Advanced Multiple Access for Wireless Communications

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 26636
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Database Associates
P.o. Box 1838, Honolulu, HI, 96805
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Norman Abramson
 (808) 926-5854
Business Contact
Phone: () -
Research Institution
Multiple access protocols are used to permit large numbers of independent transmitters to share a common communication channel. CDMA was developed as a multiple access network protocol for military applications during the last forty years. Recently considerable interest in using CDMA in the civilian sector has been evident. The implementation of CDMA multiple access networks is difficult because of the use of a different spreading code for each transmitter in a given network. In addition the use of different codes for each transmitter leads to system complexities which limit the suitability of CDMA networks for certain kinds of data network applications. Recent research has shown that the use of different codes in CDMA systems is not necessary for most applications in the civilian sector, and may not be desirable even in some military applications. In this proposal we describe an applied development program to development program to develop this advanced form of CDMA. Anticipated Benefits: The results of this development program can be used to build simpler, less expensive wireless data networks for mobile/nomadic laptop computers, personal digital assistants and information appliances, in-vehicle navigation and mapping systems, and work-in-progress tracking devices for automated factories.

* information listed above is at the time of submission.

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