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Transmit Delay Structure Design for Blind Channel Estimation over Multipath Channels
EURASIP Journal on Wireless Communications and Networking volume 2007, Article number: 026123 (2007)
Wireless communications often exploit guard intervals between data blocks to reduce interblock interference in frequency-selective fading channels. Here we propose a dual-branch transmission scheme that utilizes guard intervals for blind channel estimation and equalization. Unlike existing transmit diversity schemes, in which different antennas transmit delayed, zero-padded, or time-reversed versions of the same signal, in the proposed transmission scheme, each antenna transmits an independent data stream. It is shown that for systems with two transmit antennas and one receive antenna, as in the case of one transmit antenna and two receive antennas, blind channel estimation and equalization can be carried out based only on the second-order statistics of symbol-rate sampled channel output. The proposed approach involves no preequalization and has no limitations on channel-zero locations. Moreover, extension of the proposed scheme to systems with multiple receive antennas and/or more than two transmit antennas is discussed. It is also shown that in combination with the threaded layered space-time (TST) architecture and turbo coding, significant improvement can be achieved in the overall system performance.
Giannakis GB, Halford SD: Asymptotically optimal blind fractionally spaced channel estimation and performance analysis. IEEE Transactions on Signal Processing 1997,45(7):1815-1830. 10.1109/78.599951
Zeng HH, Tong L: Blind channel estimation using the second-order statistics: algorithms. IEEE Transactions on Signal Processing 1997,45(8):1919-1930. 10.1109/78.611184
Zeng HH, Tong L: Blind channel estimation using the second-order statistics: asymptotic performance and limitations. IEEE Transactions on Signal Processing 1997,45(8):2060-2071. 10.1109/78.611205
Mazet LL, Ciblat P, Loubaton P: Fractionally spaced blind equalization: CMA versus second order based methods. Proceedings of the 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC '99), May 1999, Annapolis, Md, USA 231-234.
Moulines E, Duhamel P, Cardoso J-F, Mayrargue S: Subspace methods for the blind identification of multichannel FIR filters. IEEE Transactions on Signal Processing 1995,43(2):516-525. 10.1109/78.348133
Tong L, Xu G, Kailath T: Blind identification and equalization based on second-order statistics: a time domain approach. IEEE Transactions on Information Theory 1994,40(2):340-349. 10.1109/18.312157
Foschini GJ, Gans MJ: On limits of wireless communications in a fading environment when using multiple antennas. Wireless Personal Communications 1998,6(3):311-335. 10.1023/A:1008889222784
Telatar E: Capacity of multi-antenna Gaussian channels. European Transactions on Telecommunications 1999,10(6):585-595. 10.1002/ett.4460100604
Alamouti SM: A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications 1998,16(8):1451-1458. 10.1109/49.730453
Foschini GJ: Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas. Bell Labs Technical Journal 1996,1(2):41-59.
Tarokh V, Seshadri N, Calderbank AR: Space-time codes for high data rate wireless communication: performance criterion and code construction. IEEE Transactions on Information Theory 1998,44(2):744-765. 10.1109/18.661517
Tarokh V, Jafarkhani H, Calderbank AR: Space-time block codes from orthogonal designs. IEEE Transactions on Information Theory 1999,45(5):1456-1467. 10.1109/18.771146
Seshadri N, Winters JH: Two signaling schemes for improving the error performance of frequency-division-duplex (FDD) transmission systems using transmitter antenna diversity. Proceedings of the 43rd IEEE Vehicular Technology Conference (VTC '93), May 1993, Secaucus, NJ, USA 508-511.
Wittneben A: A new bandwidth efficient transmit antenna modulation diversity scheme for linear digital modulation. Proceedings of IEEE International Conference on Communications (ICC '93), May 1993, Geneva, Switzerland 3: 1630-1634.
Winters JH: The diversity gain of transmit diversity in wireless systems with Rayleigh fading. IEEE Transactions on Vehicular Technology 1998,47(1):119-123. 10.1109/25.661038
Vucetic B, Yuan J: Space-Time Coding. John Wiley & Sons, New York, NY, USA; 2003.
El Gamal H, Hammons AR Jr.: A new approach to layered space-time coding and signal processing. IEEE Transactions on Information Theory 2001,47(6):2321-2334. 10.1109/18.945250
Wolniansky PW, Foschini GJ, Golden GD, Valenzuela RA: V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel. Proceedings of URSI International Symposium on Signals, Systems, and Electronics (ISSSE '98), September-October 1998, Pisa, Italy 295-300.
Gore D, Sandhu S, Paulraj AJ: Blind channel identification and projection receiver determination for multicode and multirate situations in DS-CDMA systems. Proceedings of IEEE International Conference on Communications (ICC '02), April-May 2002, New York, NY, USA 3: 1949-1953.
