Collaborative Research in DAta in Your Space (DAYS)

这项研究调查了一种新的架构，旨在使用广播技术向无线用户提供数据。这项研究的目的是开发一种方案来实现“在您的空间(天)中的数据”的概念，该方案将广播(推送)和传统查询(拉)技术结合到一个全球无线方法中。在该方案中，数据广播者(特殊服务器)将持续广播(推送)所请求的数据到一组“专用”无线频道，这些频道将随时随地被客户端(数据用户)捕获。因此，该空间将被用作所有移动和静态设备的永久存储空间。通用无线广播方法要求移动用户能够找到并使用正确的广播信息。MBE要解决的一些问题包括：1.移动用户如何知道哪个频道有正确的数据？2.如何将数据分配给频道？3.在许多移动用户的情况下，可以使用什么技术来有效地确定每个频道的最佳内容？4.如果没有明确的用户查询，如何确保移动用户正在广播所需的数据？5.如何确保移动用户所需的数据与他一起移动？这些问题必须在全球范围内进行检查。

This research investigates a new architecture designed to providedata to wireless users using a broadcast technique. The objective of this research is to develop schemes for implementing the concept ``DAta in your space (DAYS)" which combines broadcasting (push) and traditional querying (pull) techniques into one global wireless approach. In this scheme the data broadcasters (special servers) will continuouslybroadcast (push) requested data to a set of ``dedicated" wirelesschannels, which will be captured by clients (users of the data) atany time and at any place. The space will thus be used aspersistent storage for all mobile as well as static devices. A universal wireless broadcast approach requires that mobile users be able to find and use the right broadcast information. Some of the questions to mbe addressed include:1. How can the mobile user know which channel has the correct data?2. How is data to be assigned to channels?3. What techniques can be used to effectively determine the best contents of each channel given many mobile users?4. Without explicit user queries, how can the mobile user be assured that the needed data is being broadcast?5. How can the mobile user be assured that the needed data moves with him?These issues have to be examined on a global scale.