Title :
Performance of multicarrier MFSK in fading channels
Author :
Sinha, Rajnish ; Yates, Roy D.
Author_Institution :
Wireless Inf. Network Lab., Rutgers State Univ., Piscataway, NJ, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper evaluates the performance of an MC-MFSK (multicarrier multilevel frequency shift keying) based system in the presence of Rayleigh fading. MC-MFSK is a new spread spectrum multiple access technology with the desirable properties of frequency diversity, near-far resistance, and multipath resolvability. The MC-MFSK scheme transmits a symbol in parallel over multiple sub-channels using OFDM (orthogonal frequency division multiplexing). We assume that each sub-channel has an independent flat fading process. Since the MC-MFSK receiver employs threshold detection, the selection of a suitable threshold is also discussed. Finally, comparisons with other MFSK-based spread spectrum systems are made to demonstrate the higher capacity of this new scheme
Keywords :
OFDM modulation; Rayleigh channels; channel capacity; fading channels; frequency shift keying; mobile radio; spread spectrum communication; OFDM; Rayleigh fading; capacity; fading channels; frequency diversity; independent flat fading; multicarrier MFSK; multilevel frequency shift keying; multipath resolvability; near-far resistance; orthogonal frequency division multiplexing; performance; spread spectrum multiple access; sub-channel; threshold detection; wireless systems; Decoding; Fading; Frequency diversity; Frequency division multiplexing; Frequency shift keying; Interference; OFDM; Oscillators; Rayleigh channels; Spread spectrum communication;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956520
