Title :
An OFDM based multicarrier MFSK system
Author :
Sinha, Rajnish ; Yates, Roy D.
Author_Institution :
Wireless Inf. Network Lab., Rutgers Univ., Piscataway, NJ, USA
Abstract :
This paper introduces a new spread-spectrum multiple access scheme based on multicarrier multilevel frequency shift keying (MC-MFSK). This new approach shares some of the advantages of both frequency-hopping (FH) and direct-sequence (DS) spread-spectrum systems, while overcoming some of their disadvantages. The MC-MFSK scheme transmits a symbol in parallel over multiple sub-channels using OFDM (orthogonal frequency division multiplexing). MC-MFSK has the desirable properties of frequency diversity, near-far resistance, and multipath resolvability. Arguably, this not only make MC-MFSK a simple yet competitive spread-spectrum technology but also make it a strong candidate for future high-speed wireless systems
Keywords :
OFDM modulation; frequency hop communication; frequency shift keying; multi-access systems; multipath channels; spread spectrum communication; DS-SS systems; MC-MFSK; OFDM; OFDM based multicarrier MFSK system; direct-sequence spread-spectrum; frequency diversity; frequency-hopping; high-speed wireless systems; multicarrier multilevel frequency shift keying; multipath resolvability; multiple access system; near-far resistance; orthogonal frequency division multiplexing; spread-spectrum multiple access; Delay effects; Frequency diversity; Laboratories; OFDM; Oscillators; Redundancy; Shift registers; Signal resolution; Spread spectrum communication; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886662
