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Pilot-symbol-aided iterative channel estimation for OFDM-based systems
(IEEE, 2005)
In this paper, we propose a pilot-symbol-aided iterative channel estimation for coded OFDM-based systems. We use the symbol APP provided by the channel decoder to form groups of virtual pilots. According to their reliabilities, ...
Breadth first algorithms for APP detectors over MIMO channels
(IEEE, 2004)
For iterative decoding of multiple antenna systems concatenated with an outer error correcting code, it is important to use an a posteriori probability detector for the MIMO detection to achieve near capacity performance. ...
Performance and complexity analysis of suboptimal MIMO detectors
(IEEE, 2005)
In this paper, we consider coded MIMO systems using suboptimal iterative receivers. We propose to use the list type breadth first detectors based on M and TM algorithms and the soft output linear MMSE detectors with a ...
Adaptive resource allocation for multicast OFDM systems with multiple transmit antennas
(IEEE, 2006)
We evaluate the impact of multiple transmit antennas on the performance of multicast OFDM systems by proposing a suboptimal low complexity algorithm. Associated with a powerful erasure code, it is possible to increase the ...
Iterative EM-based channel estimation for STBC-OFDM
(IEEE, 2009)
In this paper, an iterative EM based channel estimation algorithm is studied for STBC-OFDM systems. Compared to the time domain EM based channel estimation algorithm which needs matrix inversion, a frequency domain EM based ...
Performance of semi-orthogonal user selection for multiuser MISO systems
(IEEE, 2008)
In MISO multiuser downlink wireless communication systems with precoding at the transmission, the capacity depends on the channel state information at the transmitter. Since the feedback data rate increases with the number ...
Reduced feedback designs for SDMA-OFDMA systems
(IEEE, 2009)
In SDMA-OFDMA wireless communication systems, the feedback load increases with the number of users, subcarriers and antennas in the cell. In this paper, we propose two efficient reduced feedback algorithms by selecting the ...
Adaptive resource allocation for SDMA-OFDMA systems with genetic algorithm
(IEEE, 2009)
In this paper, we propose an adaptive resource allocation algorithm to maximize the sum data rate for spatial division multiplexing access (SDMA) orthogonal division multiple access (OFDMA) systems using genetic algorithm. ...
Semi-orthogonal user selection for MISO systems with quantized feedback
(IEEE, 2008)
For MISO multi-user downlink wireless communication system with precoding at the transmission, the channel state information at the transmitter can provide tremendous capacity gains. However, the amount of feedback data ...
Partial and analog feedback for MISO precoding systems
(IEEE, 2007)
We consider a multiple input single output antenna system with a feedback link. While most of the previous works have considered perfect feedback channels, in this paper, we evaluate the impact of a noisy feedback channel ...
