본 논문에서는 ad hoc 네트워크의 성능 향상을 위해서 두개의 네트워크 인터페이스를 갖는 이질적인 노드를 활용하여 구성한 계층적인 ad hoc 네트워크(HANA)를 소개한다. HANA 는 두 계층으로 구성되며, 하위계층을 구성하는 노드(TN)들은 ad hoc 네트워크의 대표적 라우팅 프로토콜인 AODV를 수행하고, 상위계층을 구성하는 백본 노드(BN)는 두개의 네트워크 인터페이스를 갖고 자동 구성(auto-configuration)을 통해서 토폴로지 등 네트워크를 초기화한다. 또한, 본 논문에서는 HANA 구조를 효율적으로 활용하기 위해서 상위계층에서 운용할 라우팅 프로토콜(Extended-AODV)을 제안한다. BN 은 하위계층의 노드들이 발생시키는 AODV 메시지를 통해서 자신이 관할하는 지역에 있는 TN노드의 정보를 얻어내며, 확장된 AODV 메시지를 통해서 BN 상호간 정보를 교환하여 Proactive한 라우팅 정보를 수집한다.
KSP Keywords
Ad hoc, Auto-configuration
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