Generalized Space Shift Keying （GSSK） modulation is a low-complexity spatial nmltiplexing technique for nmltiple-antenna wireless systems. However, effective transmit antenna combinations have to be preselected, and...Generalized Space Shift Keying （GSSK） modulation is a low-complexity spatial nmltiplexing technique for nmltiple-antenna wireless systems. However, effective transmit antenna combinations have to be preselected, and there exist redundant antenna combinations which are not used in GSSK. In this paper, a novel adaptive mapping scheme for GSSK modulation, named as Adaptive Mapping Generalized Space Shift Keying （AMGSSK）, is presented. Compared with GSSK, the antenna combinations are updated adaptively according to the Channel State Inforrmtion （CSI） in the proposed AMGSSK system, and the perfonrance of average Symbol Error Rate （SER） is reduced considerably. In the proposed scheme, two algorithrrs for selecting the optimum antenna combinations are described. The SER perfonmnce of AMGSSK is analyzed theoretically, and validated by Monte Carlo sinmlation. It is shown that the proposed AMGSSK scheme has good perfonmnce in SER and spectral efficiency.展开更多
In this paper,the performance analysis of cooperative space shift keying(SSK)system with dual hop amplify and forward(AF)in receive correlated Rayleigh channel is presented.By means of the performance analysis,a close...In this paper,the performance analysis of cooperative space shift keying(SSK)system with dual hop amplify and forward(AF)in receive correlated Rayleigh channel is presented.By means of the performance analysis,a closed form approximate expression of the average bit error rate(BER)is derived for the performance evaluation.With this expression,in a high signal to noise ratio(SNR)region,a tight closed form asymptotic BER of the system is also derived.It can simplify the calculation of average BER and provide effective evaluation for asymptotic performance.By minimizing this asymptotic BER expression,a suboptimum power allocation(PA)scheme is developed,and the closed form PA coefficients are obtained.Simulation indicates that the suboptimal PA scheme outperforms the conventional equal PA scheme,and its performance is very close to that of the exhaustive search based optimal PA scheme but with low complexity.Moreover,the system performance under the spatially correlated channel is worse than that in spatially independent channel due to the effect of spatial correlation.展开更多
基金supported partially by the National Key Basic Research Program of China under Grant No.2007CB310605the Science and Technology Development Fund of Tianjin Colleges and Universities under Grant No.20080708the Research Fund of Tianjin University of Technology and Education under Grants No.KJ09-012,No.KJ10-06
文摘Generalized Space Shift Keying （GSSK） modulation is a low-complexity spatial nmltiplexing technique for nmltiple-antenna wireless systems. However, effective transmit antenna combinations have to be preselected, and there exist redundant antenna combinations which are not used in GSSK. In this paper, a novel adaptive mapping scheme for GSSK modulation, named as Adaptive Mapping Generalized Space Shift Keying （AMGSSK）, is presented. Compared with GSSK, the antenna combinations are updated adaptively according to the Channel State Inforrmtion （CSI） in the proposed AMGSSK system, and the perfonrance of average Symbol Error Rate （SER） is reduced considerably. In the proposed scheme, two algorithrrs for selecting the optimum antenna combinations are described. The SER perfonmnce of AMGSSK is analyzed theoretically, and validated by Monte Carlo sinmlation. It is shown that the proposed AMGSSK scheme has good perfonmnce in SER and spectral efficiency.
基金supported in part by the Fundamental Research Funds for the Central Universities of NUAA (No.kfjj20180405)the Natural Science Foundation of Jiangsu in China (No. BK20181289)the Six Talent Peaks Project in Jiangsu (No.2015-DZXX-007)
文摘In this paper,the performance analysis of cooperative space shift keying(SSK)system with dual hop amplify and forward(AF)in receive correlated Rayleigh channel is presented.By means of the performance analysis,a closed form approximate expression of the average bit error rate(BER)is derived for the performance evaluation.With this expression,in a high signal to noise ratio(SNR)region,a tight closed form asymptotic BER of the system is also derived.It can simplify the calculation of average BER and provide effective evaluation for asymptotic performance.By minimizing this asymptotic BER expression,a suboptimum power allocation(PA)scheme is developed,and the closed form PA coefficients are obtained.Simulation indicates that the suboptimal PA scheme outperforms the conventional equal PA scheme,and its performance is very close to that of the exhaustive search based optimal PA scheme but with low complexity.Moreover,the system performance under the spatially correlated channel is worse than that in spatially independent channel due to the effect of spatial correlation.
