Title :
Soft orthogonal phase shift keying (SOPK) modulation with OVSF-MAC for UMTS
Author :
Pereira, João Da Silva ; Silva, Heurique José Almeida da
Author_Institution :
Departamento de Engenharia Informatica, Escola Superior de Tecnologia e Gestao, Leiria, Portugal
Abstract :
Various digital modulation techniques have been extensively studied and have found numerous applications in wireless communication systems. One example of this success is the QPSK modulation used in the third generation Universal Mobile Telecommunication System (UMTS). This paper presents a new modulation method that produces less adjacent channel interference (ACI) and lower bit error rate (BER) than the QPSK modulation with linear amplification. We call this new modulation technique Soft Orthogonal Phase shift Keying (SOPK). This modulation is perfect for a new coding method OVSF-MAC that can at least duplicate the binary throughput in the UMTS down link channel.
Keywords :
3G mobile communication; adjacent channel interference; codes; error statistics; quadrature phase shift keying; radio links; spread spectrum communication; ACI; BER; CPM; OVSF-MAC; QPSK; SOPK modulation; UMTS; Universal Mobile Telecommunication System; adjacent channel interference; binary throughput; bit error rate; coding method; continuous phase modulation; digital modulation; downlink channel; linear amplification; soft orthogonal phase shift keying; third generation system; wireless communication systems; 3G mobile communication; Bit error rate; Digital modulation; Interchannel interference; Modulation coding; Phase modulation; Phase shift keying; Quadrature phase shift keying; Throughput; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1045443
