Title :
Performance of a FH Multilevel FSK for Mobile Radio in the Presence of Nonsynchronous Users
Author :
Agusti, Ramón ; Junyent, Gabrieí
Author_Institution :
E.T.S. Ingenieros de Telecomunicaci?n, Jorge Girona Salgado s/n, Barcelona-34. Spain.
Abstract :
This paper considers a Frequency Hopped Multilevel Frequency Shif Keying (FH-MFSK) spread spectrum communication system applied to mobile radio-telephony. We pre sent a mobile-to-base transmission model that allows to study system impairments, such as interference from nonsynchronous users and adjacent frequency channels in presence of matched tuned receiver filters. We have obtained results with mobile-to-base communication of 32 Kb/s per user in a 20 MHz (one-way) bandwidth. A bit error probability less than 10-3 can be maintained with up to 110 simultaneous users for practical average SNR ratio of 25 dB.
Keywords :
Bandwidth; Error probability; Frequency shift keying; Interchannel interference; Land mobile radio; Matched filters; Mobile communication; Power control; Signal generators; Spread spectrum communication;
Conference_Titel :
Military Communications Conference - Progress in Spread Spectrum Communications, 1982. MILCOM 1982. IEEE
DOI :
10.1109/MILCOM.1982.4805979
