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公开(公告)号:US08135863B2
公开(公告)日:2012-03-13
申请号:US10594670
申请日:2005-04-26
申请人: Maziar Nekovee , Trevor Burbridge , Andrea Soppera
发明人: Maziar Nekovee , Trevor Burbridge , Andrea Soppera
CPC分类号: H04L69/04 , H04L47/10 , H04L67/04 , H04L67/10 , H04L67/12 , H04L67/28 , H04L67/2828 , H04L67/2842
摘要: Data collected by sensors (10, 30) is transmitted to data collection points (31, 61) over a network using an epidemic protocol in which data received by a relay (3) is forwarded to a randomly-selected group of further relays (4, 5, 6) unless the same data has been previously received by the relay (3) or the data is time-expired. Data received by a relay (3) from different sources (1, 2, 30) in the same time-frame is aggregated using a Bloom filter process so that in each time frame only a single Bloom filter message is transmitted by each relay.
摘要翻译: 由传感器(10,30)收集的数据通过网络传输到数据采集点(31,61),其中使用流行协议,其中由继电器(3)接收的数据被转发到随机选择的其它继电器组(4 ,5,6),除非中继器(3)先前已接收到相同的数据,否则数据是时间到期的。 在相同时间帧内由不同来源(1,2,30)的中继器(3)接收的数据使用布隆过滤器进行聚合,使得在每个时间帧中,每个继电器只发送单个布隆过滤器消息。
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公开(公告)号:US20080270628A1
公开(公告)日:2008-10-30
申请号:US10594670
申请日:2005-04-26
申请人: Maziar Nekovee , Trevor Burbridge , Andrea Soppera
发明人: Maziar Nekovee , Trevor Burbridge , Andrea Soppera
IPC分类号: G06F15/16
CPC分类号: H04L69/04 , H04L47/10 , H04L67/04 , H04L67/10 , H04L67/12 , H04L67/28 , H04L67/2828 , H04L67/2842
摘要: Data collected by sensors (10, 30) is transmitted to data collection points (31, 61) over a network using an epidemic protocol in which data received by a relay (3) is forwarded to a randomly-selected group of further relays (4, 5, 6) unless the same data has been previously received by the relay (3) or the data is time-expired. Data received by a relay (3) from different sources (1, 2, 30) in the same time-frame is aggregated using a Bloom filter process so that in each time frame only a single Bloom filter message is transmitted by each relay.
摘要翻译: 由传感器(10,30)收集的数据通过网络传输到数据采集点(31,61),其中使用流行协议,其中由继电器(3)接收的数据被转发到随机选择的其它继电器组(4 ,5,6),除非中继器(3)先前已接收到相同的数据,否则数据是时间到期的。 在相同时间帧内由不同来源(1,2,30)的中继器(3)接收的数据使用布隆过滤器进行聚合,使得在每个时间帧中,每个继电器只发送单个布隆过滤器消息。
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公开(公告)号:US20060124720A1
公开(公告)日:2006-06-15
申请号:US10544128
申请日:2004-02-19
申请人: Trevor Burbridge , Maziar Nekovee , Andrea Soppera
发明人: Trevor Burbridge , Maziar Nekovee , Andrea Soppera
IPC分类号: G06F17/00
CPC分类号: H04L12/185 , H04L67/24 , H04N21/25808 , H04N21/6405
摘要: The method involves transmitting to receivers receiving a multicast a plurality of requests for feedback (3), each request including a probability parameter (P). Each terminal replies to this (or not) with a corresponding probability (4). One then counts the number (r) of replies to each request (5); determines, from the counts and parameters, estimates of the number of receivers (6); and filters the estimates (7). The method further includes repeatedly computing a new probability parameter to be included in a subsequent feedback request, by forecasting, from the counts and parameters, a upper bound for the number of receivers (9, 10, 11) and determining from this the new probability parameter (12) such that the risk that the number of replies exceeds a predefined threshold is kept below a predefined value.
摘要翻译: 该方法包括向接收多播的接收机发送多个反馈请求(3),每个请求包括概率参数(P)。 每个终端以相应的概率(4)回复这个(或不)。 然后再对每个请求的答复数(r)进行计数(5); 从计数和参数确定接收机数量的估计(6); 并过滤估计值(7)。 该方法还包括通过从计数和参数预测接收机数量(9,10,11)的上限来重复计算待包括在随后的反馈请求中的新概率参数,并从此确定新概率 参数(12)使得答复数量超过预定阈值的风险保持在预定值以下。
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公开(公告)号:US20050207354A1
公开(公告)日:2005-09-22
申请号:US10517652
申请日:2003-06-12
申请人: Maziar Nekovee , Sverrir Olafsson
发明人: Maziar Nekovee , Sverrir Olafsson
CPC分类号: H04L1/1848 , H04L12/1863 , H04L2001/0093
摘要: A multicast system is described in which a mechanism for suppressing feedback involves the receivers using an optimized timer function for selecting a backoff delay time before sending feedback, and canceling their feedback if in the meantime they detect that another receiver has sent a duplicate feedback message. The timer function is optimised, taking into account both the expected number of feedback messages and the extra latency which is introduced by the feedback mechanism, by minimizing an objective function expressed in terms of both these two aspects.
摘要翻译: 描述了一种组播系统,其中用于抑制反馈的机制涉及使用优化的定时器功能的接收机,用于在发送反馈之前选择退避延迟时间,并且如果同时它们检测到另一接收机已经发送了重复的反馈消息,则取消它们的反馈。 定时器功能被优化,考虑到反馈消息的预期数量和反馈机制引入的额外延迟,通过最小化这两个方面表达的目标函数。
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公开(公告)号:US07526523B2
公开(公告)日:2009-04-28
申请号:US10517652
申请日:2003-06-12
申请人: Maziar Nekovee , Sverrir Olafsson
发明人: Maziar Nekovee , Sverrir Olafsson
IPC分类号: G06F15/16
CPC分类号: H04L1/1848 , H04L12/1863 , H04L2001/0093
摘要: A multicast system is described in which a mechanism for suppressing feedback involves the receivers using an optimized timer function for selecting a backoff delay time before sending feedback, and canceling their feedback if in the meantime they detect that another receiver has sent a duplicate feedback message. The timer function is optimised, taking into account both the expected number of feedback messages and the extra latency which is introduced by the feedback mechanism, by minimizing an objective function expressed in terms of both these two aspects.
摘要翻译: 描述了一种组播系统,其中用于抑制反馈的机制涉及使用优化的定时器功能的接收机,用于在发送反馈之前选择退避延迟时间,并且如果同时它们检测到另一接收机已经发送了重复的反馈消息,则取消它们的反馈。 定时器功能被优化,考虑到反馈消息的预期数量和反馈机制引入的额外延迟,通过最小化这两个方面表达的目标函数。
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