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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
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对于宽容延迟网络的范围感知消息丢弃策略.

Samiullah Khan1, Khalid Saeed1, Muhammad Faran Majeed2

  • 1Department of Computer Science, Shaheed Benazir Bhutto University Sheringal, Upper Dir, Khyber Pakhtunkhwa, Pakistan.

PeerJ. Computer science
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PubMed
概括
此摘要是机器生成的。

耐延迟网络 (DTN) 由于连接缺口而面临交付问题. 一个新的Range Aware Drop (RAD) 计划通过优先考虑具有更长寿命 (TTL) 的消息来改善消息传递,减少掉落和网络拥堵.

关键词:
宽容延迟的网络.交付概率 交付概率 交付概率消息丢弃政策 消息丢弃政策TTL TTL 这是一个很好的方法.

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科学领域:

  • 计算机科学 计算机科学
  • 网络化 网络化 网络化

背景情况:

  • 耐延迟网络 (DTNs) 由于连接的间歇性,难以传递消息.
  • DTN节点的缓冲区容量有限会导致网络拥堵,缓冲区满时会导致消息丢失.

研究的目的:

  • 为DTN提出一个新的缓冲器管理方案,即Range Aware Drop (RAD),用于DTN.
  • 为了提高消息传递的概率,并减少在DTNs.overhead比率.

主要方法:

  • 开发了范围意识下降 (RAD) 缓冲管理方案.
  • RAD考虑消息大小和时间到生活 (TTL) 优先级的消息.
  • 模拟了RAD,并将其性能与Drop Oldest (DOA) 和Size Aware Drop (SAD) 方案进行了比较.

主要成果:

  • 与DOA和SAD相比,RAD显著提高了交付概率,并降低了开销比率.
  • RAD的平均跳数为1.7,而DOA的平均跳数为3.4,SAD的平均跳数为3.9.
  • RAD显示消息丢失率为36.2%,远低于SAD (73.3%) 和DOA (84.9%).

结论:

  • 射程感知降落 (RAD) 方案有效地减轻了DTNs中的网络拥堵.
  • RAD使用TTL提高了消息传递效率,并减少了不必要的消息丢失.