公开(公告)号：KR1020130037049A

公开(公告)日：2013-04-15

申请号：KR1020110101370

申请日：2011-10-05

Applicant: 목포대학교산학협력단

Inventor： 김영주 ,  표세준 ,  강일우 ,  이성로 ,  이연우 ,  정민아 ,  허경 ,  엄두섭 ,  김진우

IPC: H04B7/14 ,  H04W84/18 ,  H04W28/26 ,  H04L29/06

CPC classification number: H04B7/15542 ,  H04B7/2606 ,  H04L2001/0097 ,  H04W84/047

Abstract: PURPOSE: An adaptable relay communication method for an UWB(Ultra-WideBand) link is provided to improve QoS(Quality of Service) and reception rates by reserving relay resources according to a QoS standard. CONSTITUTION: When a MAS(Medium Access Slot) is able to reserve S-R and MAS R-T, a reservation host node transmits a relay acceptance reservation code for the MAS R-T to a reservation target node, a relay request reservation reason code to a relay node, and a relay notification reservation reason code to the reservation target node. When the relay acceptance reservation code is received from the relay node and the reservation target node, the reservation host node transmits data through the relay node.

Abstract translation: 目的：提供适用于UWB（超宽带）链路的中继通信方法，通过根据QoS标准保留中继资源来提高QoS（服务质量）和接收速率。 构成：当MAS（媒体接入时隙）能够保留SR和MAS RT时，预约主机节点向保留目标节点发送用于MAS RT的中继接受预约码，向中继节点发送中继请求预留原因码， 以及中继通知预约原因代码。 当从中继节点和预留目标节点接收到中继接受预约码时，预约主机节点通过中继节点发送数据。

公开(公告)号：KR1020130022790A

公开(公告)日：2013-03-07

申请号：KR1020110085702

申请日：2011-08-26

Applicant: 목포대학교산학협력단

Inventor： 김경성 ,  문민우 ,  이연우 ,  표세준 ,  강일우 ,  박선 ,  이성로

IPC: H04W52/02 ,  H04W84/18

CPC classification number: Y02D70/00 ,  H04W52/0219 ,  H04W52/0222 ,  H04W84/18

Abstract: PURPOSE: A sensor network power saving method is provided to improve energy efficiency in a sensor network by managing data packets of a sensor node. CONSTITUTION: When a sensing time is arrived based on a sensing period, a peripheral environment is sensed. When a receiving time is arrived based on a receiving period, an RF(Radio Frequency) device is turned on and receives a state report packet from a child node. The RF device is turned off. When a transmission time is arrived according to a transmission period, the RF device is turned on and transmits sensing information for the peripheral environment to the state report packet of the child node. The RF device is turned off.

Abstract translation: 目的：提供传感器网络节能方法，通过管理传感器节点的数据包来提高传感器网络的能源效率。 构成：当基于感测周期到达感测时间时，感测到外围环境。 当基于接收周期到达接收时间时，RF（射频）设备被接通，并从子节点接收状态报告分组。 RF设备关闭。 当根据传输周期到达传输时间时，RF设备被接通，并将用于外围环境的感测信息发送到子节点的状态报告分组。 RF设备关闭。

公开(公告)号：KR1020130022787A

公开(公告)日：2013-03-07

申请号：KR1020110085698

申请日：2011-08-26

Applicant: 목포대학교산학협력단

Inventor： 강일우 ,  표세준 ,  최지은 ,  조용옥 ,  김경성 ,  문민우 ,  이성로

IPC: H04W36/02 ,  H04L12/56 ,  H04L29/06

CPC classification number: H04W36/023 ,  H04L12/56 ,  H04L29/06

Abstract: PURPOSE: A packet forwarding priority guarantee plan for improving a TCP(Transmission Control Protocol) in a mobile IP(Internet Protocol) packet buffering method is provided to guarantee a packet forwarding priority in a RED(Random Early Detection) buffer management method of a congested base station. CONSTITUTION: When packets of a portable terminal are moved to a network of a congested base station by using a smooth handoff method combined with a base station packet buffering method, the stored packets are displayed as priority packets. The priority packets are excluded from discarded targets in a RED buffer management method of the crowded base station. Loss packets are stored in a previous base station. The TCP performance of the portable terminal is improved in a mobile IP packet buffering method for marine telematics including a packet buffering method.

