J. E Bartlett. W4-- The Wireless World Wide Web. In Proceedin gs of the IEEE Workshop on Mobile Computing Systems andApplications, Santa Cruz, CA, December 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....in user space and its use of a log based mechanism for monitoring network quality, were based on positive experience with similar strategies in Coda. Many systems together served as a backdrop to our thinking on fidelity: the Rover toolkit; mobile Web software such as Mobisaic [40] and W4 [2]; software embodying concepts such as dynamic documents [14] and distillation [7] commercial eraall packages such as Eudora; and numerous PDAs and pocket organizers. Examination of these systems also helped us identify an essential missing ingredient in all of their designs: effective management ....

J. E Bartlett. W4-- The Wireless World Wide Web. In Proceedin gs of the IEEE Workshop on Mobile Computing Systems andApplications, Santa Cruz, CA, December 1994.

....segment and were all on the same switch port. The standard deviations for our measurements were within 10 of the mean values. To establish the baseline performance for QRPC, we measured the latency and bandwidth of various representative network technologies. The results are summarized in Table 3. The table shows the latency for null ping pong and the throughput for sending 1 Mbyte using TCP sockets over a number of networking technologies. The throughput over CSLIP is high, because the compression that is performed by the modem on ASCII data. The 1 Mbyte of ASCII data is very ....

....I Ethemet 47 0.7 4 TCP WaveLAN 61 0.48 CSLIP14.4 500 0.02 SMTP WaveLAN 5800 0.02 CSLIP14.4 11000 0.007 Table 4: Time in milliseconds for a null QRPC (a 290 byte request with a 5 byte reply) Throughput measured in Mbit s for 16 Kbyte QRPC requests. Transport II Latency I Throughput Ethernet 8 3.6 WaveLAN 13 0.92 Table 5: Time in milliseconds to open a TCP connection, send 290 bytes, receive a 5 byte response, and close the connection. Throughput measured in Mbiffs for 16 Kbyte requests. 7.2 The Performance of QRPC To obtain insight into the performance of QRPC, we measured the costs ....

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J. Bartlett. W4--the Wireless World-Wide Web. In Workshop on Mobtle Computing Systems and Applications, pages 176- 178, Santa Cmz, CA, 1994.

....infrastructure is presented in [60] A protocol is described in which the hosts themselves serve as forwarding agents and thus constitute an impromptu mobile infrastructure. The implementation of a Web browser on an Apple Newton, communicating via a lowbandwidth wireless link is described in [19]. The strategy adopted was that of partitioning applications so that the CPU intensive processing occured on powerful servers. This was also shown to be critical to good performance. A very different approach to mobile access of the Web is described in [65] Web documents are now programs in ....

J.F. Bartlett, W4 - the Wireless World Wide Web, Proceedings of the IEEE Workshop on Mobile Computing Systems and Applications, 1994.

....Other related work includes [8] where dynamic documents are sent as Tcl scripts and interpreted at the client side to generate the actual contents of the document. The techniques of caching and prefetching pages at the client are used in [8] and also in web clients such as W [12] and W4[2] that are designed expressly to handle bandwidth and latency constraints of the wireless link. While W and W4 partition the necessary processing (to access a document) between the (wireless) client and a workstation on the wired network, 5]performs all processing at the client (to the extent ....

Joel F. Bartlett. W4 --- the wireless world wide web. In Workshop on Mobile Computing Systems and Applications, 1994.

....to the Rover architecture. The key difference between Rover and other code shipping systems is that Rover provides RDOs with a well defined object based execution environment that provides a uniform naming scheme, an application specific replication model, and QRPC. The InfoPad project [29] and W4 [3] focus on mobile wireless information access. The InfoPad project employs a dumb terminal, and offloads all functionality from the client to the server. W4 employs a similar approach for accessing the Web from a small PDA. Rover, is designed to be more flexible. Depending on the power of the ....

J. Bartlett. W4---the Wireless World-Wide Web. In Workshop on Mobile Computing Systems and Applications, pages 176--178, Santa Cruz, CA, 1994.

....leverage this available information resource and mode of interaction for all of the information needs. The map module then provides hooks or links to the information on the Web, and it is delivered on demand, similar to when a user selects a URL on a browser. There have already been some research [3] and commercial attempts at providing mobile Web browsers. 9.5 Use of Vision In the extreme case, we can think of a communion between the physical and electronic worlds, as suggested by work in augmented reality. Replace the hand held unit with a pair of goggles and as the user wanders around, ....

J. F. Bartlett. W4 --- the wireless World Wide Web. In L.-F. Cabrera and M. Sattyanarayanan, editors, Workshop on Mobile Computing Systems and Applications, pages 176--178. IEEE Computer Society Press, December 1994.

....we hope to design applications where the location of the boundary is determined automatically by the compiler, or at run time. For example, a database querying tool may optimize overall performance by executing a query on the wired workstation when the wireless link is congested. Bartlett [Bar94] recently described an implementation of a wireless personal digital assistant (PDA) application where the partition boundary was located close to the portable process on the mobile unit. Bartlett implemented a web client on an Apple Newton that communicated with a wireless modem over an analog ....

Joel F. Bartlett. W4 --- the Wireless World Wide Web. In Proceedings of the Workshop on Mobile Computing Systems and Applications, pages 176--178, Santa Cruz, CA, U.S., December 1994.

....Component Our initial implementation of a communication module consisted of a wired Internet Appletalk connection from a Apple MessagePad through a Unix Appletalk Gateway. We designed an application level protocol on top of a public domain implementation of the Appletalk protocol for Solaris[4]. This allows us to open a connection based Appletalk stream from the Apple MessagePad to a UNIX platform. We then invoked our gateway application to repacketize Appletalk packets into TCP IP packets for transmission over the Internet. This allowed for TCP IP connectivity from a Apple MessagePad ....

J. F. Bartlett. W4 --- the wireless World Wide Web. In L.-F. Cabrera and M. Sattyanarayanan, editors, Workshop on Mobile Computing Systems and Applications, pages 176-- 178. IEEE Computer Society Press, December 1994.

....in user space and its use of a log based mechanism for monitoring network quality, were based on positive experience with similar strategies in Coda. Many systems together served as a backdrop to our thinking on fidelity: the Rover toolkit; mobile Web software such as Mobisaic [40] and W4 [2]; software embodying concepts such as dynamic documents [14] and distillation [7] commercial email packages such as Eudora; and numerous PDAs and pocket organizers. Examination of these systems also helped us identify an essential missing ingredient in all of their designs: effective management ....

J. F. Bartlett. W4 --- The Wireless World Wide Web. In Proceedings of the IEEE Workshopon Mobile Computing Systems and Applications, Santa Cruz, CA, December 1994.

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Joel Bartlett. W4 - The Wireless World Wide Web. Technical report, 1994.

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Joel Bartlett. W4 - The Wireless World Wide Web. In IEEE Workshop on Mobile Systems and Applications. Dec 94.

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