公开(公告)号：KR1020130022788A

公开(公告)日：2013-03-07

申请号：KR1020110085700

申请日：2011-08-26

Applicant: 목포대학교산학협력단

Inventor： 김경성 ,  문민우 ,  이연우 ,  조용옥 ,  박선 ,  박희만 ,  이성로

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

CPC classification number: H04W36/023 ,  H04L47/29 ,  H04L47/32

Abstract: PURPOSE: A packet forwarding control method for improving a TCP(Transmission Control Protocol) performance is provided to allow a user to use a smooth handoff method and a RED(Random Early Detection) buffer management method in a mobile IP(Internet Protocol) path optimization process. CONSTITUTION: A portable terminal forwards packets received from a terminal corresponding to a first FA(Foreign Agent) to a second FA via a buffer of a base station. The corresponding terminal does not catch an access point of the portable terminal. The base station manages the first FA. The base station determines a forwarding process or a discarding process for packets based on RED state information.

Abstract translation: 目的：提供一种用于改善TCP（传输控制协议）性能的分组转发控制方法，以允许用户在移动IP（因特网协议）路径优化中使用平滑切换方法和RED（随机早期检测）缓冲器管理方法 处理。 构成：便携式终端经由基站的缓冲器将从与第一FA（外部代理）对应的终端接收的分组转发到第二FA。 相应的终端没有抓住便携式终端的接入点。 基站管理第一FA。 基站基于RED状态信息确定分组的转发处理或丢弃处理。

公开(公告)号：KR1020130011358A

公开(公告)日：2013-01-30

申请号：KR1020110072459

申请日：2011-07-21

Applicant: 목포대학교산학협력단

Inventor： 정민아 ,  문민우 ,  조용옥 ,  최지은 ,  박재희 ,  이연우 ,  이성로

IPC: H04W52/00 ,  H04W84/18 ,  H04W56/00 ,  H04L29/08

CPC classification number: Y02D70/00 ,  H04W52/0261 ,  H04W56/00 ,  H04W84/18

Abstract: PURPOSE: A method for improving the delay time performance improvement and energy efficiency of asynchronous duty-cycle MAC in a vessel sensor network environment is provided to improve a transmission delay time by performing a temporary synchronization method while maintaining the energy efficiency of asynchronous MAC. CONSTITUTION: Energy efficiency is maintained through an SNC(Synchronize on each Neighbor's Cycle) and an STC(Synchronize on Tunneling Cycle) function by using a cross layer method with a network layer. A transmission delay time is improved by performing a temporary synchronization method while maintaining the energy efficiency. QoS(Quality of Service) on a multi hop path is guaranteed.

Abstract translation: 目的：提供一种在船舶传感器网络环境中改进异步占空比MAC的延迟时间性能改进和能效的方法，通过执行临时同步方法来提高传输延迟时间，同时保持异步MAC的能量效率。 构成：通过使用具有网络层的交叉层方法，通过SNC（在每个邻居周期上同步）和STC（隧道周期同步）功能来维持能量效率。 通过在保持能量效率的同时执行临时同步方法来提高传输延迟时间。 多跳路径上的QoS（服务质量）得到保证。

公开(公告)号：KR1020140046600A

公开(公告)日：2014-04-21

申请号：KR1020120111446

申请日：2012-10-08

Applicant: 목포대학교산학협력단

Inventor： 이성로 ,  조용옥 ,  박진관 ,  박상혁 ,  맹세영 ,  이연우

IPC: H04B7/14

CPC classification number: H04B7/15592

Abstract: The present invention relates to an M2M communication method using relay-based cooperative communication of WiMedia UWB. The M2M communication method using relay-based cooperative communication of WiMedia UWB can process massive data by solving: security problems between M2Ms; communication disconnection problems which are caused by an obstacle when data is transmitted; and the problems of short-haul communication of the UWB, by using the WiMedia UWB in an M2M service. Moreover, the M2M communication method using relay-based cooperative communication of WiMedia UWB can improve processing speed. [Reference numerals] (AA) Speed and refueling rate (state); (BB) Various kinds of sensors; (CC) Position tracking; (DD) Wireless LAN

Abstract translation: 本发明涉及使用WiMedia UWB的基于中继的协作通信的M2M通信方法。 使用WiMedia UWB的基于中继的协作通信的M2M通信方法可以通过解决M2M之间的安全问题来处理海量数据; 数据传输时由障碍物引起的通信断线问题; 以及通过在M2M服务中使用WiMedia UWB，UWB的短距离通信的问题。 此外，使用WiMedia UWB的基于中继的协作通信的M2M通信方法可以提高处理速度。 （附图标记）（AA）速度和加油速率（状态）; （BB）各种传感器; （CC）位置跟踪; （DD）无线局域网