Lindskog E, Paulraj A: A transmit diversity scheme for channels with intersymbol interference. Proceedings of IEEE International Conference on Communications (ICC '00), June 2000, New Orleans, La, USA 1: 307-311.
Choi W-J, Cioffi JM: Space-time block codes over frequency selective Rayleigh fading channels. Proceedings of the 50th IEEE Vehicular Technology Conference (VTC '99), September 1999, Amsterdam, The Netherlands 5: 2541-2545.
Zhou S, Giannakis GB: Single-carrier space-time block-coded transmissions over frequency-selective fading channels. IEEE Transactions on Information Theory 2003,49(1):164-179. 10.1109/TIT.2002.806158
Ding Y, Davidson TN, Wong KM: Orthogonal block code design for frequency-selective multiple antenna channels. Proceedings of IEEE Sensor Array and Multichannel Signal Processing Workshop, July 2004, Barcelona, Spain 279-283.
Swindlehurst AL, Leus G: Blind and semi-blind equalization for generalized space-time block codes. IEEE Transactions on Signal Processing 2002,50(10):2489-2498. 10.1109/TSP.2002.803319
Ammar N, Ding Z: On blind channel identifiability under space-time coded transmission. Proceedings of the 36th Asilomar Conference on Signals, Systems and Computers, November 2002, Pacific Groove, Calif, USA 1: 664-668.
Ammar N, Ding Z: Frequency selective channel estimation in time-reversed space-time coding. Proceedings of IEEE Wireless Communications and Networking Conference (WCNC '04), March 2004, Atlanta, Ga, USA 3: 1838-1843.
Choi J: Equalization and semi-blind channel estimation for space-time block coded signals over a frequency-selective fading channel. IEEE Transactions on Signal Processing 2004,52(3):774-785. 10.1109/TSP.2003.822361
Zhou S, Muquet B, Giannakis GB: Subspace-based (semi-) blind channel estimation for block precoded space-time OFDM. IEEE Transactions on Signal Processing 2002,50(5):1215-1228. 10.1109/78.995088
Papadias CB: Unsupervised receiver processing techniques for linear space-time equalization of wideband multiple input/multiple output channels. IEEE Transactions on Signal Processing 2004,52(2):472-482. 10.1109/TSP.2003.821108
Li H, Lu X, Giannakis GB: Capon multiuser receiver for CDMA systems with space-time coding. IEEE Transactions on Signal Processing 2002,50(5):1193-1204. 10.1109/78.995086
Shahbazpanahi S, Gershman AB, Giannakis GB: Semiblind multiuser MIMO channel estimation using capon and MUSIC techniques. IEEE Transactions on Signal Processing 2006,54(9):3581-3591.
Ma W-K, Vo B-N, Davidson TN, Ching P-C: Blind ML detection of orthogonal space-time block codes: efficient high-performance implementations. IEEE Transactions on Signal Processing 2006,54(2):738-751.
Shahbazpanahi S, Gershman AB, Manton JH: Closed-form blind MIMO channel estimation for orthogonal space-time block codes. IEEE Transactions on Signal Processing 2005,53(12):4506-4517.
Shahbazpanahi S, Gershman AB, Manton JH: A linear precoding approach to resolve ambiguity of blind decoding of orthogonal space-time block codes in slowly fading channels. Proceedings of the 5th IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC '04), July 2004, Lisbon, Portugal 228-232.
Nee RV, Prasad R: OFDM for Wireless Multimedia Communications. Artech House Publishers, Norwood, Mass, USA; 2000.
Zhou S, Giannakis GB, Martret CL: Chip-interleaved block-spread code division multiple access. IEEE Transactions on Communications 2002,50(2):235-248. 10.1109/26.983320
Serpedin E, Giannakis GB: Blind channel identification and equalization with modulation-induced cyclostationarity. IEEE Transactions on Signal Processing 1998,46(7):1930-1944. 10.1109/78.700965
Scaglione A, Giannakis GB, Barbarossa S: Redundant filterbank precoders and equalizers—part I: unification and optimal designs. IEEE Transactions on Signal Processing 1999,47(7):1988-2006. 10.1109/78.771047
Scaglione A, Giannakis GB, Barbarossa S: Redundant filterbank precoders and equalizers—part II: blind channel estimation, synchronization, and direct equalization. IEEE Transactions on Signal Processing 1999,47(7):2007-2022. 10.1109/78.771048
Woodard JP, Hanzo L: Comparative study of turbo decoding techniques: an overview. IEEE Transactions on Vehicular Technology 2000,49(6):2208-2233. 10.1109/25.901892
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Li, T., Ling, Q. & Ding, Z. Transmit Delay Structure Design for Blind Channel Estimation over Multipath Channels. J Wireless Com Network 2007, 026123 (2007). https://doi.org/10.1155/2007/26123
- Wireless Communication
- Data Stream
- Fading Channel
- Independent Data
- Data Block