宽带电力线MIMO通信中基于能效的波束成形算法
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摘要
宽带电力线MIMO通信中,由于存在多用户干扰和共信道干扰,需要应用波束成形算法消除,由于信道状态信息不能准确获得,需要对信道进行量化反馈,故反馈误差会导致系统性能下降;针对此问题,本文提出了一种考虑量化误差影响的波束成形算法,此算法在保证用户服务质量的前提下,以最大化系统能源利用效率为优化目标,仿真验证了此波束成形算法的有效性和鲁棒性.
In broadband power line Multi-input multi-output(MIMO) communication, there are multi-user interference and co-channel interference, which needs an application of a beam forming algorithm to eliminate it. Because the channel state information cannot be accurately acquired, it needs a quantitative feedback for channels, so that the feedback error would cause a decline in performance of the system. Aiming at this problem, this paper proposes a beam forming algorithm, which considers the influences of quantization error of the algorithm. In the premise of ensuring the quality of customer service, this algorithm takes maximizing the system energy efficiency as the optimization goal. The beamforming simulation verifies the effectiveness and robustness of the algorithm.
In broadband power line Multi-input multi-output(MIMO) communication, there are multi-user interference and co-channel interference, which needs an application of a beam forming algorithm to eliminate it. Because the channel state information cannot be accurately acquired, it needs a quantitative feedback for channels, so that the feedback error would cause a decline in performance of the system. Aiming at this problem, this paper proposes a beam forming algorithm, which considers the influences of quantization error of the algorithm. In the premise of ensuring the quality of customer service, this algorithm takes maximizing the system energy efficiency as the optimization goal. The beamforming simulation verifies the effectiveness and robustness of the algorithm.
引文
1蒋伟,杨俊杰,初凤红.宽带电力线通信技术及前景展望.光通信研究,2009,35(2):38-41.
2 Galli S,Scaglione A,Wang Z.For the grid and through the grid:The role of power line communications in the smart grid.Proc.of IEEE,2011,99(6):998-1027.
3伍韵文,郭劲松,吴海东,等.宽带电力线载波MIMO系统干扰消除预编码方法.电力系统保护与控制,2015,43(3):123-126.
4李文刚,易克初,刘祖军,邵飞.改进的多用户波束赋形算法.通信学报,2009,30(12):79-84.
5 Nassar M,Lin J,Mortazavi Y,Dabak A,Kim IH,Evans BL.Local utility power line communications in the 3-500 k Hz band:Channel impairments,noise,and standards.IEEESignal Processing Magazine,Special Issue on Signal Processing Techniques for the Smart Grid,2012,29(5):116-127.
6 Han J,Choi C,Park WK,Lee I,Kim SH.PLC-based photovoltaic system management for smart home energy management system.IEEE Trans.Consumer Electron,2014,60(2):184-189.
7 Son YS,Pulkkinen T,Moon KD,Kim C.Home energy management system based on power line communication.IEEE Trans.Consumer Electron,2010,56(3):1380-1386.
8 Des Marais DJ,Strauss H,Summons RE,et al.Carbon isotope,evidence for the stepwise oxidation of the Proterozoic environment.Nature,1992,(359):605-609.
9 Berger L,Schwager A,Pagani P,Schneider D.MIMO power line communication.IEEE Communications Surveys and Tutorials,2015,17(1):106-124.
10 Home Plug Powerline Alliance,Home plug AV specification version 2.0,2012,http://www.homeplug.org.
11 Ravindran N,Jindal N.Limited feedback-based block diagonalization for the MIMO broadcast channel.IEEETrans.on selected areas in communications,2008,26(8):1473-1482.
12 Gruber F,Lampe L.On PLC channel emulation via transmission line theory.2015 International Symposium on Power Line Communications and its Applications(ISPLC).IEEE.2015.178-183.
13 Tonello AM,Versolatto F.Bottom-up statistical PLC channel modeling-Part I:Random topology model and efficient transfer function computation.IEEE Trans.on Power Delivery,2011,26(2):891-898.
2 Galli S,Scaglione A,Wang Z.For the grid and through the grid:The role of power line communications in the smart grid.Proc.of IEEE,2011,99(6):998-1027.
3伍韵文,郭劲松,吴海东,等.宽带电力线载波MIMO系统干扰消除预编码方法.电力系统保护与控制,2015,43(3):123-126.
4李文刚,易克初,刘祖军,邵飞.改进的多用户波束赋形算法.通信学报,2009,30(12):79-84.
5 Nassar M,Lin J,Mortazavi Y,Dabak A,Kim IH,Evans BL.Local utility power line communications in the 3-500 k Hz band:Channel impairments,noise,and standards.IEEESignal Processing Magazine,Special Issue on Signal Processing Techniques for the Smart Grid,2012,29(5):116-127.
6 Han J,Choi C,Park WK,Lee I,Kim SH.PLC-based photovoltaic system management for smart home energy management system.IEEE Trans.Consumer Electron,2014,60(2):184-189.
7 Son YS,Pulkkinen T,Moon KD,Kim C.Home energy management system based on power line communication.IEEE Trans.Consumer Electron,2010,56(3):1380-1386.
8 Des Marais DJ,Strauss H,Summons RE,et al.Carbon isotope,evidence for the stepwise oxidation of the Proterozoic environment.Nature,1992,(359):605-609.
9 Berger L,Schwager A,Pagani P,Schneider D.MIMO power line communication.IEEE Communications Surveys and Tutorials,2015,17(1):106-124.
10 Home Plug Powerline Alliance,Home plug AV specification version 2.0,2012,http://www.homeplug.org.
11 Ravindran N,Jindal N.Limited feedback-based block diagonalization for the MIMO broadcast channel.IEEETrans.on selected areas in communications,2008,26(8):1473-1482.
12 Gruber F,Lampe L.On PLC channel emulation via transmission line theory.2015 International Symposium on Power Line Communications and its Applications(ISPLC).IEEE.2015.178-183.
13 Tonello AM,Versolatto F.Bottom-up statistical PLC channel modeling-Part I:Random topology model and efficient transfer function computation.IEEE Trans.on Power Delivery,2011,26(2):891-898.