NDLI: Comparisons of adaptive threshold control algorithms for unslotted common-spreading-code packet-radio networks

Content Provider	IEEE Xplore Digital Library
Author	Kim, I.-K. Scholtz, R.A.
Copyright Year	1992
Description	Author affiliation: Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA (Kim, I.-K.; Scholtz, R.A.)
Abstract	The authors describe adaptive threshold control algorithms for the detection of a header in an unslotted centralized packet radio system with common direct-sequence spread-spectrum modulation. Two threshold control strategies, namely, the fixed-maximum-delay (FMD) strategy and the fixed-sample-size (FSS) strategy, are analyzed for two distinct types of false-alarm events, namely, false-alarm on multiple access noise and false-alarm on a header prefix. These strategies are based on an estimate of the total noise power in the receiver. The FSS strategy achieves constant false-alarm rate on sidelobes without prior knowledge of the number of active transmitting radios. The FMD strategy achieves nearly constant false-alarm rate on sidelobes with derived knowledge of the average number of active transmitting radios. Both strategies reduce the dynamic range of the false-alarm rate on a header prefix considerably.
Starting Page	763
Ending Page	768
File Size	471374
Page Count	6
File Format	PDF
ISBN	078030585X
DOI	10.1109/MILCOM.1992.244129
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Programmable control Adaptive control Counting circuits Switches Communication system control Packet radio networks Spread spectrum communication Signal processing Centralized control Frequency selective surfaces
Content Type	Text
Resource Type	Article

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