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公开(公告)号：KR101259562B1
公开(公告)日：2013-04-30
申请号：KR1020110085107
申请日：2011-08-25
Applicant: 목포대학교산학협력단
IPC: H04L27/26
Abstract: 본 발명은 부호함수 기반 주파수 옵셋 추정 방법에 대하여 개시한다. 본 발명의 일면에 따른 주파수 옵셋 추정 방법은, 주파수 옵셋 추정 장치에 의한 주파수 옵셋 추정 방법으로서, 수신신호를 입력받으면, 상기 수신신호에 복소 부호함수를 취하는 단계; 상기 복소 부호함수를 취한 상기 수신신호의 각 샘플 간의 상관값을 산출하는 단계; 및 상기 상관값에 각도 연산을 수행하고, 상기 각도 연산의 결과에 기설정된 상수를 곱하여 상기 수신신호의 주파수 옵셋 추정치를 산출하는 단계를 포함하는 것을 특징으로 한다.
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公开(公告)号：KR1020130039157A
公开(公告)日：2013-04-19
申请号：KR1020110103646
申请日：2011-10-11
Applicant: 목포대학교산학협력단
CPC classification number: H04W36/30 , H04W16/32 , H04W36/04 , H04W84/045
Abstract: PURPOSE: A cell management method and a handover method are provided to increase the accuracy of handover generated in a boundary area of a cell by reducing the size of a cell management message including the information of a neighboring base station. CONSTITUTION: A serving base station broadcasts a neighboring base station notification message to a terminal. The neighboring base station notification message includes the information of a sector, in which a terminal is located, and the information of a base station which locates in a boundary area of a cell. A neighboring base station provides cell tier information to the terminal. When a reception signal of the serving base station is maintained during timeout time set as a predetermined value, the terminal handovers data to an adjacent cell. The predetermined value is smaller than a value except for a variable hysteresis margin of handover set from the reception signal of the neighboring base station. [Reference numerals] (AA) Sharing femtosystem network topology; (BB,JJ) Terminal analyzes cell signals; (CC) Cell signal quality(time > hysteresis & serving cell Hysteresis considering overlapped cells); (NN) Terminal and base station determine handover(handover as rank 2); (OO) IEEE 802. 16e, FBS handover;
Abstract translation: 目的：提供一种小区管理方法和切换方法，通过减小包含相邻基站的信息的小区管理消息的大小来增加在小区的边界区域中生成的切换的准确性。 构成：服务基站向终端广播相邻的基站通知消息。 相邻基站通知消息包括终端所在的扇区的信息和位于小区边界区域的基站的信息。 相邻基站向终端提供小区层信息。 当在设定为预定值的超时时间期间维持服务基站的接收信号时，终端将数据切换到相邻小区。 该预定值小于从相邻基站的接收信号设置的切换的可变滞后余量之外的值。 （附图标记）（AA）共享飞思科网络拓扑; （BB，JJ）终端分析细胞信号; （CC）小区信号质量（时间>滞后＆服务小区<重叠相邻小区）; （DD）终端和基站确定切换; （EE）新服务基站分析和注册终端信息; （FF）将优先级（等级1）应用于新的服务小区，并与相邻小区共享信息; （GG）将优先级应用于终端和相邻基站之间的重叠相邻小区，并反映到重叠的信号分析和切换要素; （HH）通过将优先级反映到MOB_NBR_ADV来服务小区广播; （二）考虑优先级共享网络拓扑; （KK）小区信号质量（服务小区<重叠二级小区）; （LL）终端措施超时时间; （MM）超时（时间>考虑重叠单元的滞后）; （NN）终端和基站确定切换（切换为等级2）; （OO）IEEE802.16e，FBS切换;
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公开(公告)号：KR1020130039154A
公开(公告)日：2013-04-19
申请号：KR1020110103643
申请日：2011-10-11
