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多用戶自適應(yīng)調(diào)制OFDM系統(tǒng)的高效子載波分配方案

劉培,  葛建華,  劉剛

劉培, 葛建華, 劉剛. 多用戶自適應(yīng)調(diào)制OFDM系統(tǒng)的高效子載波分配方案[J]. 電子與信息學(xué)報, 2004, 26(6): 871-875.
引用本文: 劉培, 葛建華, 劉剛. 多用戶自適應(yīng)調(diào)制OFDM系統(tǒng)的高效子載波分配方案[J]. 電子與信息學(xué)報, 2004, 26(6): 871-875.
Liu Pei, Ge Jian-hua, Liu Gang. An Efficient Sub-carrier Allocation Scheme for Multiuser OFDM Systems Using Adaptive Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(6): 871-875.
Citation: Liu Pei, Ge Jian-hua, Liu Gang. An Efficient Sub-carrier Allocation Scheme for Multiuser OFDM Systems Using Adaptive Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(6): 871-875.

多用戶自適應(yīng)調(diào)制OFDM系統(tǒng)的高效子載波分配方案

An Efficient Sub-carrier Allocation Scheme for Multiuser OFDM Systems Using Adaptive Modulation

  • 摘要: 為保證用戶的子載波分配的實時高效，該文給出了一種能夠滿足和適應(yīng)未來移動多媒體通信要求的高效頻帶分配方案。它是基于自適應(yīng)調(diào)制的OFDM系統(tǒng)的。該方案使用了一種基于貪婪算法的高效算法，這種算法簡單易于理解，復(fù)雜度低，仿真結(jié)果表明其性能優(yōu)良，接近于最優(yōu)解。
    Abstract: In this paper, a sub-carrier allocation scheme is proposed for the future mul-tiuser mobile multimedia communication systems, which, is based on Orthogonal Frequency Division Multiplexing(OFDM) using adaptive modulation. This scheme uses an algorithm based on a rapacious optimal algorithm. Simulation result shows that this allocation algo-rithm is close to the optimum at effectiveness and efficiency with much fewer computations.
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  • Reimers U.Digital video broadcasting.IEEE Commun.Mag.,1998,36(6):104-110.[2]Wang C Y,Cheng R S,Letaief K B,Murch R D.Multiuser sub-carrier allocation for OFDM transmission using adaptive modulation.Proc.IEEE Vehicular Technology Conf.(VTC99),Houston,TX,1999:479-483.[3]Czylwik A.Adaptive OFDM for wideband radio channels.Proc.IEEE Global Telecommunications Conf.(GLOBECOM96).London,U.K.,1996:713-718.[4]Webb W T,Steele R.Variable rate QAM for mobile radio.IEEE Trans.on Commun.,1995,COM-43(7):2223-2230.[5]Rohlinng H,Grunheid R.Performance comparison of different multiple access schemes for the downlink of an OFDM communication systems.Proc.IEEE Vehicular Technology Conf.(VTC97).Phoenix,AZ,1997:1365-1369.[6]Lai S K,Cheng R S,Letaief K B,Murch R D.Adaptive trellis coded MQAM and power optimization for OFDM transmission.Proc.IEEE Vehicular Technology Conf.(VTC99).Houston,TX,1999:290-295.[7]Wahlqvist M,Ostgerg C,Beek J,Edfors O,Borjesson P.A conceptual study of OFDM-based multiple access schemes.Technical Report Tdoc 117/96,ETSI STCSMG2 meeting no.18,Helsinki,Finland,May 1996,Part Ⅰ.[8]Cimini L J Jr.,Sollenberge N R.OFDM with diversity and coding for high-bit-rate mobile data applications.Mobile Multimedia Commun.,1997,1(2):247-254. ［9］Mitsuhiro S,Ralf B,Kazuyuki S.Band Division Multiple Access (BDMA) system:a novel approach for next generation mobile telecomunication system,based on OFDM and SFH-TDMA.Proc.IEEE Vehicular Technology Conf.(VTC98).Ottowa,Canada,1998:1326-1330.[9]Khun H W.The Hungarian method for the assignment problem[J].Naval Research Logistics Quarterly.1955,2(1):83-97[10]Erceg V,et al..Channel models for fixed wireless applications.IEEE 802.16a cont.IEEE802.16.3c-01/29rl Feb.23,2001.[11]Proakis J G.Digital Communications,3rd.ed..New York:McGraw-Hill,1995:281-290.
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出版歷程
  • 收稿日期:  2003-03-10
  • 修回日期:  2003-06-23
  • 刊出日期:  2004-06-19

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