Results 211 to 220 of about 39,331 (259)
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Turbo processing for an OFDM-based MIMO system
IEEE Transactions on Wireless Communications, 2005We consider improving the overall system performance of an orthogonal frequency-division multiplexing-based multiple-input multiple-output (MIMO) wireless local area network system. We use a combined iterative detection/decoding and channel updating method, referred to herein as turbo processing, to improve performance.
Jianhua Liu 0003, Jian Li 0001
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Turbo-Expander Applications in Natural Gas Processing
Journal of Petroleum Technology, 1976Turbo-expander processing is the better method for efficiency of liquids recovery in this comparison of choke and expander processing of a typical natural gas stream. The advantages of low-temperature, low-pressure separation of gas liquids are presented, along with a definition of situations in which only a combination of low temperature and low ...
R.N. Maddox, K.E. Bretz
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Turbo-coded blind per-survivor processing multiuser detection CDMA [PDF]
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525), 2002 Joint data and blind channel estimation based on the principle of per-survivor processing (PSP) is invoked and characterised in the proposed turbo-coded multiuser detection assisted code division multiple access (CDMA) system. The turbo-coded blind PSP receiver invoked the likelihood function in its metric calculations over the typical urban (TU) time ...
Kuan, E.L., Hanzo, L.
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Turbo expert: A knowledge representation and processing language
Cybernetics and Systems Analysis, 1992Turbo Expert, a knowledge representation and processing language, is the basic support language for expert system construction. Turbo Expert has been implemented for IBM PC and for El'brus multiprocessor systems.
S. V. Vdovkin +2 more
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Multichannel processing of DVB/RCS turbo codes
CCECE 2003 - Canadian Conference on Electrical and Computer Engineering. Toward a Caring and Humane Technology (Cat. No.03CH37436), 2004Turbo decoder is one of the iterative decoders that its performance is very sensitive to the number of iterations it performs. In a multichannel turbo decoding system, each input frame requires different number of iterations to be decoded correctly. An example of these kinds of systems is the base station of mobile communication system, in which turbo ...
P. Sadeghi, M.R. Soleymani
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Exploring parallel processing levels in turbo demodulation
2010 6th International Symposium on Turbo Codes & Iterative Information Processing, 2010Iterative processing in a wireless base-band receiver ensures promising error rate performance at the cost of high processing time for data retrieval. Exploration of parallelism in iterative processes, while maintaining the error rate performance, contributes toward fulfilling the high transmission rate requirements of emerging wireless communication ...
Amer Baghdadi, Michel Jézéquel
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New schedules for information processing in turbo decoding
Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252), 2002The framework of Bayesian networks has been used to introduce new ways for decoding parallel concatenated convolutional (turbo) codes. Simulation results show that a noisy received block which does not converge using traditional turbo decoding can converge to the correct value with one or more of the methods introduced here.
P. Meshkat, J.D. Villasenor
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Sliding-Window Processing of Turbo Equalization for Partial Response Channels
2019 26th International Conference on Telecommunications (ICT), 2019Spatially coupled low-density parity-check (SC-LDPC) codes are the attractive candidates for the application requiring a practical constraint on the latency and complexity. In previous works, the turbo equalization consisting the SC-LDPC window decoder and Bahl-Cocke-Jelinek-Raviv (BCJR) detector is used to tackle the inter-symbol interferences (ISIs ...
Sirawit Khittiwitchayakul +2 more
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Block processing technique for low power turbo decoder design
Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367), 2003We apply a block processing technique to the MAP algorithm used in turbo decoding. This new technique leads to a power-efficient way to access memory and to a reduced memory size. We introduce the "very long data word" (VLDW) memory architecture, which leads to a reduction in power consumption for memory access operations.
Inkyu Lee +2 more
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Turbo space-time processing to improve wireless channel capacity
IEEE Transactions on Communications, 2000By deriving a generalized Shannon capacity formula for multiple-input, multiple-output Rayleigh fading channels, and by suggesting a layered space-time architecture concept that attains a tight lower bound on the capacity achievable. Foschini (see Wireless Pers.
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