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標題: 應用於多重輸入多重輸出正交分頻多工 之低複雜同步電路設計
Low Complexity Synchronization Circuit Design for MIMO-OFDM Systems
作者: 林尚賢
Lin, Sun-Shian
關鍵字: synchronization;同步;carrier frequency offset;MIMO;載波頻率偏移;多重輸入多重輸出
出版社: 電機工程學系所
引用: [1] EWC HT PHY Specification, Enhanced Wireless Consortium publication,V1.27, 2005. [2] IEEE Std. 802.11a, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-speed Physical Layer in the 5GHz Band, 1999. [3] S. R. Saunders, Antennas and Propagation for Wireless Communication Systems, Wiley, 2001. [4] L. C. Godara, Handbook of Antennas inWireless Communications, CRC Press, 2001. [5] J. Heiskala and J. Terry, OFDM Wireless LANs: A Theoretical and Practical Guide, 2001. [6] J. Medbo and P. Schramm, “Channel models for HIPERLAN/2,” ETSI/BRAN document no. 3ERI085B. [7] IEEE 802 11-03/940r2, TGn Channel Models. [8] R. van Nee, R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000. [9] M. Jankiraman, Space-time codes and MIMO systems, ArtechHouse, 2004. [10] K. Fazel, S. Kaiser, Multi-carrier and Spread Spectrum Systems, John Wiley& Sons, 2003. [11] K. Lee and D. Williams, “ A space-frequency transmitter diversity technique for OFDM systems,” in Proc. IEEE GLOBECOM, vol. 3, pp. 1473-1477, 2000. [12] Y. Gong and K. B. Letaief, “Space-frequency-time coded OFDM for broadband wireless communications,”in Proc. IEEE GLOBECOM, San Antonio, TX, pp, 519-523, Nov. 2001. [13] C. S. Peng and K. A. Wen “Synchronization for carrier frequency offset in wireless LAN 802.11a system, The 5th International Symposium on Wireless Personal Multimedia Communications, vol. 3,pp. 1083-1087, Oct. 2002. [14] 陳明章,“Design of 802.11a Baseband Transmitter and Synchronization,” 國立交通大學碩士論文, 中華民國九十二年。 [15] 許家禎, “Realization of Synchronization for OFDM-Based Wireless LAN System,” 國立中興大學碩士論文, 中華民國九十四年七月。 [16] 黃章閔, “應用於無線區域網路之正交分頻多工同步電路設計,” 國立中興大學碩士論文,中華民國九十六年七月。 [17] IEEE 802 11-03/814r19, TGn Comparison Criteria. [18] 莊秉卓, “IEEE 802.11n基頻接收機設計與實現,” 國立交通大學碩士論文,中華民國九十四年七月。 [19] 陳炳志, “IEEE 802.11a 無線區域網路之載波回復電路,” 國立中興大學碩士論文,中華民國九十三年六月。 [20] 余其曄, “應用多重輸入輸出正交分頻多工技術之高速無線區域網路基頻收發機設計,” 國立台灣大學碩士論文,中華民國九十三年七月。 [21] 徐智力, “MIMO-OFDM無線區域網路基頻接收端通道估計及相位追蹤硬體架構設計與實現,” 國立中正大學碩士論文,中華民國九十五年七月。

Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is currently one of the important wireless communication. In the transmitting process of wireless communication, there will be signal frequency offset due to channel noise and other factors. Therefore, carrier frequence offset compensation is crucial.
The basic architecture of 802.11a is chosen to demonstrate MIMO. Our goal is to enhance 4 times data rate so as to enhance information data rate. After the completion of carrier frequency offset, compensation for SISO system, it will be extended to 44 MIMO systems. It can be accomplished without using 4 sets of complicated CFO systems. We adopt the low complexity synchronization circuit for the receiver. We use the signals of one antenna to analyze its compensation, which will be sent to another three antennas for compensation. Finally, simulation results prove that using low complexity CFO system can be compensation under modest frequency offset circumstances. Finally, a low complexity CFO system is successfully designed.
其他識別: U0005-1308200816220300
Appears in Collections:電機工程學系所

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