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space-time channel feedback

Space-Time Coding and Space-Time Channel Modelling for Wireless Communications

Space-Time Coding and Space-Time Channel Modelling for Wireless Communications

... realistic channel environments the performance of space-time coded multiple- input multiple output (MIMO) systems is significantly reduced due to non-ideal antenna placement and non-isotropic ...MIMO ...

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Reduced Complexity Near Maximum Likelihood Detection for Decision Feedback Assisted Space Time Equalization

Reduced Complexity Near Maximum Likelihood Detection for Decision Feedback Assisted Space Time Equalization

... Abstract— A novel Decision-Feedback (DF) aided reduced complexity Maximum Likelihood (ML) Space-Time Equalizer (STE) designed for a single-carrier system is introduced. Two different methods of ...

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Reduced Complexity Single Carrier Maximum Likelihood Detection for Decision Feedback Assisted Space Time Equalization

Reduced Complexity Single Carrier Maximum Likelihood Detection for Decision Feedback Assisted Space Time Equalization

... the channel matrix results in numerous extra branches at the bottom of the search tree all of which have to be considered by the ...the channel matrix H , which is the characteristic of ...

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MBER Space Time Decision Feedback Equalization assisted Multiuser Detection for Multiple Antenna Aided SDMA Systems

MBER Space Time Decision Feedback Equalization assisted Multiuser Detection for Multiple Antenna Aided SDMA Systems

... The system used in our simulations supported users with the aid of receiver antennas. All the four users had an equal transmit power. The resultant 16 CIRs are listed in Table I, each having taps. In the simulations, all ...

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Delay tolerant distributed space time coding with feedback for cooperative MIMO relaying systems

Delay tolerant distributed space time coding with feedback for cooperative MIMO relaying systems

... a feedback channel in order to process the data symbols prior to transmission to the ...a feedback channel after the opti- mization and they are only used at the relays so the direct link from ...

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Linear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space Time Modulation

Linear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space Time Modulation

... erential space-time modulation (DSTM) has been re- cently proposed by Hochwald and Sweldens [1], Hughes [2], and Tarokh and Jafarkhani [3] for multiple antenna com- munication systems, where the ...

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Multiple Symbol Decision Feedback Space Time Differential Decoding in Fading Channels

Multiple Symbol Decision Feedback Space Time Differential Decoding in Fading Channels

... fading channel state information (CSI) is available at the receiver for coherent ...the channel changes slowly compared with the symbol rate, since the transmitter can send training symbols which enable the ...

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Signal processing and field measurements for underwater acoustic communications

Signal processing and field measurements for underwater acoustic communications

... in space to take advantage of spatial ...decision feedback equalizer (DFE) uses multiple nonlinear adaptive filters to remove intersymbol interference (ISI), and its complexity increases with time ...

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Distributed space time block coded transmission with imperfect channel estimation:achievable rate and power allocation

Distributed space time block coded transmission with imperfect channel estimation:achievable rate and power allocation

... imperfect channel knowl- edge in single-input single-output (SISO) and MIMO con- figurations, recent information-theoretical studies assume different channel state information (CSI) uncertainties at the ...

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Partial Feedback Based Orthogonal Space Time Block Coding With Flexible Feedback Bits

Partial Feedback Based Orthogonal Space Time Block Coding With Flexible Feedback Bits

... Focusing on this drawback, the open-loop solutions have been presented, such as the quasi-OSTBC (QOS- TBC) [4] with rate one for four transmit antennas, and other STBC schemes [5,6] with full rate and full diver- sity. ...

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Decision Feedback Aided Bayesian Turbo Space Time Equalizer for Parallel Interference Cancellation in SDMA Systems

Decision Feedback Aided Bayesian Turbo Space Time Equalizer for Parallel Interference Cancellation in SDMA Systems

... strong channel codec has to be used for the sake of avoiding error-propagation amongst different ...decision feedback structure as a solution to the problem of having a poor first iteration performance was ...

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Stabilization of nonlinear discrete time systems via a digital communication channel

Stabilization of nonlinear discrete time systems via a digital communication channel

... state space quantization method used in [2, 7, 8, 9], we establish sufficient conditions for the global stabilizability of semilinear discrete-time systems under an appropriate growth condition on the ...

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PERFORMANCE EVALUATION FOR FEEDBACK ROTATE- QUASI- ORTHOGONAL SPACE-TIME BLOCK CODES IN MULTIPLE TRANSMIT ANTENNAS

PERFORMANCE EVALUATION FOR FEEDBACK ROTATE- QUASI- ORTHOGONAL SPACE-TIME BLOCK CODES IN MULTIPLE TRANSMIT ANTENNAS

... the time length of the block equals the number of transmit antennas like that of Alamouti, for more than two transmit ...orthogonal space time block ...the channel in addition to the described ...

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A Limited Feedback Algorithm Sacred from Feedback Error for Slowly Time varying Channel

A Limited Feedback Algorithm Sacred from Feedback Error for Slowly Time varying Channel

... tangent space structure, Grassmannian manifold is suitable for predicting channel, especially for slowly varying ... channel matrix can be denoted by a lm  1 vector, we only consider the case of p ...

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Turbo Detection of Channel Coded Space Time Signals Using Sphere Packing Modulation

Turbo Detection of Channel Coded Space Time Signals Using Sphere Packing Modulation

... multilevel demodulator and the channel decoder. Motivated by the performance improvements reported in [5] and [11], we propose a novel system that ex- ploits the advantages of both iterative demapping and decoding ...

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A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems

A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems

... frequency-selective channel into a set of flat fading subchannels, whereas space-time/frequency en- coding/decoding facilitates equalization and achieves perfor- mance gains by exploiting the ...

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Research on the QoS Control Technology Based on Terminal

Research on the QoS Control Technology Based on Terminal

... Regardless of the control strategy is based on the screen or the rate, and the speed adjustment is based on the sending terminal or receiving terminal, the adjusted rate is finally decieded by the bandwidth, processing, ...

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SPACE TIME CODING TECHNIQUE FOR WIRELESS COMMUNICATION USING MIMO SYSTEM FOR CHANNEL ESTIMATION

SPACE TIME CODING TECHNIQUE FOR WIRELESS COMMUNICATION USING MIMO SYSTEM FOR CHANNEL ESTIMATION

... Simulation results for the performance of STBC on a Rayleigh fading channel will be presented here. In the simulation, QPSK modulation was used, and there is perfect channel state information at receiver. ...

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Space Time Coded MC CDMA: Blind Channel Estimation, Identifiability, and Receiver Design

Space Time Coded MC CDMA: Blind Channel Estimation, Identifiability, and Receiver Design

... Tx1 and Tx2, respectively. A trade-off is often made be- tween the bandwidth allocated to an MC-CDMA system and the processing gain P such that Q is an integer mul- tiple of P [11]. Here, we assume that P = Q to simplify ...

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State Feedback Stabilization with Guaranteed Transient Bounds

State Feedback Stabilization with Guaranteed Transient Bounds

... k e At k ≤ M e βt , t ≥ 0, (resp. k e At k < M e βt , t > 0). (2.1) A matrix pair (A, B) ∈ C n×n × C n×m is called (strictly) (M, β)-stabilizable if there exists a feedback matrix F ∈ C m×n such that the ...

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