FREQUENCY HOPPING CODE DIVISION MULTIPLE ACCESS FOR MOBILE CELLULAR COMMUNICATIONS

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$49,664.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
17414
Agency Tracking Number:
17414
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
85 Old Shore Rd, Suite 200, Port Washington, NY, 11050
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Tuvia Apelewicz
Director Of R And D
(516) 883-0760
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS PROPOSAL IS TO CONDUCT RESEARCH IN A NOVEL FREQUENCY HOPPING CODE DIVISION MULTIPLE ACCESS (FH/CDMA) PERSONAL COMMUNICATIONS NETWORK (PCN). THIS MOBILE CELLULAR COMMUNICATIONS SYSTEM, WHICH IS TO BE DESIGNED TO MAXIMIZE THE NUMBER OF USERS PER CELL, CAN OPERATE IN A FREQUENCY BAND CONTAINING OTHER USERS. IN ORDER TO MAXIMIZE THE NUMBER OF USERS, SYNCHRONOUS FH/CDMA WILL BE EMPLOYED. FORWARD ERROR CORRECTION AND ERASURE DETECTION AND CORRECTION WILL BE EMPLOYED SINCE INTERFERENCE CAN BE DETECTED. SLOW AND FAST HOPPING WILL BE STUDIED TO OPTIMIZE PERFORMANCE IN A MULTIPATH ENVIRONMENT. ALSO, STANDARD HOPPING CODES SUCH AS PN AND GOLD WILL BE COMPARED WITH SOME NEW IDEAS ON HOP CODES SUCH AS REED-SOLOMON HOPPING PATTERNS. THE RESEARCH WE PROPOSE WILL EXTEND OUR PRIOR RESEARCH IN THE DESIGN OF A DIRECT SEQUENCE CDMA CELLULAR SYSTEM, WHICH LED TO THE FCC AWARDING AN EXPERIMENTAL LICENSE TO MILLICOM,INC. TO OPERATE ON A CO-PRIMARY BASIS WITH EXISTING MICROWAVE USERS AND EXPERIMENTALLY DEMONSTRATE THE PRACTICALITY OF SHARED USE. THE GOAL OF THIS STUDY IS A FH/CDMA SYSTEM WHICH COULD BE EMPLOYED IN LIEU OF A DS/CDMA SYSTEM.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government