公开(公告)号：KR1020140046536A

公开(公告)日：2014-04-21

申请号：KR1020120110294

申请日：2012-10-04

Applicant: 목포대학교산학협력단

Inventor： 이성로 ,  조용옥 ,  박진관 ,  김범무 ,  전성민 ,  로네쉬샤르마 ,  투샤케샤브

IPC: H04L29/06 ,  H04L1/00

CPC classification number: H04W4/38 ,  H04W76/18 ,  H04W80/04 ,  H04W88/16

Abstract: An algorithm of the present invention enables practical protocol and transmission technique design for maximizing transmission rate of an extended S&S network by researching an S&S network model which is extended from an ad-hoc network and coupled to a backbone network, and comparing the researched S&S network model with asymptotic performance results of point to point communications in a conventional hybrid wireless network. Moreover, the algorithm further enables efficient management of wireless resources and design of an MAC protocol and routing with lower complexity as compared with a case that only an ad-hoc network was used. Specifically, the algorithm compares how an S&S transmission capacity result changes according to a demanded service quality by considering a machine to machine communications which requires a service quality such as different delay time or a minimum message transmission success rate, and satisfies a maximum S&S transmission rate based on parameter optimization and a cross-layer cooperative method when the service quality exists. [Reference numerals] (AA) Start; (BB,DD,FF) No; (CC,EE,GG) Yes; (HH) End

Abstract translation: 本发明的算法实现了实用的协议和传输技术设计，通过研究从ad-hoc网络扩展并耦合到骨干网络的S＆S网络模型，最大化扩展S＆S网络的传输速率，并比较研究的S＆S网络 在常规混合无线网络中点对点通信的渐近性能结果的模型。 此外，与仅使用自组织网络的情况相比，该算法进一步实现了无线资源的有效管理和MAC协议的设计以及具有较低复杂度的路由。 具体来说，该算法通过考虑需要诸如不同延迟时间或最小消息传输成功率的服务质量的机器到机器通信来比较S＆S传输容量结果如何根据所要求的服务质量而改变，并且满足最大S＆S传输速率 基于参数优化和服务质量存在的跨层协作方法。 （附图标记）（AA）开始; （BB，DD，FF）否; （CC，EE，GG）是; （HH）结束

公开(公告)号：KR1020140045011A

公开(公告)日：2014-04-16

申请号：KR1020120110832

申请日：2012-10-05

Applicant: 목포대학교산학협력단

Inventor： 이성로 ,  이연우 ,  조용옥 ,  박진관 ,  맹세영 ,  박상혁

IPC: H04W84/10

CPC classification number: H04W84/10 ,  H04W4/70 ,  H04W4/80

Abstract: The present invention relates to a method of configuring a Zigbee-based integrated information network comprising a ship, a Zigbee sensor, a server, a reservation subject node (S node), a reservation target node (T node), and a relay node (R node), using an M2M wireless network. The method comprises the steps of: configuring the ship itself as one network; acquiring information around the ship using the Zigbee sensor; delivering the acquired information to the server via the S node and the T node; storing the information delivered to the server in a database; and displaying the information stored in the database. According to the present invention, it is possible to configure the ship itself as a network not a specific region within the ship by using Zigbee utilizing an M2M wireless network in a marine ship, thereby allowing automatic connections to the ship network when devices approach the domain of the network. Thus, rapid data transmission can be achieved in the ship network. Additionally, network communication quality can be enhanced since a location-related communication restriction in the ship is reduced, and losses during data transmission can be reduced since the data transmission is switched to a relay node if a communication condition between nodes is not good.

Abstract translation: 本发明涉及一种配置基于ZigBee的综合信息网络的方法，该网络包括船舶，Zigbee传感器，服务器，预约主体节点（S节点），预留目标节点（T节点）和中继节点 R节点），使用M2M无线网络。 该方法包括以下步骤：将船舶本身配置为一个网络; 使用Zigbee传感器获取船上的信息; 通过S节点和T节点将所获取的信息传送到服务器; 将传递到服务器的信息存储在数据库中; 并显示存储在数据库中的信息。 根据本发明，通过在船舶中使用利用M2M无线网络的Zigbee，可以将船本身作为网络而不是船舶内的特定区域，从而当设备接近域时，允许自动连接到船舶网络 的网络。 因此，可以在船舶网络中实现快速的数据传输。 此外，由于船上的位置相关的通信限制被减少，因此可以减少网络通信质量，并且如果节点之间的通信条件不好，则数据传输被切换到中继节点之后可以减少数据传输期间的损耗。

