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This paper presents a fully integrated GPS receiver with 2.4 dB NF, 1.2mm2 area, and 13 mA of current in 55 nm CMOS. NF degrades by only 0.1/0.5/0.1 dB in the presence of GSM, DCS, and WiFi blockers respectively. By using current mode operation, push-pull topology, current reuse techniques, and modular Gm-TIA stages, area is about half and power is about 1/3 of previously published GPS receivers while...
Geographical information systems for PCs and mobile devices are rapidly gaining popularity. This paper presents a new server-based GIS architecture which is unique in that it is a totally WAP browser based application with user interface in HTML or WML and J2ME and relying entirely on Internet in mobile devices via wireless LANs or GPRS for accessibility. Wireless Internet-based distributed GIS (WIEOS)...
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