公开(公告)号：KR101662687B1

公开(公告)日：2016-10-05

申请号：KR1020150101218

申请日：2015-07-16

Applicant: 아주대학교산학협력단

Inventor： 노병희 ,  김보성

IPC: H04W74/02 ,  H04W74/00 ,  H04W72/02 ,  H04W52/02

CPC classification number: Y02D70/00

Abstract: 본발명은인지무선기반센서네트워크(CRSN, cognitive radio enabled sensor network)에서의스펙트럼접근시 에너지효율성을향상시키기위한장치및 방법에관한것이다. 이를위하여본 발명에따른본 발명에따른인지무선기반센서네트워크에서의데이터전송방법은제어채널을이용하여제어메시지를송수신하고데이터채널을이용하여데이터를송수신하는각 부사용자들이채널상태를확인하되, 상기부 사용자는상태보고를할 채널(CRF, Channel For Report)과예약하여사용할채널(CFU, Channel For Use)의상태를확인하는감지단계, 상기부 사용자들이확인한채널상태를상기제어채널을이용하여상기부 사용자들간에송수신하는보고단계, 상기부 사용자들이상기채널상태에따라사용할채널을예약하는경쟁단계; 및상기부 사용자들이상기예약한채널에서데이터를전송하는데이터전송단계를포함한다. 본발명에따르면, 전력공급이제한적인다중채널환경의 CRSN에서 MAC 프로토콜동작시에에너지효율성을향상시킬수 있는효과가있다.

公开(公告)号：KR101292071B1

公开(公告)日：2013-08-01

申请号：KR1020120102406

申请日：2012-09-14

Applicant: 엘아이지넥스원 주식회사 ,  아주대학교산학협력단

Inventor： 박수범 ,  김보성 ,  권세훈 ,  노병희

IPC: H04W16/22

CPC classification number: H04W16/22 ,  H04W74/0816

Abstract: PURPOSE: A simulation method based on modeling and simulation framework in a distributed recognition wireless network is provided to offer modeling and simulation framework capable of reflecting performance element of recognition wireless technology in a distributed recognition wireless network. CONSTITUTION: A main user node generates virtual traffic with respect to a corresponding spectral range (S410). The main user node transmits the virtual traffic to the corresponding spectral range. A sub user node selects one spectral range in the plurality of spectral ranges (S420). The sub user node confirms an idle state of the selected spectral range according to detection of the virtual traffic transmitted to the selected spectral range (S440). If the selected spectral range is confirmed to be the idle state, the sub user node transmits a packet through the selected spectral range (S460). [Reference numerals] (AA) Start; (BB) End; (S410) Transmit to a spectral range by generating virtual traffic in a main user node; (S420) Select the spectral range in the spectral range; (S430) Sense a presence of the virtual traffic of the spectral range selected in a sub user node; (S440) Is the spectral range idle?; (S450) Select a spectral access protocol; (S460) Transmit a packet to the selected spectral range using selected spectral access protocol

Abstract translation: 目的：提出一种基于分布式识别无线网络建模与仿真框架的仿真方法，提供能够反映分布式识别无线网络识别无线技术性能要素的建模与仿真框架。 构成：主用户节点相对于相应的光谱范围产生虚拟通信量（S410）。 主用户节点将虚拟业务传输到相应的光谱范围。 子用户节点选择多个光谱范围中的一个光谱范围（S420）。 子用户节点根据发送到所选频谱范围的虚拟业务的检测确认所选频谱范围的空闲状态（S440）。 如果选择的频谱范围被确认为空闲状态，则子用户节点通过所选择的频谱范围发送分组（S460）。 （附图标记）（AA）开始; （BB）结束; （S410）通过在主用户节点中产生虚拟业务来发送到频谱范围; （S420）选择光谱范围内的光谱范围; （S430）检测在子用户节点中选择的频谱范围的虚拟业务的存在; （S440）光谱范围是否空闲？ （S450）选择光谱接入协议; （S460）使用所选频谱访问协议将分组发送到所选择的频谱范围