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公开(公告)号：KR1020160132777A
公开(公告)日：2016-11-21
申请号：KR1020160057231
申请日：2016-05-10
IPC: H04L9/08
Abstract: 무선채널의상반성(reciprocity)을이용하여랜덤시퀀스를획득하는단계, 랜덤시퀀스를바탕으로보안통신을위한보안키를생성하는단계, 그리고무선채널의측정결과로부터측정된평탄도가미리결정된임계값을초과하는경우, 상기보안키의생성을중단하는단계를통해보안키를생성하는방법및 장치가제공된다.
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公开(公告)号：KR1020120106115A
公开(公告)日：2012-09-26
申请号：KR1020110023990
申请日：2011-03-17
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An IoT(Interference over Thermal) control method for OFDMA(Orthogonal Frequency Division Multiple Access) based wireless mesh network is provided to efficiently control the amount of interference and to perform power control. CONSTITUTION: A request node(R60) measures a preamble signal(S63). The request node calculates the reception power of the preamble signal from a target node based on the measured preamble signal(S64). The request node calculates SIR(Signal-to-Interference Ratio) of the target node through the reception power of the calculated preamble signal(S66). The request node determines transmission power of the target node based on the calculated SIR(S67). [Reference numerals] (S61) Request; (S62) Grant; (S63) Calculating a preamble signal which is received from various grant nodes; (S64) Calculating the reception power of the preamble signal from the grant node positioned at 1-hop; (S65) Calculating sum of a preamble reception power which is received from the grant node at 2-hop; (S66) Calculating SIRn from a control channel of each node at1-hop; (S67) Calculating transmission power per sub carrier when transmitting a data channel to the node n; (S68) Confirm
Abstract translation: 目的：提供一种基于OFDMA（正交频分多址）的无线网状网络的IoT（干扰热）控制方法，以有效地控制干扰量并执行功率控制。 构成：请求节点（R60）测量前置信号（S63）。 请求节点基于测量的前导信号来计算来自目标节点的前导码信号的接收功率（S64）。 请求节点通过所计算的前导信号的接收功率来计算目标节点的SIR（信号与干扰比）（S66）。 请求节点基于计算出的SIR来确定目标节点的传输功率（S67）。 （附图标记）（S61）请求; （S62）拨款; （S63）计算从各种授权节点接收的前导信号; （S64）从位于1跳的授权节点计算前导码信号的接收功率; （S65）计算从授权节点在2跳接收的前导码接收功率的和; （S66）从1跳的每个节点的控制信道计算SIRn; （S67）当向节点n发送数据信道时，计算每个子载波的发射功率; （S68）确认
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