Performance evaluation of a wireless hierarchical data dissemination system
Performance evaluation of a wireless hierarchical data dissemination system
复制标题
无线分层数据分发系统的性能评估
DOI：
10.1145/313451.313528
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Wang
中科院分区：
文献类型：
--
作者：
Qinglong Hu;Lee;Wang
已经开发了各种技术来提高无线信息服务的性能。诸如信息广播、频繁访问数据的高速缓存以及用于基于拉取的数据请求的点对点信道之类的技术通常用于减少数据访问时间。为了有效地利用信息广播，采用索引和调度方案来组织数据广播。文献中的大多数研究都集中在个别技术或它们的组合与一些限制性的假设。没有研究考虑这些技术以综合方式一起工作。在本文中，我们提出了一个动态的数据传输模型的无线通信环境。我们的模型的一个重要特点是，数据通过各种存储介质传播根据动态收集的数据访问模式。在一组仿真研究中给出了各种结果，这些研究给出了无线数据传输系统设计背后的一些直观性。
Various techniques have been developed to improve the performance of wireless information services. Techniques such as information broadcasting, caching of frequently accessed data, and point-to-point channels for pull-based data requests are often used to reduce data access time. To efficiently utilize information broadcast, indexing and scheduling schemes are employed for the organization of data broadcast. Most of the studies in the literature focused either on individual technique or a combination of them with some restrictive assumptions. There is no study considering these techniques working together in an integrated manner. In this paper, we propose a dynamic data delivery model for wireless communication environments. An important feature of our model is that data are disseminated through various storage mediums according to the dynamically collected data access patterns. Various results are presented in a set of simulation studies, which give some of the intuitions behind the design of a wireless data delivery system.