NTRS - NASA Technical Reports Server

Back to Results
Analysis and Testing of Mobile Wireless NetworksWireless networks are being used to connect mobile computing elements in more applications as the technology matures. There are now many products (such as 802.11 and 802.11b) which ran in the ISM frequency band and comply with wireless network standards. They are being used increasingly to link mobile Intranet into Wired networks. Standard methods of analyzing and testing their performance and compatibility are needed to determine the limits of the technology. This paper presents analytical and experimental methods of determining network throughput, range and coverage, and interference sources. Both radio frequency (BE) domain and network domain analysis have been applied to determine wireless network throughput and range in the outdoor environment- Comparison of field test data taken under optimal conditions, with performance predicted from RF analysis, yielded quantitative results applicable to future designs. Layering multiple wireless network- sooners can increase performance. Wireless network components can be set to different radio frequency-hopping sequences or spreading functions, allowing more than one sooner to coexist. Therefore, we ran multiple 802.11-compliant systems concurrently in the same geographical area to determine interference effects and scalability, The results can be used to design of more robust networks which have multiple layers of wireless data communication paths and provide increased throughput overall.
Document ID
Document Type
Preprint (Draft being sent to journal)
Alena, Richard (NASA Ames Research Center Moffett Field, CA United States)
Evenson, Darin (Naval Postgraduate School Monterey, CA United States)
Rundquist, Victor (DeAnza Coll. CA United States)
Clancy, Daniel
Date Acquired
September 7, 2013
Publication Date
January 1, 2002
Subject Category
Communications and Radar
Report/Patent Number
IEEE Paper-410
Meeting Information
IEEE Aerospace Conference(Big Sky, MT)
Distribution Limits
Public Use Permitted.

Available Downloads

NameType 20020088428.pdf STI