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A sensor using a self-injection locked reflective semiconductor optical amplifier for measuring marine temperature and strain is provided to measure changes in temperature and strain based on the power of an optical bragg lattice as the power of an optical fiber bragg lattice is linearly changed according to changes in the temperature and strain. CONSTITUTION: A sensor using a self-injection locked reflective semiconductor optical amplifier for measuring marine temperature and strain comprises a reflective semiconductor light amplifier(110), a variable optical fiber bragg grating(130), optical fiber bragg gratings(160-200), and a light spectrum analyzer(140). The reflective semiconductor light amplifier is self-injection locked. The variable optical fiber bragg grating generates variable laser sources by self-injection locking the reflective semiconductor light amplifier. [Reference numerals] (110) Reflective semiconductor light amplifier; (140) Light spectrum analyzer;
Abstract translation: 目的：提供一种用于测量海洋温度和应变的自注射锁定反射半导体光学放大器的传感器，用于测量基于光学布拉格点阵的功率的温度和应变的变化，因为光纤布拉格晶格的功率是线性变化的 根据温度和应变的变化。 构成：使用用于测量海洋温度和应变的自注射锁定反射半导体光学放大器的传感器包括反射半导体光放大器（110），可变光纤布拉格光栅（130），光纤布拉格光栅（160-200）， 和光谱分析器（140）。 反射半导体光放大器是自注射锁定的。 可变光纤布拉格光栅通过自发注入锁定反射半导体光放大器来产生可变激光源。 （附图标记）（110）反射半导体光放大器; （140）光谱分析仪;
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公开(公告)号：KR1020130037920A
公开(公告)日：2013-04-17
申请号：KR1020110102459
申请日：2011-10-07
Applicant: 목포대학교산학협력단
CPC classification number: H04B7/024 , H04B7/0456 , H04L2001/0097
Abstract: PURPOSE: A cooperative communication method for a UWB(Ultra Wide-Band) based D-MAC(Distributed-Medium Access Control) system in a marine environment is provided to increase reception rates by applying an adaptive RNS(Relay Node Selection) cooperative communication technology to UWB link transmission speed. CONSTITUTION: A wireless channel condition change is identified. A relay node selection process is executed according to the change of the identified wireless channel state in order to execute cooperative communication using a UWB technology based a D-MAC standard protocol. A relay DRP(Distributed Reservation Protocol) reservation process is executed for guaranteeing compatibility with the D-MAC standard protocol. A transmission path, which has the minimum delay time by using link feedback information between the WiMedia devices, is selected.
Abstract translation: 目的：提供一种用于海洋环境中基于UWB（超宽带）的D-MAC（分布式媒体访问控制）系统的协同通信方法，通过应用自适应RNS（中继节点选择）协作通信技术来提高接收速率 到UWB链路传输速度。 构成：识别无线信道条件变化。 根据所识别的无线信道状态的变化来执行中继节点选择处理，以便使用基于D-MAC标准协议的UWB技术来执行协作通信。 执行中继DRP（分布式预留协议）预留处理，以保证与D-MAC标准协议的兼容性。 选择通过在WiMedia设备之间使用链路反馈信息具有最小延迟时间的传输路径。
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35.发明公开
公开(公告)号：KR1020130037912A
公开(公告)日：2013-04-17
申请号：KR1020110102449
申请日：2011-10-07
Applicant: 목포대학교산학협력단
IPC: H04B10/02
CPC classification number: H04B10/2507 , H04B2210/517
Abstract: PURPOSE: A signal extracting device is provided to improve a CNR(Carrier-to Noise Ratio) by generating PRZ(Pseudo Return-to-Zero). CONSTITUTION: A clock extracting unit extracts a clock from an NRZ signal. Interval lattice is regularly arranged in parallel. A generating unit generates a clock signal by using an optical fiber ring laser which is locked with the interval lattice. The interval lattice is constructed as a cladding mode and a core mode. The interval lattice is used as an NRZ-to-PRZ converter.
