Abstract:
The present invention relates to a wireless communication network technology, and more particularly, to a Quality of Service (QoS) implementation method for improving Link Quality features selectively offered in MIL-STD-188-220 standard and an ambiguous path quality measurement method by providing DTR (Delay, Throughput and Reliability) properties to select an optimal path which implements the QoS a service requires in a multipath. [Reference numerals] (AA) Start; (B1,B2,B3,B4) No; (C1,C2,C3,C4) Yes; (DD) End; (S200) Receive a frame at an upper layer; (S210) Does a multipath exist?; (S220) Confirm DTR bit setting; (S231) Select a path having low average delay; (S241) Select a path having high throughput; (S251) Select a path having high reliability; (S260) Select a path by quality comparison; (S270) Configure an intranet frame; (S280) Transmit the frame to a lower layer
Abstract:
A military information visualization system which uses a web-based virtual space according to the present invention includes: a virtual visualization space management module (102) which grasps the location of XML file type information on a map and builds an information image about an information subject similarity, an information object relationship, and an information classification type into a web browser-based virtual visualization three-dimensional space (A); a time image management module (108) which expresses XML file type information in an animation in which a change is performed according to time progress; and a change management module (111) which zooms in when selecting a level-of-detail (LOD) function while converting the XML file type information from a two-dimensional graph into a three-dimensional graph or reversely. The military information visualization system provides a zoom-in which uses the level-of-detail (LOD) function with various relationship expressions which a military document has through the three-dimensional virtual space on an internet web browser and, specifically, remarkably improves information readability and space utilization by expressing enemy movement information, which is expressed in the military document, in a position on the map, the 2D or 3D graph, and the animation according to the time progress. [Reference numerals] (100) Military information visualization system;(101) Data input;(102) Virtual visualization space management module;(103) Virtual visualization space composition component;(104) Information subject similarity display component;(105) Information relationship display component;(106) Information classification display component;(107) Related map display component;(108) Time image management module;(109) Related image display component;(110) Hourly variation expression component;(111) Conversion management module;(112) 2D/3D conversion component;(113) LOD management component;(114) Web browser screen display;(115) Web browser UI function
Abstract:
A QoS performance improving method of MIL-STD-188-220 wireless network communication protocol and a data frame service node are disclosed. According to embodiments of the present invention, the QoS performance improving method applies a connection function to a plurality of data frames requesting responses in an Ad-Hoc wireless communication network and transmits the response by composing the response with one block response (Block Ack) frame in order to improve the whole performance of the wireless communication network because the wireless communication network treats the more data amount within the predetermined time or reduces the data transmission amount of the data frame requesting the response. [Reference numerals] (AA) Start;(BB) No;(CC) Yes;(DD) End;(S20) Connect multiple frames demanding a response and having the same receiving destination;(S21) Transmit those frames connected;(S22) Reception station ?;(S23) Organize a block response frame;(S24) Stay during a response delay time;(S25) Transmit the block response frame to the receiving destination;(S26) Dash until the block response frame to be completely transmitted;(S27) Operate the same network access scheduler
Abstract:
PURPOSE: A network simulator and network simulation method thereof are provided to connect to a plurality of real apparatuses using interfaces which numbers are smaller than the number of the real apparatuses. CONSTITUTION: An interface(330) connects to a hub(320) where a plurality of a first real apparatuses(200) are connected using communication lines(310) which numbers are smaller than the number of the first real apparatuses. A packet converter(350) connects to the interface. The packet conversion unit converts the packet of the first real apparatus into a simulation packet. An interworking gateway(370) connects to each packet conversion unit. A virtual node(360) transmits and receives the simulation packets from the interworking gateway using a remote interrupt unit.
Abstract:
PURPOSE: A time slot management method and system thereof according to transfer cycle are provided to variably configure time slot in consideration of transmission cycles and to efficiently transmit various information about transmission cycles. CONSTITUTION: A controller controls a map for allocating radio resource timeslots(S210). A terminal subscribes TDMA(Time Division Multiple Access) network(S220). The terminal reports a transfer cycle to district network center(S230). The controller reports the searched timeslot to a timeslot manager(S240). The timeslot manager decides the time slot about each terminal(S250).
Abstract:
MIL-STD-188-220 무선 네트워크 통신 프로토콜의 Qos 성능 향상 방법 및 그 데이터 프레임 서비스 노드가 개시된다. 본 발명의 실시예들에 의하면, Ad-Hoc 무선통신망에서 응답을 요구하는 다수의 데이터 프레임들에 대해서도 연결(concatenation) 기능을 적용할 수 있도록 구현하고, 그에 대한 응답을 하나의 블록 응답(Block Ack) 프레임으로 구성하여 전송해줌으로써, 응답을 요구하는 데이터 프레임의 데이터 전송량이 감소될뿐만 아니라 주어진 시간내에 더 많은 데이터량을 처리할 수 있으므로 무선통신 네트워크의 전체 성능이 향상된다.