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基于块调制的MIMO-OFDM系统

Block-Modulated Based MIMO-OFDM System
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摘要 该文在MIMO-OFDM系统中提出基于块调制的OFDM算法,降低了循环前缀(CP)所占的系统开销。在每个发射天线,将P个OFDM符号联合调制组帧后共用一个CP,到达接收天线后,接收帧经过分解可得到P个接收数据块,各数据块无相互间干扰。其中第p个接收数据块等于各个发射天线的第p个OFDM符号通过MIMO信道后到达接收天线的和,该文算法与传统MIMO-OFDM系统本质上传输方式相同,因而传输性能也相同,而频带效率则明显提高。 The block-modulated based OFDM algorithm is presented in MIMO-OFDM system to reduce the cost that is taken up by the Cyclic Prefix （CP）. At each transmitter antenna, P OFDM data blocks are modulated jointly and framed together to use one single CP, and after the received frame at each receiver antenna is decomposed, P received blocks are obtained without inter-block interference where the pth block is equal to the sum of the pth OFDM data block in each transmitter passing through the MIMO channel. While the transmission mode and performance of the scheme proposed are equivalent to that of conventional MIMO-OFDM system, the band efficiency is improved dramatically.
作者 王杰令 杨宏 易克初 刘祖军
机构地区 西安电子科技大学综合业务网国家重点实验室 中国空间技术研究院
出处 《电子与信息学报》 EI CSCD 北大核心 2010年第1期146-150,共5页 Journal of Electronics & Information Technology
基金 国家自然科学基金(60572148 60702060) 高等学校学科创新引智计划(B08038)资助课题
关键词 正交频分复用 频率选择性衰落 多天线系统 频带效率 OFDM Frequency selective fading MIMO system Band efficiency
分类号 TN927 [电子电信—通信与信息系统]
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参考文献15

  • 1Peng Y, Armour M D, and McGeehan J P. An investigation of dynamic subcarrier allocation in MIMO-OFDMA systems [J]. IEEE Transactions Vehicular Technology, 2007, 56(5): 2990-3005.
  • 2Kim H, Kim J, and Yang S, et al.. An effective MIMO- OFDM system for IEEE 802.22 WRAN channels[J]. IEEE Transactions on Circuits and Systems II, 2008, 55(8): 821-825.
  • 3梁学俊,朱光喜,曹汐,王德胜.基于信道反馈的MIMO-OFDM系统多用户分集研究[J].电子与信息学报,2008,30(11):2570-2574. 被引量：3
  • 4Gao F and Zeng Y. Robust subspace blind channel estimation for cyclic prefixed MIMO OFDM systems: algorithm, identifiability and performance analysis [J]. IEEE Journal on Selected Areas in Communications, 2008, 26(2): 378-388.
  • 5张建华,冯冲,刘毅,张炎炎.用于MIMO OFDM系统的定时同步算法[J].北京邮电大学学报,2009,32(1):118-121. 被引量：9
  • 6Park C and Kim G. Efficient DMT/OFDM transmission with insufficient cyclic prefix [J]. IEEE Communications Letters, 2004, 8(9): 576-578.
  • 7Xia X G. Precoded and vector OFDM systems robust to channel spectral nulls and with reduced cyclic prefix length in single transmit antenna systems [J]. IEEE Transactions on Communications, 2001, 49(8): 1363-1374.
  • 8Prasad V G S and Hari K V S, Interleaved orthogonal frequency division multiplexing (IOFDM) system [J]. IEEE Transactions on Signal Processing, 2004, 52(6): 1711-1721.
  • 9Wang X, Wu Y, and Chouinard J. On the comparison of the conventional MSE-OFDM systems [C]. Proceedings of IEEE Global Communications Conference (Globecom), San Francisco. CA. Dec. 2003. Vol.1: 35-39.
  • 10Wang X, Wu Y, and Chouinard J. On the design and performance analysis of multisymbol encapsulated OFDM systems [J]. IEEE Transactions on Vehicular Technology, 2007, 55(3): 990-1012.

二级参考文献23

  • 1Knopp R and Humblet P A. Information capacity and power control in single-cell multiuser communications[C]. Proc. IEEE Internet Commun Conf, Seattle, USA, June 1995, Vol.1 331-335.
  • 2Wong C Y, Cheng R S, and Letaief K B, et al.. Multiuser OFDM with adaptive subcarrier, bit and power allocation[J]. IEEE J. Select. Areas Commun, 1999, 17(10): 1747-1758.
  • 3Rhee W and Cioffi J M. Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[C]. Proc.IEEE Vehicular. Technology Conf, Tokyo, Japan, May 2000, Vol.2: 1085-1089.
  • 4Zhang Y and Letaief K B. Optimizing power and resource management for multiuser MIMO-OFDM systems[C]. Proc. IEEE Global TeleCommun Conf, San Francisco, USA, Dec 2003, Vol.1: 179-183
  • 5Cimini L J, Daneshrad B, and Sollenberger N R. Clustered OFDM with transmitter diversity and coding[C]. IEEE Global Commun, London, England, Nov 1996, Vol.1: 703-707.
  • 6Koorapaty H, Krasny L, and Ramesh R. Delta modulation for channel feedback in transmit diversity systems[C]. IEEE Vehicular Technology Conference, Dallas, USA, June 2005, Vol.1: 644-648.
  • 7Gesbert D and Alouini M S. How much feedback is multiuser diversity really worth[C]. Proc IEEE Internet Commun Conf, Paris, France, June 2004, Vol.1: 234-238.
  • 8Tang J and Zhang X. Cross-layer design of dynamic resource allocation with diverse QoS guarantees for MIMO-OFDM Wireless Networks[C]. IEEE International Symposium on a World Wireless, Mobile and Multimedia Networks, Taormina, Italy, June 2005: 205-212.
  • 9Goldsmith A J and Chua S. Vairable rate variable power M-QAM for fading channels[J]. IEEE Trans. on Communications, 1997, 45(10): 1218-1230.
  • 10Alouini M S and Goldsmith A J. Adaptive M-QAM modulation over Nakagami fading channels[C]. IEEE Global Commun, Phoenix, USA, Nov 1997, Vol.1: 218-223.

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电子与信息学报
2010年 第1期

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