Title :
Noncoherent limiter-discriminator detection of standardized FQPSK and OQPSK
Author :
Lin, Jin-Song ; Feher, Kamilo
Author_Institution :
California Univ., Davis, CA, USA
Abstract :
This paper presents fast-synchronized noncoherent limiter discriminator detection of standardized FQPSK (Feher quadrature phase-shift-keying) and filtered OQPSK (offset quadrature phase-shift-keying) suitable for nonlinearly amplified (NLA) second and third generation wireless communication systems with fast fading, cochannel interference, or strong phase noise. Based on the phase characteristics of FQPSK and OQPSK, noncoherent limiter-discriminator detection is presented. Then we apply maximum-likelihood sequence estimation (MLSE) with lookup tables to improve the bit error rate (BER) performance.
Keywords :
3G mobile communication; cochannel interference; discriminators; error statistics; fading channels; limiters; maximum likelihood sequence estimation; quadrature phase shift keying; signal detection; 2G wireless communication system; 3G wireless communication system; BER performance; Feher quadrature phase shift keying; MLSE; bit error rate; cochannel interference; fast fading; maximum-likelihood sequence estimation; noncoherent limiter-discriminator detection; nonlinearly amplified wireless communication systems; offset quadrature phase shift keying; phase noise; standardized FQPSK; standardized OQPSK; Bit error rate; Fading; Interchannel interference; Maximum likelihood detection; Maximum likelihood estimation; Phase detection; Phase noise; Phase shift keying; Table lookup; Wireless communication;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200472
