Abstract:
본 발명은 라우팅 장치 및 이를 이용한 전송 경로 설정 방법에 관한 것이다. 이를 위하여 본 발명의 실시 예에 따른 라우팅 장치는 도착 가능한 노드들을 목적지로 하여 이웃 노드-목적지별 페로몬 값이 저장된 페로몬 테이블, 망에 인가되는 인공 개미들에 의해 수집된 정보를 기반으로 지연 품질의 통계 값을 저장하기 위한 지연 통계 모델, 트래픽 집중도 모델은 이웃 링크 별로 트래픽 량을 저장하기 위한 트래픽 집중도 모델을 구성하며, 외부로부터 패킷이 도착할 경우 트래픽 집중도 값과 페로몬 테이블 내 페로몬 값을 기반으로 패킷의 전송 경로를 결정하며, 결정된 전송 경로를 토대로 패킷을 전송한다.
Abstract:
PURPOSE: An ecosystem based energy saving routing device, a transmission path setting method, and an update method thereof are provided to accumulate pheromone on each node based on a measured value by measuring energy consumption rates based on an energy profile. CONSTITUTION: An energy statistics model(104) stores the statistics information of an energy consumption rate based on an energy profile in each destination generated by information collected by artificial ants. A pheromone table(106) is generated based on the statistics information of the energy consumption rate in the energy statistics model. The pheromone table stores pheromone information in a neighboring node and a destination. A transmission path setting unit(130) sets the transmission path of the packet based on information stored in the pheromone table, a delay statistics model, and the service demand quality value of the packet according to the arrival of the packet. [Reference numerals] (100) A-DCER logic; (102) Delay statistics model; (104) Energy statistics model; (106) Pheromone table; (110) A-DCER updating unit; (112) Delay statistics model updating unit; (114) Energy statistics model updating unit; (116) Pheromone table updating unit; (120) Ant processing unit; (130) Transmission path setting unit; (AA) Packet;
Abstract:
PURPOSE: A method for transmitting a bandwidth request message to a base station in a wireless broadband system, a terminal, and the base station are provided to transmit a bandwidth assignment request message from the terminal to the base station in order to control bandwidth assignment between terminals. CONSTITUTION: A terminal transmits a first bandwidth request message to a base station by using a first polling section(S503). The terminal senses a collision with a bandwidth request message of other terminals(S504). When the collision is sensed, the terminal transmits a second bandwidth request message to the base station by using the first polling section and a second polling section(S506). The first polling section is a multicast polling section. The second polling section is a broadcast polling section. [Reference numerals] (AA) Start; (BB) Step 1: Preparing bandwidth request; (CC) Step 2: Requesting a bandwidth; (DD,GG) No; (EE,FF) Yes; (HH) End; (S501) Receiving the competition section of ertPS(W_ert) and the size of a bandwidth request chance(S_TO) from an UL-MAP, UCD message; (S502) Calculating the size of a competition chance(N_TO = W_ert/S_TO) and replacing the calculated value as the backoff starting value of the ertPS; (S503) Transmitting a bandwidth request message; (S504) Collision sensed?; (S505) (truncated binary exponential backoff) starting to overcome a competition; (S506) Re-transmitting the bandwidth request message to each Multicast and broadcast polling section; (S507) Collision in both two sections?;
Abstract:
PURPOSE: A load equalizer device is provided to processes a request of a client according to a state grasp of a server through a work processing delay for server side, standby delay of a network, and a transmission delay of a network. CONSTITUTION: A server delay calculation unit(100) respectively calculates a server delay value through a network transmission delay to each server, a network waiting delay. And a work treatment delay about each server. A connection process unit(110) controls a load allocated to plurality of server based on a delay value of a each server calculated in the server delay calculation unit. A state grasping unit(120) checks the state about the server.
Abstract:
PURPOSE: A service overlay network-based IPTV individual broadcasting system and apparatus, and a method thereof are provided to register contents in an overlay network system and offer the contents to IPTV service subscribers. CONSTITUTION: An IPTV session control unit(210) establishes an IPTV session for a service overlay IPTV individual broadcasting service. An IPTV individual broadcasting management unit(230) establishes environment for the IPTV individual broadcasting service. The IPTV individual broadcasting management unit manages the execution of the IPTV individual broadcasting service. A contents processing information controller(220) searches and offers IPTV individual broadcasting contents.
Abstract:
본 발명은 전송 계층에서의 트래픽 통계 데이터만을 활용하여 간단하고 정확하게 트래픽의 애플리케이션을 식별하는 방법 및 장치에 관한 것이다. 본 발명의 트래픽 분류 방법은 플로우별로 수집된 패킷의 최소 패킷 크기, 최대 패킷 크기, 평균 패킷 크기 중 적어도 하나를 애플리케이션들의 참조 데이터와 비교하여 후보 애플리케이션을 선별하는 단계와, 상기 수집된 패킷에 대한 패킷 크기의 최빈값 집합을 상기 후보 애플리케이션의 참조 데이터와 비교하여 순서가 동일한 원소들이 미리 정해진 개수 이상인 애플리케이션으로서 상기 플로우를 식별하는 단계를 포함한다. 트래픽, 분류, 애플리케이션, 통계 데이터, 패킷 크기, 분포, 상관계수
Abstract:
PURPOSE: An available bandwidth measurement method using a packet train for preventing the performance degradation of network is provided to measure available bandwidth accurately. CONSTITUTION: An operation for transmitting a packet is repeatedly performed by setting transmission rate according to the increase rate of the packet interval distribution average value(S4-S8). In case the packet interval average of distribution value is not changed, the operation is repeatedly performed for transmitting the packet(S11). The operation is repeatedly operated until the difference value of the packet interval distribution median and packet interval average of distribution value is greater than error.