Abstract translation: 目的：提供用于改进移动IP（因特网协议）分组缓冲方法中的TCP（传输控制协议）的分组转发优先权保证计划，以确保拥塞的RED（随机早期检测）缓冲器管理方法中的分组转发优先级 基站。 构成：通过使用与基站分组缓存方法结合的平滑切换方法将便携式终端的分组移动到拥塞基站的网络时，存储的分组被显示为优先分组。 在拥挤的基站的RED缓冲器管理方法中，将优先级分组从丢弃的目标中排除。 丢失分组被存储在先前的基站中。 在包括分组缓冲方法的海洋远程信息处理的移动IP分组缓冲方法中改进了便携式终端的TCP性能。

公开(公告)号：KR1020130022526A

公开(公告)日：2013-03-07

申请号：KR1020110085107

申请日：2011-08-25

Applicant: 목포대학교산학협력단

Inventor： 정다해 ,  강승구 ,  윤석호 ,  이연우 ,  표세준 ,  강일우 ,  이성로

IPC: H04L27/26

CPC classification number: H04L27/2659 ,  H04L27/2675

Abstract: PURPOSE: A signum function based frequency offset estimation method is provided to reliable estimation performance in various noise environments. CONSTITUTION: Receiving reception signal(S110), a complex sign signal(S120) is obtained from the reception signal. Correlation between samples is calculated using a correlation function(S130), a frequency offset estimation value(160) is calculated by performing angle calculation(S140) on the correlation. At this time, a predetermined constant is multiplied with the angle calculation result(S150). [Reference numerals] (S110) Reception signal; (S120) Sign signal; (S130) Correlation function; (S140) Angle calculation; (S160) Estimation value

Abstract translation: 目的：提供一种基于信号功能的频偏估计方法，可在各种噪声环境下提供可靠的估计性能。 构成：从接收信号获得接收信号（S110），复合信号（S120）。 使用相关函数计算样本之间的相关性（S130），通过对相关性进行角度计算（S140）来计算频率偏移估计值（160）。 此时，将预定常数与角度计算结果相乘（S150）。 （参考号）（S110）接收信号; （S120）标志信号; （S130）相关函数; （S140）角度计算; （S160）估计值

公开(公告)号：KR1020120048367A

公开(公告)日：2012-05-15

申请号：KR1020100109966

申请日：2010-11-05

Applicant: 목포대학교산학협력단

Inventor： 이장재 ,  김기영 ,  표세준 ,  강일우 ,  이성로

IPC: G01S11/06 ,  G01R29/26

Abstract: PURPOSE: A wireless indoor location measuring method based on KNN(k-nearest Neighbor) and PCM(Possibilistic C-Mean) is provided to form a wireless fingerprint type database by measuring a signal to noise ratio from several APs. CONSTITUTION: The first electric wave feature data is stored in a database with a wireless fingerprint type(S110). k reference points are selected by using KNN(S120). A group of the first electric wave feature data of the k reference points is formed(S130). A group of a location coordinate of the k reference points is formed(S140). A group including the reference points included in the first electric wave feature data based group and the reference point location coordinate based group is formed(S150). A group with the minimum distance square value of a group central vector and the first electric wave feature data is selected(S160). The average of the location coordinate of the reference points belonging to the selected group is produced. The location of a terminal is estimated(S170).

Abstract translation: 目的：提供一种基于KNN（k-最近邻）和PCM（可能性C均值）的无线室内位置测量方法，通过测量多个AP的信噪比来形成无线指纹类型数据库。 规定：第一电波特征数据存储在无线指纹类型的数据库中（S110）。 使用KNN（S120）选择k个参考点。 形成一组k个基准点的第一电波特征数据（S130）。 形成一组k个基准点的位置坐标（S140）。 形成包括在基于第一电波特征数据的组和基准点位置坐标组中的参考点的组（S150）。 选择具有组中心矢量的最小距离平方值和第一电波特征数据的组（S160）。 产生属于所选组的参考点的位置坐标的平均值。 估计终端的位置（S170）。