Title :
Multiple-access performance limits with time hopping and pulse position modulation
Author :
Ramírez-Mireles, Fernando ; Scholtz, Robert A.
Author_Institution :
Commun. Sci. Inst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
The use of spread spectrum time hopping in combination with pulse position modulation for multiple access communications is studied. The multiple access performance is described in terms of the number of users supported by the system for a given bit error rate and bit transmission rate. Expressions for the maximum number of users and maximum transmission capacity in bits per second are found. Asymptotic values for these quantities are derived
Keywords :
AWGN channels; channel capacity; multi-access systems; pulse position modulation; spread spectrum communication; AWGN channel; PPM signals; bit error rate; bit transmission rate; impulse radio modulation; maximum number of users; maximum transmission capacity; multiple access communications; performance limits; pulse position modulation; spread spectrum time hopping; Error probability; Modular construction; Performance analysis; Pulse modulation; Signal analysis; Signal to noise ratio; System performance; Transmitters; Transmitting antennas; Ultra wideband antennas;
Conference_Titel :
Military Communications Conference, 1998. MILCOM 98. Proceedings., IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4506-1
DOI :
10.1109/MILCOM.1998.722184
