Abstract
Single carrier block transmission (SCBT) system has become one of the most popular modulation systems due to its low peak-to-average power ratio (PAPR), and it is gradually considered to be used for uplink wireless communication systems. In this paper, a low complexity partial parallel interference cancellation (PIC) with maximum ratio combining (MRC) technology is proposed to use for receiver to combat the intersymbol interference (ISI) problem over multipath fading channel. With the aid of MRC scheme, the proposed partial PIC technique can effectively perform the interference cancellation and acquire the benefit of time diversity gain. Finally, the proposed system can be extended to use for multiple antenna systems to provide excellent performance. Simulation results reveal that the proposed low complexity partial PIC-MRC SIMO system can provide robust performance and outperform the conventional PIC and the iterative frequency domain decision feedback equalizer (FD-DFE) systems over multipath fading channel environment.
Highlights
Over past decade, orthogonal frequency-division multiplexing (OFDM) system has become one of the most popular systems in wireless communication
In order to reduce the cost and power associated with the single input multiple output (SIMO) system, the antenna selection technique is used in the proposed SIMO system, that is, the number of the receive antenna being larger than the radio frequency (RF) modules
Simulation results are conducted to demonstrate the performance of the proposed partial parallel interference cancellation (PIC)-maximum ratio combining (MRC) system, and Table 1 is the system parameter settings
Summary
Orthogonal frequency-division multiplexing (OFDM) system has become one of the most popular systems in wireless communication This technique is seen today as a strong candidate for future generations of cellular mobile networks, but it involves the problem of high peakto-average power ratio (PAPR), it will cause power amplifier working in the nonlinear area. For single carrier block transmission (SCBT) system, it is the one of the popular themes in recent years [1,2,3,4,5,6] It can provide low PAPR performance, so we try to study the interference cancellation technique to provide the excellent bit error rate (BER) performance and reduce the computation complexity at receiver. Results of performance tests of the proposed system are given in Section 5, and Section 6 concludes the study
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