Mobile wireless computing: challenges in data management
Communications of the ACM
WebExpress: a system for optimizing Web browsing in a wireless environment
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
MobiCom '97 Proceedings of the 3rd annual ACM/IEEE international conference on Mobile computing and networking
WebExpress: a client/intercept based system for optimizing Web browsing in a wireless environment
Mobile Networks and Applications - Special issue: mobile networking in the Internet
The Data Compression Book
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IBM eNetworkTM Emulator Express is an IBM program product that optimizes the operation of Telnet 3270 and 5250 emulation over extremely low-bandwidth networks. These optimizations enable mobile workers using laptops, notebooks, or other mobile devices to access legacy host applications effectively over wide-area wireless networks as well as low-bandwidth wireline modem connections. This paper describes how the Emulator Express system intercepts the data stream and optimizes it transparently to both the client emulator and the Telnet server. The optimizations include a new data stream caching technology, a new optimized protocol that reduces the number of Telnet negotiation flows, and traditional compression. The data stream caching technology is particularly significant because it may be applied to other distributed application domains. The results of several performance experiments are reported that illustrate the improvements in data transport volume and response time when using Emulator Express.