상세정보
학술지
Modeling of Adjacent Channel Interference in Heterogeneous Wireless Networks
- 발행일
- 201309
- 출처
- IEEE Communications Letters, v.17 no.9, pp.1774-1777
- ISSN
- 1089-7798
- 출판사
- IEEE
- 협약과제
- 13PR4500, 광대역 모바일 핫스팟용 추가 주파수 발굴을 위한 실측기반 무선채널 연구, 정영준
- 초록
- This letter proposes a new model for the aggregate adjacent channel interference (ACI) received from nearby terminal stations (TSs) of heterogeneous wireless networks. It is well known that lognormal distribution approximates the aggregate received signal, but we found that it does not perform well for ACI-modeling among coexisting TSs. We propose a weighted sum of lognormals-based approximation (WSLA) where the probability density function (PDF) of the aggregate ACI appears in the form of a weighted sum of lognormals. The closed-form downlink outage probabilities with both lognormal approximation and WSLA are also derived. Through simulations, we demonstrate that the proposed approximation outperforms the lognormal one. The WSLA can also be applied to a dual slope channel model and extended to model the aggregate interference in inter-cells or sensor networks. © 1997-2012 IEEE.
- KSP 제안 키워드
- Adjacent Channel Interference, Aggregate interference, Dual slope, Heterogeneous wireless networks, New model, Sensor networks, channel model, closed-form, lognormal approximation, lognormal distribution, probability density function (pdf)