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基于寬帶突發(fā)單載波頻域均衡傳輸?shù)臅r(shí)域精細(xì)信道估計(jì)方法

吳釗 張彧 姜龍 宋健

吳釗, 張彧, 姜龍, 宋健. 基于寬帶突發(fā)單載波頻域均衡傳輸?shù)臅r(shí)域精細(xì)信道估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1166-1172. doi: 10.11999/JEIT150682
引用本文: 吳釗, 張彧, 姜龍, 宋健. 基于寬帶突發(fā)單載波頻域均衡傳輸?shù)臅r(shí)域精細(xì)信道估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1166-1172. doi: 10.11999/JEIT150682
WU Zhao, ZHANG Yu, JIANG Long, SONG Jian. Time-domain Fine Channel Estimation Based on Broadband Burst Single-carrier Frequency Domain Equalization Transmission[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1166-1172. doi: 10.11999/JEIT150682
Citation: WU Zhao, ZHANG Yu, JIANG Long, SONG Jian. Time-domain Fine Channel Estimation Based on Broadband Burst Single-carrier Frequency Domain Equalization Transmission[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1166-1172. doi: 10.11999/JEIT150682

基于寬帶突發(fā)單載波頻域均衡傳輸?shù)臅r(shí)域精細(xì)信道估計(jì)方法

doi: 10.11999/JEIT150682
基金項(xiàng)目: 

國(guó)家973科技項(xiàng)目 (2012CB316000),國(guó)家重大專項(xiàng)(2015ZX03002008),國(guó)家電網(wǎng)項(xiàng)目([2015]404-41)

Time-domain Fine Channel Estimation Based on Broadband Burst Single-carrier Frequency Domain Equalization Transmission

Funds: 

The National 973 Project of China (2012CB 316000), The National Science and Technology Major Project?of China (2015ZX03002008), The National Power Grid Technology Project of China ([2015]404-41)

  • 摘要: 單載波頻域均衡(SC-FDE)是寬帶無線通信系統(tǒng)中一種具有競(jìng)爭(zhēng)力的解決方案,獲得了廣泛的關(guān)注和研究。SC-FDE方案不僅抗多徑能力出色、復(fù)雜度低,且具有比正交頻分復(fù)用(OFDM)信號(hào)更低的峰均比值。在突發(fā)SC- FDE系統(tǒng)中,接收機(jī)需要利用訓(xùn)練序列快速獲取信道的特征信息,以避免解調(diào)性能損失。傳統(tǒng)的基于訓(xùn)練序列的信道估計(jì)方法并不適合寬帶猝發(fā)SC-FDE系統(tǒng),難以兼顧估計(jì)準(zhǔn)確性和復(fù)雜度。該文提出一種基于時(shí)域訓(xùn)練序列的精細(xì)信道估計(jì)方法。該方法利用時(shí)域PN序列得到信道參數(shù)的最大似然估計(jì)值,并利用信道稀疏的特征,根據(jù)信道噪聲強(qiáng)度對(duì)信道估計(jì)值進(jìn)行噪聲抑制處理。仿真表明:與傳統(tǒng)信道估計(jì)方法相比,該信道估計(jì)方法能取得更高的估計(jì)精度,且具有較低的實(shí)現(xiàn)復(fù)雜度。
  • GOLDSMITH A. Wireless Communications[M]. Cambridge University Press, New York, 2005: 316-319.
    SOUTO N, DINIS R, and SILVA J C. Impact of channel estimation errors on SC-FDE systems[J]. IEEE Transactions on Communications, 2014, 62(5): 1530-1540.
    WANG J, YANG Z X, PAN C Y, et al. Iterative padding subtraction of the PN sequence for the TDS-OFDM over broadcast channels[J]. IEEE Transactions on Consumer Electronics, 2005, 51(4): 1148-1152.
    LARSSON E G, LIU G, LI J, et al. Joint symbol timing and channel estimation for OFDM based WLANs[J]. IEEE Communications Letters, 2001, 5(8): 325-327.
    FERNANDEZ-Getino GARCIA M J, PAEZ-Borrallo J M, and ZAZO S. DFT-based channel estimation in 2D-pilot- symbol-aided OFDM wireless systems[C]. Proceedings of 2001 IEEE Vehicular Technology Conference (VTC), Rhodes Island, Greece, 2001, 2: 810-814.
    KANG Y, KIM K, and PARK H. Efficient DFT-based channel estimation for OFDM systems on multipath channels [J]. IET Communications, 2007, 1(2): 197-202.
    YANG F, WANG J, WANG J, et al. Novel channel estimation method based on PN sequence reconstruction for Chinese DTTB system[J]. IEEE Transactions on Consumer Electronics, 2008, 54(4): 1583-1589.
    MA X L, FAN T L, and DU Y F. An improved DFT-based channel estimation algorithm for OFDM system on time- varying multipath fading channels[J]. Advanced Materials Research, 2014, 989: 3786-3789.
    XIONG X, JIANG B, GAO X, et al. DFT-based channel estimator for OFDM systems with leakage estimation[J]. IEEE Communications Letters, 2013, 17(8): 1592-1595.
    KIM K J, HWANG H G, CHOI K J, et al. Low-complexity DFT-based channel estimation with leakage nulling for OFDM systems[J]. IEEE Communications Letters, 2014, 18(3): 415-418.
    FAHMY Y A, HAFEZ H, and KHARIY M M. Time domain leakage in DFT-based channel estimation for OFDM systems with guard bands[J]. International Journal of Communication Systems, 2015, 28(2): 250-261.
    張旭東, 陸明泉. 離散隨機(jī)信號(hào)處理[M]. 北京: 清華大學(xué)出版社, 2005: 56-59.
    姜龍, 張彧, 萬曉峰. 無線突發(fā)通信信道估計(jì)及FPGA實(shí)現(xiàn)方法[J]. 電視技術(shù), 2010, 34(1): 94-96.
    JIANG Long, ZHANG Yu, and WAN Xiaofeng. Wireless burst communication channel estimation and realization on FPGA[J]. Video Engineering, 2010, 34(1): 94-96.
    戚晨皓, 吳樂南, 朱鵬程. 認(rèn)知無線電中的稀疏信道估計(jì)與導(dǎo)頻優(yōu)化[J]. 電子與信息學(xué)報(bào), 2014, 36(4): 763-768.
    QI Chenhao, WU Lenan, and ZHU Pengcheng. Sparse channel estimation and pilot optimization for cognitive radio[J]. Journal of Electronics Information Technology, 2014, 36(4): 763-768.
    Recommendation I. 1225, Guidelines for evaluation of radio transmission technologies for IMT-2000[J]. International Telecommunication Union, 1997.
    于洋, 譚學(xué)治. 基于信道分類和自適應(yīng)調(diào)制編碼的認(rèn)知無線電決策引擎[J]. 電子與信息學(xué)報(bào), 2014, 36(2): 371-376.
    YU Yang and TAN Xuezhi. Cognitive radio decision engine based on channel classification and adaptive modulation and coding[J]. Journal of Electronics Information Technology, 2014, 36(2): 371-376.
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出版歷程
  • 收稿日期:  2015-06-08
  • 修回日期:  2016-01-04
  • 刊出日期:  2016-05-19

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