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EVALUATION OF CDMA SYSTEM CAPACITY

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 6667
Amount: $49,901.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1988
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
10111-114 M L King Jr Hwy
Bowie, MD 20715
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 LEE D DAVISSON
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract

WE DISCUSS A SPECIFIC, INNOVATIVE DIRECT-SEQUENCE PSEUDO-NOISE (DS/PN) CODE-DIVISION MULTIPLE-ACCESS (CDMA) MOBILE SATELLITE (MSAT) SYSTEM. PROPONENTS OF CDMA CLAIM THAT INCREASED SYSTEM CAPACITY, REDUCED MOBILE TERMINAL COST, INCREASED FLEXIBILITY IN SERVICE OFFERINGS, INTERFERENCE SUPRESSION, AND INCREASED MSAT OPERATOR PROFITABILITY ARE ACHIEVABLE. DETRACTORS CLAIM THAT THE REQUIRED MOBILE TERMINAL SOPHISTICATION IS TOO COSTLY, THAT THE SYSTEM CAPACITY IS NOT INCREASED (RELATIVE TO FDMA), AND THAT THE EXISTING TECHNOLOGY BASE IS IMMATURE. TO DATE THERE HAS BEEN NO AUTHORITATIVE ANALYSIS EVALUATING THE PERFORMANCE OF CDMA. WE PROVIDE A COMPREHENSIVE PLAN FOR EVALUATING SYSTEM CAPACITY. IN ADDITION, WE PRESENT PRELIMINARY ANALYSIS RESULTS FOR THE CAPACITY OF OUR BASELINE DS/PN CDMA MSAT SYSTEM UNDER SOME SIMPLIFIED ASSUMPTIONS.

* Information listed above is at the time of submission. *

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