公开(公告)号：KR1020140044218A

公开(公告)日：2014-04-14

申请号：KR1020120110298

申请日：2012-10-04

Applicant: 목포대학교산학협력단

Inventor： 채근홍 ,  이영포 ,  윤석호 ,  조용옥 ,  김연옥 ,  이연우 ,  이성로

IPC: H04J11/00

CPC classification number: H04L25/0224

Abstract: The present invention relates to a method of estimating a frequency offset generated in an OFDM system. By using a maximum likelihood estimate theory in estimating frequency offset, estimate can be carried out in an irregular noise state and a wider estimate range compared to the estimate method according to an existing technique is provided. [Reference numerals] (AA) Start; (BB) End; (S100) Step of receiving a reception signal; (S110) Step of estimating a frequency offset by using equation 4

Abstract translation: 本发明涉及一种估计在OFDM系统中产生的频率偏移的方法。 通过在估计频率偏移中使用最大似然估计理论，可以提供与根据现有技术的估计方法相比较的不规则噪声状态和更宽估计范围的估计。 （附图标记）（AA）开始; （BB）结束; （S100）接收接收信号的步骤; （S110）使用式4估计频率偏移的步骤

公开(公告)号：KR1020130044045A

公开(公告)日：2013-05-02

申请号：KR1020110108301

申请日：2011-10-21

Applicant: 목포대학교산학협력단

Inventor： 이성로 ,  이연우 ,  박희만 ,  김진우 ,  김경성 ,  문민우 ,  조용옥 ,  박진관 ,  최명수 ,  이성호 ,  양후열

IPC: H04W16/14 ,  H04W16/12 ,  H04J11/00

CPC classification number: H04W16/12 ,  H04J11/00 ,  H04W16/06 ,  H04W16/14

Abstract: PURPOSE: A method for efficiently reusing and managing a frequency by utilizing a seaway mark identification device for marine telematics is provided to supply a frequency reuse method and a frequency utilization method between users in an integrated model which is connected to a land mobile communication system based on OFDM(Orthogonal Frequency Division Multiplexing). CONSTITUTION: A frequency is divided corresponding to distance and is reused. The frequency is assigned to a seaway mark identification device with a CR(Cognitive Radio) function to be reused. A frequency, which use frequency is low, and another frequency which interference is not reached are utilized as a CR frequency. The frequencies are assigned per timeslot. The frequencies are reused in the whole frequency environment. [Reference numerals] (AA) Land integrated system using an OFDMA communication system; (BB) Seaway mark identification device having a cognitive radio function; (CC) Cognitive radio(CR) network; (DD) Frequency reuse in a cognitive radio concept; (EE) Ship B-CR user

Abstract translation: 目的：提供一种通过利用海上远程信息处理的海标识别装置来有效地重用和管理频率的方法，以提供连接到陆地移动通信系统的综合模型中的用户之间的频率重用方法和频率利用方法 在OFDM（正交频分复用）上。 构成：一个频率对应于距离，并被重复使用。 将频率分配给具有CR（认知无线电）功能的海运标识识别装置，以便重新使用。 使用频率低的频率和没有达到的干扰的另一频率被用作CR频率。 每个时隙分配频率。 频率在整个频率环境中重复使用。 （附图标记）（AA）使用OFDMA通信系统的陆地综合系统; （BB）具有认知无线电功能的海盗识别装置; （CC）认知无线电（CR）网络; （DD）认知无线电概念中的频率重用; （EE）船舶B-CR用户

公开(公告)号：KR1020130022786A

公开(公告)日：2013-03-07

申请号：KR1020110085695

申请日：2011-08-26

Applicant: 목포대학교산학협력단

Inventor： 최지은 ,  조용옥 ,  강일우 ,  박진관 ,  이연우 ,  정민아 ,  이성로

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

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

Abstract: PURPOSE: A service quality improving method of a differentiated service for a network in a ship is provided to improve QoS(Quality of Service) by preventing loss in an out packet buffered in an AS(Assured Service) WLP(WiMedia Logical link control Protocol) device. CONSTITUTION: An AS WLP device executes a handoff process in a ship network by moving from a first BS(Bridge Station)(120) to a second BS(130). The second BS communicates with BE(Best Effort) service WLP devices. An OUT(OUT-of-profile) packet of the AS WLP device is marked on an IN(N-Profile) packet again in a section corresponding to the maximum window size. The marked packet is forwarded to the second BS.

