| 书目名称 | Data Dissemination in Wireless Computing Environments | | 编辑 | Kian-Lee Tan,Beng Chin Ooi | | 视频video | | | 丛书名称 | Advances in Database Systems | | 图书封面 |  | | 描述 | In our increasingly mobile world the ability to accessinformation on demand at any time and place can satisfy people‘sinformation needs as well as confer on them a competitive advantage.The emergence of battery-operated, low-cost and portable computerssuch as palmtops and PDAs, coupled with the availability andexploitation of wireless networks, have made possible the potentialfor ubiquitous computing. Through the wireless networks, portableequipments will become an integrated part of existing distributedcomputing environments, and mobile users can have access to datastored at information servers located at the static portion of thenetwork even while they are on the move..Traditionally, information is retrieved following a request-responsemodel. However, this model is no longer adequate in a wirelesscomputing environment. First, the wireless channel is unreliable andthe bandwidth is low compared to the wired counterpart. Second, theenvironment is essentially asymmetric with a large number of mobileusers accessing a small number of servers. Third, battery-operatedportable devices can typically operate only for a short time becauseof the short battery lifespan. Thus, clients are expec | | 出版日期 | Book 2000 | | 关键词 | Broadcast; DEX; Microsoft Access; availability; client; eXist; energy; form; information; model; network; revie | | 版次 | 1 | | doi | https://doi.org/10.1007/b116620 | | isbn_softcover | 978-1-4757-7275-3 | | isbn_ebook | 978-0-306-47026-4Series ISSN 1386-2944 | | issn_series | 1386-2944 | | copyright | Springer Science+Business Media New York 2000 |
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发表于 2025-3-21 16:49:48
