Title :
Single sideband QPSK with turbo equalization for mobile communications
Author :
Pitakdumrongkija, Boonsarn ; Suzuki, Hiroshi ; Suyama, Satoshi ; Fukawa, Kazuhiko
Author_Institution :
Tokyo Inst. of Technol., Japan
fDate :
30 May-1 June 2005
Abstract :
The paper proposes a novel single sideband (SSB) QPSK modulation scheme that can guarantee half of the standard QPSK bandwidth by using only one carrier, in contrast with conventional schemes. Since the proposed scheme suffers from intersymbol interference (ISI), even in the additive white Gaussian noise (AWGN) channel, a soft-canceller (SC)/simplified-minimum mean square error (S-MMSE) type equalizer is employed. Computer simulation results show that the proposed single sideband QPSK can outperform 16QAM with the turbo code in a flat fading channel.
Keywords :
AWGN channels; equalisers; fading channels; intersymbol interference; least mean squares methods; mobile radio; quadrature phase shift keying; turbo codes; 16QAM; AWGN channel; ISI; additive white Gaussian noise channel; flat fading channel; intersymbol interference; mobile communications; simplified-minimum mean square error; single sideband QPSK; soft-canceller; turbo code; turbo equalization; AWGN; Additive white noise; Amplitude modulation; Bandwidth; Computer simulation; Equalizers; Intersymbol interference; Mean square error methods; Mobile communication; Quadrature phase shift keying;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543349
