| An Iterative Power Allocation Algorithm for Group-wise Space-Time Block Coding Systems |
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| 作者姓名： | 张红伟 张海滨 宋文涛 罗汉文 刘兴钊 |
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| 作者单位： | Dept.of Electronic Eng. Shanghai Jiaotong Univ.，Dept.of Electronic Eng.，Shanghai Jiaotong Univ.，Dept.of Electronic Eng.，Shanghai Jiaotong Univ.，Dept.of Electronic Eng.，Shanghai Jiaotong Univ.，Dept.of Electronic Eng.，Shanghai Jiaotong Univ.，Shanghai 200240，China Shanghai 200240，China Shanghai 200240，China Shanghai 200240，China Shanghai 200240，China |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | An iterative transmit power allocation (PA) algorithm was proposed for group-wise space-time block coding (G-STBC) systems with group-wise successive interference cancellation (GSIC) receivers. Group-wise interference suppression (GIS) filters are employed to separate each group's transmit signals from other interferences and noise. While the total power on all transmit symbols is constrained, all transmit PA coefficients are updated jointly according to the channel information at each iteration. Through PA, each detection symbol has the same post-detection signal to interference-and-noise ratio (SINR). The simulation results verify that the proposed PA algorithm converges at the equilibrium quickly after few iterations, and it achieves much lower bit error rates than the previous single symbol SIC PA and the fixed ratio PA algorithms for G-STBC systems with GSIC receivers .
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An Iterative Power Allocation Algorithm for Group-wise Space-Time Block Coding Systems |
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| ZHANG Hong-wei,ZHANG Hai-bin,SONG Wen-tao,LUO Han-wen,LIU Xing-zhao.An Iterative Power Allocation Algorithm for Group-wise Space-Time Block Coding Systems[J].Journal of Shanghai Jiaotong university,2007,12(4):481-485. |
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| Authors: | ZHANG Hong-wei ZHANG Hai-bin SONG Wen-tao LUO Han-wen LIU Xing-zhao |
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| Abstract: | An iterative transmit power allocation (PA) algorithm was proposed for group-wise space-time block coding (G-STBC) systems with group-wise successive interference cancellation (GSIC) receivers. Group-wise interference suppression (GIS) filters are employed to separate each group's transmit signals from other interferences and noise. While the total power on all transmit symbols is constrained, all transmit PA coefficients are updated jointly according to the channel information at each iteration. Through PA, each detection symbol has the same post-detection signal to interference-and-noise ratio (SINR). The simulation results verify that the proposed PA algorithm converges at the equilibrium quickly after few iterations, and it achieves much lower bit error rates than the previous single symbol SIC PA and the fixed ratio PA algorithms for G-STBC systems with GSIC receivers . |
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| Keywords: | power allocation (PA) group-wise space-time block coding (G-STBC) group-wise interference suppression (GIS) group-wise successive interference cancellation (GSIC) |
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