IEEE Spectrum
Selection diversity combining with multiple antennas for MM-wave indoor wireless channels
IEEE Journal on Selected Areas in Communications
Performance of wideband mobile channel with perfect synchronism BPSK vs QPSK DS-CDMA
WSEAS Transactions on Computer Research
Performance of wideband mobile channel on synchronous DS-CDMA
WSEAS TRANSACTIONS on COMMUNICATIONS
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The combined effect of antenna diversity and spread spectrum (SS) diversity for a direct sequence code division multiple access (DS-CDMA) system using differential binary phase-shift keying (DBPSK) modulation is evaluated. Both maximal ratio combining (MRC) and selection diversity (SD) are considered and the bit error rate (BER) performance for four following diversity schemes are compared: (1) SS diversity with MRC and antenna diversity with SD; (2) SS diversity with SD and antenna diversity with MRC; (3) MRC of both SS diversity and antenna diversity; (4) SD of both SS diversity and antenna diversity. It is shown that antenna diversity with MRC and SS diversity with selection has a performance very close to that of antenna diversity and SS diversity both with MRC.