Abstract
Symbol error rate (SER) of quadrature subbranch hybrid selection/maximal-ratio combining (HS/MRC) scheme for 1-D modulations in Rayleigh fading under employment of the generalized receiver (GR), which is constructed based on the generalized approach to signal processing (GASP) in noise, is investigated. diversity input branches are split into in-phase and quadrature subbranches. -ary pulse amplitude modulation, including coherent binary phase-shift keying (BPSK), with quadrature subbranch HS/MRC is investigated. GR SER performance for quadrature HS/MRC and HS/MRC schemes is investigated and compared with the conventional HS/MRC receiver. Comparison shows that the GR with quadrature subbranch HS/MRC and HS/MRC schemes outperforms the traditional HS/MRC receiver. Procedure of partial cancellation factor (PCF) selection for the first stage of hard-decision partial parallel interference cancellation (PPIC) using GR employed by direct-sequence code-division multiple access (DS-CDMA) systems under multipath fading channel in the case of periodic code scenario is proposed. Optimal PCF range is derived based on Price's theorem. Simulation confirms that the bit error rate (BER) performance is very close to potentially achieved one and surpasses the BER performance of real PCF for DS-CDMA systems discussed in the literature.
Highlights
In this paper, we investigate the generalized receiver (GR), which is constructed based on the generalized approach to signal processing (GASP) in noise [1,2,3,4,5], under quadrature subbranch hybrid selection/maximal-ratio combining (HS/MRC) for 1-D modulations in multipath fading channel and compare its symbol error rate (SER) performance with that of the traditional HS/MRC scheme discussed in [6, 7]
Results show that the GR with quadrature subbranch HS/MRC and HS/MRC schemes performs substantially better the GR with traditional HS/MRC scheme, when L is smaller than one half N, and much better than the traditional HS/MRC receiver
We have derived the optimal partial cancellation factor (PCF) range for GR first stage based on the partial parallel interference cancellation (PPIC), which is employed by direct-sequence code-division multiple access (DS-CDMA) system, with hard decisions in multipath fading channel
Summary
We investigate the generalized receiver (GR), which is constructed based on the generalized approach to signal processing (GASP) in noise [1,2,3,4,5], under quadrature subbranch hybrid selection/maximal-ratio combining (HS/MRC) for 1-D modulations in multipath fading channel and compare its symbol error rate (SER) performance with that of the traditional HS/MRC scheme discussed in [6, 7]. Obtained results show the better performance is achieved by this quadrature subbranch HS/MRC scheme in comparison with the traditional HS/MRC scheme for the same value of average signal-tonoise ratio (SNR) per diversity branch. Another problem discussed is the problem of partial cancellation factor (PCF) in a DS-CDMA system with multipath fading channel.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
