The Evolution of Untethered Communications (1997) / Chapter Skim
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EXECUTIVE SUMMARY
EXECUTIVE SUMMARY
Pages 1-9
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From page 1... ...
The subscriber base for wireless communications services is growing 15 times faster than the subscriber base for wired services; by 2010 wireless and wired systems are expected to serve equal numbers of users. The vigorous public demand for wireless services is fueling intense industrial and government activity, including research and development (R&D)
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From page 2... ...
technologies. In the Gulf War, for example, the military obtained satellite-transmitted positioning data using commercial receivers, which were rapidly fielded to meet an urgent military need.
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From page 3... ...
As of 1997 there were more than 50 million cellular subscribers in the United States. The portfolio of wireless services now available in the commercial marketplace includes a wide range of telephony, paging, and data applications delivered over a variety of service offerings, ranging from land-based mobile radio to cellular and satellite communications.
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From page 4... ...
The European Union, which supports cooperative research leading to development of precompetitive technologies, has a vision of the future extending beyond 2002, when universal mobile telecommunication services are scheduled to be deployed. That vision and various industry road maps suggest that, by early in the twenty-first century, commercial wireless communications will achieve the "anytime, anywhere" paradigm.
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From page 5... ...
However, the integration of ATM and Internet protocols into wireless battlefield communications will require sophisticated link protocols. Industry is addressing these issues, but the DOD can ensure that its needs are met only by participating in standardssetting activities to influence technology directions and by testing emerging COTS products in battlefield exercises.
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From page 6... ...
by 2002 System access Anyone who can pay Universal Interoperability of Increasingly important Required for all defense systems networks and foreign allies Security Increasingly important Critical Antijam May become an issue with Critical widespread system use Low probability of detection/ interception Not an issue at this time Critical Robustness of Yes, under moderate systems and conditions equipment Interference Somewhat important rejection Yes, under extreme conditions (e.g., extreme temperatures, shock, vibrations, submersion) Critical elements, would support realistic analyses of complex military networks and the design of appropriate protocols and optimization algorithms.
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From page 7... ...
To use commercial technologies effectively, the DOD will have to take special measures to promote the development and acquisition of COTS products that can be integrated into systems that meet specialized military requirements. Current commercial R&D and standards activities seek to enable the transmission of many types of information, including data, video, and images, to and from portable wireless devices.
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From page 8... ...
The first three recommendations identify organizational changes that DOD should make to foster an environment conducive to the absorption of state-of-the-art commercial wireless communications technologies. The other nine recommendations identify research that should be undertaken by DARPA to fill gaps in commercial development efforts and ensure that advanced wireless systems meet military needs.
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From page 9... ...
DARPA should carry out research and demonstration projects designed to field software radio technology for military applications.
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