Abstract translation: 目的：提供一种用于船舶网络的差异化服务的服务质量改进方法，以通过防止在AS（保证服务）WLP（WiMedia逻辑链路控制协议）中缓存的输出分组中的丢失来改善QoS（服务质量） 设备。 构成：AS WLP设备通过从第一BS（桥接站）（120）移动到第二BS（130）来执行船舶网络中的切换过程。 第二BS与BE（Best Effort）服务WLP设备进行通信。 AS WLP设备的OUT（OUT-profile）数据包在对应于最大窗口大小的部分中再次标记在IN（N-Profile）分组上。 标记的分组被转发到第二BS。

公开(公告)号：KR1020140045010A

公开(公告)日：2014-04-16

申请号：KR1020120110830

申请日：2012-10-05

Applicant: 목포대학교산학협력단

Inventor： 박진관 ,  이정훈 ,  김영주 ,  이성호 ,  박상혁 ,  조용옥 ,  정민아 ,  이연우 ,  이성로

IPC: H04W16/20

CPC classification number: H04W16/20 ,  H04W4/70

Abstract: A method of designing an indoor wireless sensor network using augmented reality The method comprises the steps of: acquiring environment data including at least one among a temperature, humidity, brightness, and an inclination using a sensor terminal in a wireless sensor network; storing the environment data in a table of a database; correcting a location of the sensor terminal using a terrestrial magnetism sensor and an acceleration sensor that are attached to the sensor terminal; matching the stored environment data to the corrected location of the sensor terminal and augmented reality; and displaying the environment data matched to the augmented reality. According to the present invention, data collected through sensor nodes is delivered to a user using a sensor network and augmented reality. Thus, the data delivery can be more convenient compared with a conventional technology that should always use a PC and requires an exact location of a sensor. Moreover, the use can acquire more correct and intuitive data since the data about the real environment is provided in real time through convergence of the reality and virtual reality. [Reference numerals] (AA) Y axis; (BB) 4F-Ward; (CC) Professor; (DD) Patient room; (EE) Production room; (FF) X axis; (GG) Sensor

Abstract translation: 一种使用增强现实设计室内无线传感器网络的方法该方法包括以下步骤：使用无线传感器网络中的传感器终端获取包括温度，湿度，亮度和倾斜度中的至少一个的环境数据; 将环境数据存储在数据库的表中; 使用附接到所述传感器端子的地磁传感器和加速度传感器来校正所述传感器端子的位置; 将存储的环境数据与传感器终端的校正位置匹配并增强现实; 并显示与增强现实相匹配的环境数据。 根据本发明，通过传感器网络收集的数据使用传感器网络和增强现实传递给用户。 因此，与始终使用PC并需要传感器的精确位置的常规技术相比，数据传送可以更方便。 此外，使用可以获得更正确和直观的数据，因为通过现实和虚拟现实的融合实时提供关于真实环境的数据。 （标号）（AA）Y轴; （BB）4F-Ward; （CC）教授; （DD）病房; （EE）生产室; （FF）X轴; （GG）传感器

公开(公告)号：KR1020130044043A

公开(公告)日：2013-05-02

申请号：KR1020110108299

申请日：2011-10-21

Applicant: 목포대학교산학협력단

Inventor： 강승구 ,  윤석호 ,  조용옥 ,  박선 ,  이연우 ,  이성로 ,  강일우 ,  양후열 ,  송익호 ,  최조천

IPC: H04B1/7183

CPC classification number: H04B1/7183 ,  H04B1/7085

Abstract: PURPOSE: A method for tracing a UWB(Ultra-WideBand) signal is provided to analyze a generated surrounding peak and a generated problem because of the shape of a correlation function of the UWB signal and to solve the problem. CONSTITUTION: Synchronization of a UWB system is performed. A surrounding peak of a UWB correlation function is removed in a tracing process for the synchronization. The surrounding peak is removed based on a receiving signal and the change of a correlation value. A sharp autocorrelation function is obtained by removing values of the correlation function scattered around surrounding peaks. [Reference numerals] (AA) Tracing process

Abstract translation: 目的：提供一种用于跟踪UWB（超宽带）信号的方法，用于分析由于UWB信号的相关函数的形状而产生的周围峰值和产生的问题，并解决问题。 构成：执行UWB系统的同步。 UWB相关函数的周围峰值在用于同步的跟踪过程中被去除。 基于接收信号和相关值的变化去除周围峰。 通过去除围绕周围峰值的相关函数的值获得明显的自相关函数。 （附图标记）（AA）追踪过程