본 논문에서는 3.1 GHz에서 10.6 GHz 주파수 대역을 사용하면서 실내 및 실외 통신에 적용되는 초 광대역(UWB) 시스템이 OFDM(Orthogonal Frequency Division Multiplexing)을 근간으로 한 2.3 GHz 대 WiBro(Wireless Broad-band )시스템에 미치는 간섭 영향에 대해 분석하였다. 최악의 상황을 고려하여 단일 UWB 간섭의 경우는 최소결합손실(MCL) 방법으로 간섭분석을 수행하였고, 다중 UWB 간섭인 경우는 실제 상황을 고려한 간섭 시나리오를 바탕으로 몬테칼로(MC) 방법으로 간섭 시뮬레이션을 수행하였다. 분석 및 시뮬레이션 결과 두 시스템의 양립성을 보장하기 위해 단일 간섭 원 과 희생(victim) 수신기 사이의 이격 거리는 34.4m 이상이 요구되었다. 또한, 다중 UWB 간섭 원 인 경우에 WiBro 단말기의 최소 throughput 손실을 보장하기 위해 허용할 수 있는 UWB 송신전력 레벨은 약 - 81 dBm / MHz 이하로 요구되었다.
KSP Keywords
2.3 GHz, 6 GHz, Broad band, Orthogonal frequency division Multiplexing(OFDM)
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