Another Sky

摘要： 文章题目：A DTN Congestion Avoidance Strategy Based on Path Avoidance [ICFCC’2010] 基本思想： 1，把缓冲区分成三部分，见下图： 其中，Direct Transmission Storage大小是固定不变的，用于传输出口链路刚好可用的消息以及一些控制报文。 保管消息与临时消息的存储空间都有一个最小值，并允许在不打破对方的最小值... 阅读全文

摘要： 具体环境： Ubuntu10.10 + jdk-6u24-linux-i586 + eclipse-java-helios-SR2-linux-gtk + one_1.4.0 已经安装好JDK并设置好环境变量。Eclipse的工作目录为：/home/ming/workspace 解压one_1.4.0.zip， 并将解压后的文件夹拷贝至Eclipse工作目录下。将该文件夹重命名为项目的名字，此处为... 阅读全文

摘要： Contact Graph: In a contact graph, the nodes are the physical nodes from the traces, the edges are the contacts, and the weights of the edges are the values based on the metrics specified such as the... 阅读全文

摘要： Delay tolerant networks (DTNs) are a class of emerging networks that experience frequent and long-duration partitions. These networks have a variety of applications in situations such as crisis environments and deep-space communication. In this paper, the problem of routing in DTNs is studied. While routing in the Internet and mobile ad hoc networks has been studied extensively, due to the unique characteristic of frequent partitioning in DTNs, traditional ad hoc routing protocols such as AODV a 阅读全文

摘要： 单兵作战系统： 地面武士LW(美国） FIST（英国） SC(法国） D2S2（荷兰）   20世纪70年代初，DARPA出于对未来战争的考虑，启动了PRNET(Packet Radio Network)计划，研究在战场环境下利用分组无线网络进行数据通信。 1983年，DARPA启动了SURAN(Survivable Adaptive Network)研究如何扩展PRNET的研究成果... 阅读全文

摘要： The delay tolerant network envisages six classes of services:Custody Transfer.Return ReceiptCustody Transfer NotificationBundle-Forwarding NotificationPriority of Delivery ( Bulk, Normal, Expedited )A... 阅读全文

摘要： Original URL:http://sethgodin.typepad.com/seths_blog/2010/04/the-levy-flight.html Clay Shirky taught me this very cool mathematical concept that shows up in nature, and now in marketing and social med... 阅读全文

摘要： If flow control is propagated backward from congested nodes toward traffic sources, then the flow control mechanism can be used as at least a partial solution to the problem of congestion as well. &#... 阅读全文

摘要： The DTN architecture depends on time synchronization among DTN nodes(supported by external, non-DTN protocols) for four primary purposes: bundle and fragment identification routing with scheduled or p... 阅读全文

摘要： DTN fragmentation and reassembling are designed to impove the efficiency of bundle transfers by ensuring that contact volumes are fully utilized and by avoiding retransmissions of partially-forwarded ... 阅读全文