보를 이용한 인접 셀 간섭 감소 기법
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- Authors
- Issue Date
- 2007-03
- Citation
- 통신정보 합동학술대회(JCCI), 2007년 3월
- Keywords
- inter-cell interference ; mobile WiMAX
- Abstract
- The Mobile-Worldwide Interoperability for Microwave Access (m-WiMAX) can provide wireless services
at high rates even in high mobility. However, the performance of m-WiMAX can seriously be degraded near
the cell boundary due to inter-cell interference (ICI). To mitigate the ICI problem in the downlink of m-
WiMAX, we consider combined use of ICI mitigation techniques with macro beamforming to maximize the
user capacity in response to the change of interference environment. The proposed scheme optimally
determines the configuration of ICI mitigation techniques using the geometrical information (e.g., the longterm
received signal strength of neighboring cells). Simulation results show that the proposed scheme can
accurately estimate the user capacity and thus improve the capacity of users near the cell boundary.
- Language
- English
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