PSO METHOD AND SYSTEM FOR SENSING INTERVAL DECISION AND PSO-BASED DYNAMIC RESOURCE ALLOCATION IN MULTI-CHANNEL COGNITIVE RADIO NETWORK

PSO METHOD AND SYSTEM FOR SENSING INTERVAL DECISION AND PSO-BASED DYNAMIC RESOURCE ALLOCATION IN MULTI-CHANNEL COGNITIVE RADIO NETWORK

The present invention provides a method and a system for setting sensing intervals and allocating particle swarm optimization (PSO)-based dynamic resources in a cognitive radio network using multiple channels which satisfy energy saving requirements of member nodes. According to an embodiment of the...

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Hauptverfasser: SUNGJEEN JANG, SANGJO YOO
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Sprache:eng ; kor
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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SANGJO YOO
description The present invention provides a method and a system for setting sensing intervals and allocating particle swarm optimization (PSO)-based dynamic resources in a cognitive radio network using multiple channels which satisfy energy saving requirements of member nodes. According to an embodiment of the present invention, the method for allocating PSO-based dynamic resources comprises: a step where a cluster header of a cluster consisting of cognitive radio users in a cognitive radio network uses idle time statistics for each channel and priority user protection conditions to determine sensing intervals for each channel and build a frame structure for each channel by usable channel information collection obtained from member nodes belonging to the cluster; and a step of using particle swarm optimization to dynamically allocate channels to be used by the member nodes and data slots. 다중 채널을 사용하는 인지 무선 네트워크에서 센싱 간격의 설정 및 PSO 기반의 동적 자원 할당 방법 및 시스템이 제시된다. 일 실시예에 따른 PSO 기반의 동적 자원 할당 방법은, 인지 무선 네트워크에서 인지 무선 사용자들로 이루어진 클러스터의 클러스터 헤더가 상기 클러스터에 속한 멤버 노드들로부터 얻은 사용 가능한 채널 정보 수집을 통해 각 채널별 유휴시간통계 및 우선사용자 보호조건을 사용하여 각 채널별 센싱 간격을 결정하고 채널별 프레임 구조를 구성하는 단계; 및 PSO(Particle Swarm Optimization)를 사용하여 각 상기 멤버 노드들이 사용할 채널 및 데이터 슬롯을 동적으로 할당하는 단계를 포함하여 이루어질 수 있다.
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According to an embodiment of the present invention, the method for allocating PSO-based dynamic resources comprises: a step where a cluster header of a cluster consisting of cognitive radio users in a cognitive radio network uses idle time statistics for each channel and priority user protection conditions to determine sensing intervals for each channel and build a frame structure for each channel by usable channel information collection obtained from member nodes belonging to the cluster; and a step of using particle swarm optimization to dynamically allocate channels to be used by the member nodes and data slots. 다중 채널을 사용하는 인지 무선 네트워크에서 센싱 간격의 설정 및 PSO 기반의 동적 자원 할당 방법 및 시스템이 제시된다. 일 실시예에 따른 PSO 기반의 동적 자원 할당 방법은, 인지 무선 네트워크에서 인지 무선 사용자들로 이루어진 클러스터의 클러스터 헤더가 상기 클러스터에 속한 멤버 노드들로부터 얻은 사용 가능한 채널 정보 수집을 통해 각 채널별 유휴시간통계 및 우선사용자 보호조건을 사용하여 각 채널별 센싱 간격을 결정하고 채널별 프레임 구조를 구성하는 단계; 및 PSO(Particle Swarm Optimization)를 사용하여 각 상기 멤버 노드들이 사용할 채널 및 데이터 슬롯을 동적으로 할당하는 단계를 포함하여 이루어질 수 있다.</abstract><oa>free_for_read</oa></addata></record>
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
title PSO METHOD AND SYSTEM FOR SENSING INTERVAL DECISION AND PSO-BASED DYNAMIC RESOURCE ALLOCATION IN MULTI-CHANNEL COGNITIVE RADIO NETWORK
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