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—In a wireless network, with the aid of rate adaptation , multiuser diversity can be exploited by allowing the mobile user with the best channel to use the channel. However, the overhead that results from polling mobile stations to obtain channel state information (CSI) in large networks can outweigh the multiuser diversity gain. In this paper, we propose a(More)
—In this paper, we address the message-passing receiver design for the broadband massive MIMO systems using OFDM modulation. Leveraging the framework of factor graph, a computationally efficient message-passing receiver that performs joint channel estimation and decoding is devised. For the task of detection and decoding, three different approximation(More)
—The authors present a coded orthogonal frequency division multiplexing (COFDM) system with multiple-input/mul-tiple-output (multiple transmit and/or multiple receive) antennas for high-rate wireless data transmission. A symbol-based space diversity technique, which can take advantage of the inherent space diversity, is proposed. In contrast to conventional(More)