公开(公告)号：KR101160432B1

公开(公告)日：2012-06-28

申请号：KR1020110012469

申请日：2011-02-11

Applicant: 포항공과대학교 산학협력단

Inventor： 전중휘 ,  김치하 ,  양동민 ,  신종민

IPC: H04B7/26

CPC classification number: H04W72/02 ,  H04W48/16

Abstract: PURPOSE: A rendezvous channel determination method in a multi-channel access network and apparatus thereof are provided to rapidly connect one channel with desired node by using a distributed channel rendezvous method. CONSTITUTION: A memory unit(20) stores a rendezvous channel determination algorithm. A CPU(Central Processing Unit)(10) reads the rendezvous channel determination algorithm. A radio wave transmission and reception unit(30) transmits searching results to the CPU by searching rendezvous channels through the rendezvous channel determination algorithm. The CPU determines the rendezvous channels according to the searching results. The radio wave transmission and reception unit uses the determined rendezvous permutations by applying the distributed channel rendezvous method.

Abstract translation: 目的：提供多通道接入网络中的会合信道确定方法及其装置，通过使用分布式信道会合方法快速地将一个信道与期望的节点连接。 构成：存储单元（20）存储会合通道确定算法。 CPU（中央处理单元）（10）读取会合通道确定算法。 无线电波发送和接收单元（30）通过会合信道确定算法搜索会合信道，向CPU发送搜索结果。 CPU根据搜索结果确定会合通道。 无线电波发送和接收单元通过应用分布式信道会合方法来使用确定的会合置换。

公开(公告)号：KR101242311B1

公开(公告)日：2013-03-11

申请号：KR1020110135295

申请日：2011-12-15

Applicant: 포항공과대학교 산학협력단

Inventor： 김치하 ,  이기석 ,  전중휘 ,  김철민

IPC: H04L1/16 ,  H04W28/04 ,  H04W74/08

CPC classification number: H04W74/0858 ,  H04W84/12

Abstract: PURPOSE: A data retransmission method is provided to improve network throughput by successively transmitting data in response to data transmission failure. CONSTITUTION: A header of data which is firstly transmitted is decoded. Address information of a node which firstly transmits the data is obtained(S530). A data transmission failure response is transmitted for transmitting the data to the obtained address information of the node again(S540). The data transmission failure response is based on an IEEE(Institute of Electrical and Electronics Engineers) 802. A type of a control frame defined in 11 MAC(Media Access Control) is defined as 01. The data transmission failure response is defined as a value which is not overlapped with a lower type. [Reference numerals] (AA) Start; (BB) End; (S510) Receiving first data from a first node; (S520) Detecting collision by receiving second data from a second node after receiving the header of the first data; (S530) Extracting the information of the first node from the received header of the first data; (S540) Transmitting a data transmission failure response to the first node based on the extracted information of the first node after completing the reception of the first and second data; (S550) Re-receiving the first data from the first node after a PIFS; (S560) Standing by for an SIFS and transmitting a data transmission success response to the first node if the re-reception of the first data is completed; (S570) Transmitting the data transmission success response to the first node and re-receiving the second data from the second node after a DIFS; (S580) Standing by for an SIFS and transmitting a data transmission success response to the second node if the re-reception of the second data is completed

Abstract translation: 目的：提供一种数据重传方法，通过依照数据传输失败连续发送数据来提高网络吞吐量。 构成：首先发送的数据头被解码。 获得首先发送数据的节点的地址信息（S530）。 发送数据传输失败响应，用于将数据再次发送到获得的节点的地址信息（S540）。 数据传输失败响应基于IEEE（电气和电子工程师协会）802。在11 MAC（媒体访问控制）中定义的控制帧的类型被定义为01.数据传输失败响应被定义为值 它不与较低类型重叠。 （附图标记）（AA）开始; （BB）结束; （S510）从第一节点接收第一数据; （S520）在接收到第一数据的头部之后，从第二节点接收第二数据来检测冲突; （S530）从接收到的第一数据的报头提取第一节点的信息; （S540）在完成了第一和第二数据的接收之后，基于提取的第一节点的信息向第一节点发送数据传输失败响应; （S550）在PIFS之后从第一节点重新接收第一数据; （S560）如果第一数据的重新接收完成，则为SIFS站立并向第一节点发送数据传输成功响应; （S570）在DIFS之后向第一节点发送数据传输成功响应并从第二节点重新接收第二数据; （S580）如果第二个数据的重新接收完成，则站在SIFS处，并向第二个节点发送数据传输成功响应