Multiple access with time-hopping impulse modulation

Top Cited Papers

30 December 2002

proceedings article
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. 2, 447-450
https://doi.org/10.1109/milcom.1993.408628

Abstract

A time-hopping modulation format employ- ing impulse signal technology has several features which may make it attractive for multiple-access communications. These features are outlined, an estimate of the multiple- access capability of a communication system employing this format under ideal propagation conditions is presented, and emerging design issues are described. Time Hopping with Impulses The current emphasis on constant-envelope spread-spectrum modulations has caused engineers to ignore one design which has considerable potential, namely time-hopping. The tech- nology for generating and receiving pulses on the order of a nanosecond or less in width, similar in shape to one cycle of a sine wave, is available. These monocycles can be received by correlation detection virtually at the antenna terminals, making a relatively low-cost receiver possible. A typical hopping format with pulse-position data mod- ulation (PPM) is given by s(k)(t )=

Keywords

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