MIMO-OFDM systems
Channel Estimation and Optimization for Pilot Design in MIMO OFDM Systems
... Abstract-- In this paper, pilot carriers are designed using particle swarm optimization method. It is compared with random and orthogonal placement of pilot that are used for LS channel estimation in MIMO ...
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Training Based Channel Estimation in MIMO OFDM Systems
... In this paper, we have considered the training based channel estimation for MIMO-OFDM systems. It is seen that there is ample scope for performance improvement even in the presence of the channel ...
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ICI reduction through shaped OFDM in coded MIMO-OFDM systems
... coded MIMO- OFDM communications ...in OFDM systems, to the best of our knowledge, we are unable to find any published work on pulse shaping for MIMO-OFDM systems in the ...
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Sparse channel estimation by pilot allocation in MIMO OFDM systems
... Using Multiple Antenna (MA), one can achieve high-data-rate over wireless multipath channel. The Multiple Input Multiple Output (MIMO) technology enhances the data rate without any additional transmission power or ...
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The diversity of STF coded MIMO OFDM systems with a general correlation model
... [14, 15]. The maximum diversity of SF-coded MIMO- OFDM systems with arbitrary spatial correlation was studied in [16]. Unfortunately, it considers no frequency correlation. However, in most practical ...
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Combined Beamforming with Space Time Frequency Coding for Mimo OFDM Systems
... multiple OFDM block for multiple transmit ...over MIMO–OFDM ...several OFDM block transmission to perfectly isolate them at the ...for MIMO–OFDM ...
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On the optimality of training signals for MMSE channel estimation in MIMO OFDM systems
... in MIMO-OFDM ...all MIMO dimensions, channel statistics, multi- carriers, and multisymbols lead to an extremely complex modeling and mathematically intractable ...
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PAPR reduction scheme with efficient embedded signaling in MIMO OFDM systems
... interesting solutions are proposed in the literature such as cross-antenna rotation and inversion [9], direct SLM [10], direct PTS (dPTS) [11], unitary rotation [12], opti- mal PAPR reduction [13], and polyphase ...
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Particle swarm optimization for pilot tones design in MIMO-OFDM systems
... receiver MIMO-OFDM systems require channel state information (CSI) for coherent demodulation and data ...wireless systems because of the time varying nature of channels ...of OFDM ...
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Optimal Superimposed Training Sequences for Channel Estimation in MIMO-OFDM Systems
... ST-based MIMO-OFDM systems is ...the MIMO-OFDM system are analyzed, and a new selection criterion for the training sequences that jointly optimizes the MSEE and the BER is ...ST-based ...
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Synchronization in Wireless Networks for Practical MIMO OFDM Systems
... for MIMO-OFDM systems in multipath envi- ronment is ...in MIMO-OFDM systems can be solved with proposed algorithm which gives good performance and tends to be limited only by ...
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Feedback Reduction in Uplink MIMO OFDM Systems by Chunk Optimization
... In MIMO OFDM systems, this control overhead and sig- nal processing complexity are quite large, leading to the def- inition of the so-called time-frequency tiles or chunks ...consecutive OFDM ...
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TWO APPROACHES ON CARRIER FREQUENCY OFFSET ESTIMATION IN MIMO OFDM SYSTEMS
... In this paper, we proposed a novel iterative carrier frequency offset estimation algorithm based on the EKF algorithm and multi-antenna channel ML estimation for MIMO-OFDM systems. In the proposed ...
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Multiuser MIMO OFDM Systems using Subcarrier Hopping
... SSCH/SDMA- OFDM system is capable of achieving a high frequency diversity, and hence exhibits a high robustness to ...(SISO) OFDM systems, which are subject to various design constraints, such as ...
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Linear adaptive channel equalization for multiuser MIMO-OFDM systems
... Multi-User MIMO-OFDM (MU-MIMO-OFDM) systems have been proposed as a solution for the provision of broad- band services to sparsely populated rural communities achiev- ing typical data ...
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Resource allocation in MIMO-OFDM Systems
... filling algorithm. The simulation model accepts inputs as text or audio files, binary, sinusoidal, or random data. The channel simulation allows examination of common wireless multipath channel characteristics such ...
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Semiblind channel estimation for MIMO–OFDM systems
... for MIMO–OFDM systems based on a specific and non-redundant precoding scheme, say, circular pre- coding, since the circular precoding allows channel esti- mation at the receiver and simplifies the ...
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Iterative MMSE PIC Detection Algorithm for MIMO OFDM Systems
... communication systems are required to provide high data rates, which is essential for many services such as video, high quality audio and mobile integrated ...of MIMO-OFDM systems offers high ...
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Bit Error Rate Prediction of Coded MIMO-OFDM Systems
... In this paper, we have proposed an analytical SINR evaluation of MIMO-OFDM systems using iterative receiver. Once the SINR is computed, we have proposed an adaptation of the EESM technique to predict ...
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Synchronization and channel estimation in MIMO OFDM systems
... of MIMO- OFDM systems which are ...for OFDM systems based on pilot arrangement are ...in MIMO-OFDM ...in OFDM- based systems have been published so ...
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