Abstract translation: 目的：提供信号提取装置，通过产生PRZ（伪归零）来提高CNR（载噪比）。 构成：时钟提取单元从NRZ信号中提取时钟。 间隔格格是平行排列的。 生成单元通过使用与间隔格子锁定的光纤环形激光器来生成时钟信号。 间隔格子被构造为包层模式和核心模式。 间隔格子用作NRZ到PRZ转换器。
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Patent Agency Ranking
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
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。
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公开(公告)号：KR1020130022794A
公开(公告)日：2013-03-07
申请号：KR1020110085707
申请日：2011-08-26
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A query processing system for supporting variable packet transmission in a wireless sensor network is provided to minimize energy consumption in a sensor node by controlling packets of a transmission message according to an attribute of the packets. CONSTITUTION: A sensor node(300) receives a query message from a base node. The sensor node collects environment data according to a query received in the query message. The sensor node generates a response message including the environment data. The sensor node generates the response message by changing a payload size of the response message packet according to attribute information included in the query message. The sensor node transmits the generated response message to the base node. [Reference numerals] (100) Host PC; (200) Base node; (300) Sensor node; (AA) Transmitting a query written in a Tiny DB to the base node; (BB) Transmitting the query to a corresponding node; (C1) Writing Query, and using API; (C2) Transmitting attributes to assigned nodes by selecting identification Group ID and Node ID; (C3) Writing the query to be convenient and comprehensible for a user using a Tiny DB application program; (C4) Possibly confirming by plotting a graph of data using the API; (DD,GG) Transmitting the query; (EE,HH) Transmitting the data; (F1) Transmitting the Query, and collecting data from each node; (F2) Transmitting the written query to corresponding nodes; (F3) Collecting transmitted data, and transmitting to a PC; (I1) Acquiring the Query, and transmitting the data; (I2) Installing an application to be used; (I3) Receiving the query through the base node; (I4) Acquiring the data of the attribute which is received by query; (I5) Transmitting data acquired from the real world to a BS node; (JJ) Transmitting the data to the PC; (KK) Transmitting the data to the base node according to a variable message format
Abstract translation: 目的：提供一种用于在无线传感器网络中支持可变分组传输的查询处理系统，以通过根据分组的属性控制传输消息的分组来最小化传感器节点的能量消耗。 构成：传感器节点（300）从基本节点接收查询消息。 传感器节点根据查询消息中收到的查询收集环境数据。 传感器节点生成包含环境数据的响应消息。 传感器节点通过根据包括在查询消息中的属性信息改变响应消息分组的有效载荷大小来产生响应消息。 传感器节点将生成的响应消息发送到基本节点。 （附图标记）（100）主机PC; （200）基节点; （300）传感器节点; （AA）将在Tiny DB中写入的查询发送到基本节点; （BB）将查询发送到相应的节点; （C1）书写查询，并使用API; （C2）通过选择识别组ID和节点ID将属性发送到分配的节点; （C3）使用Tiny DB应用程序为用户编写查询以方便易懂; （C4）可能通过使用API绘制数据图来确认; （DD，GG）发送查询; （EE，HH）传输数据; （F1）发送查询，并从每个节点收集数据; （F2）将书面查询发送给相应的节点; （F3）收集传输的数据，并发送给PC; （I1）获取查询并发送数据; （I2）安装要使用的应用程序; （I3）通过基本节点接收查询; （I4）获取通过查询接收到的属性的数据; （I5）将从现实世界获取的数据发送到BS节点; （JJ）将数据发送到PC; （KK）根据可变消息格式将数据发送到基本节点
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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
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。
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39.发明公开해양 텔레매틱스용 모바일 ＩＰ 패킷 버퍼링 방식에서 ＴＣＰ 성능향상을 위한 암시적인 패킷 포워딩 우선권 보장 방안 无效通过隐含的优先级分组来改进TCP性能，在移动IP网络中进行带有海上电报的分组缓冲
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
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。
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公开(公告)号：KR1020130022783A
公开(公告)日：2013-03-07
申请号：KR1020110085688
申请日：2011-08-26
Applicant: 목포대학교산학협력단
CPC classification number: Y02D70/00 , H04W84/18 , H04L12/28 , H04W40/02 , H04W52/0212
Abstract: PURPOSE: A ship sensor network and an effective data merging method are provided to increase the lifetime of a network by reducing the amount of data transmission. CONSTITUTION: A plurality of sensor nodes(1-3) compares a collected average value of a data value with a current data value which is periodically collected. The plurality of the sensor nodes transmits the current data to a cluster head(10) when the current data value is over the average value. The cluster head transmits an average value of a data value transmitted from a plurality of the sensor nodes to a synchronization node(20). The synchronization node transmits the average value transmitted from the cluster head to an upper analysis system. [Reference numerals] (20) Synchronization node; (AA) Legend; (BB) Sensor node; (CC) Cluster head
Abstract translation: 目的：提供船舶传感器网络和有效的数据合并方法，通过减少数据传输量来增加网络的使用寿命。 构成：多个传感器节点（1-3）将收集的数据值的平均值与周期性收集的当前数据值进行比较。 当当前数据值超过平均值时，多个传感器节点将当前数据发送到簇头（10）。 簇头将从多个传感器节点发送的数据值的平均值发送到同步节点（20）。 同步节点将从簇头发送的平均值发送到上位分析系统。 （附图标记）（20）同步节点; （AA）图例; （BB）传感器节点; （CC）簇头
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