Extended Range, All Weather, Wireless Local Area Network (WLAN) for Dismounted Applications

Award Information
Agency: Department of Defense
Branch: Army
Contract: DAAB07-02-P-B406
Agency Tracking Number: A012-0219
Amount: $69,947.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11315 Chestnut Ridge Ct., Fort Wayne, IN, 46814
DUNS: 090575890
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jamshid Nazari
 (219) 625-5672
Business Contact
 Hengameh Nazari
Title: Business Manager
Phone: (219) 625-5672
Email: hengameh.nazari@appcominc.com
Research Institution
"Implementing a wireless LAN system for dismounted soldiers presents a number of problems that distinguish it from a commercial LAN system. Some of these unique, difficult problems include the lack of any in-place network support system, severe multi-pathand fading conditions, and mobility requirements that need extended ranges of coverage. In addition to communication performance, the LAN units must be small, light weight, battery operated, and easily carried by the dismounted soldier. Perhaps thebiggest challenge is getting adequate communication range in a severe channel environment. Although network relaying of data packets can solve this problem to some extent, it inherently relies on a density of nodes and/or the availability of accesspoints. Neither of these conditions can be counted on in a tactical environment. Thus extending range point-to-point must be addressed. Range extension of a point-to-point link in a multi-path and fading environment can be achieved by adding diversityto the communication waveform. Current research in this area is focused on the use of antennas to obtain spatial diversity. Because of the mobility of the dismounted soldier, additional diversity techniques must be used in combination with the spatialdiversity to achieve operational reliability. For this study we propose multiple antenna inputs in combination with a frequency hopping waveform to achieve viable range extension in a foliage

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

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