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In massive multiple-input multiple-output (MIMO) high-speed train (HST) wireless communication systems (WCS), due to the large-dimension and rapidly time-varying property, channel tracking rather than conventional channel estimation is more feasible. Due to the non-linear channel variation, the channel is first decomposed into sub-channels with different angle of departure. By exploiting the property...
Spatial Modulation (SM) is utilized to overcome the negative influences of inter-channel interference (ICI) and enhance the spectral efficiency in multiple-input and multiple-output (MIMO) systems. Bit-interleaved Coded Spatial Modulation (BICSM) is proposed with the aim of improving the Bit Error Rate (BER) performance of SM systems. In our paper, a novel approach based on adaptive dual-interleaving...
The performance of the system with maximal ratio combining and multiuser scheduling is studied in the multiuser uplink in the presence of unequal power cochannel interferences from other cells. The channels of useful and interference signals are assumed to be Nakagami-m and Rayleigh fading. The closed form expressions for outage probability and average symbol error ratio (ASER) of system are derived...
In this paper, new dynamic resource allocation algorithms are presented for the downlink of multi-user MIMO-OFDMA/SDMA systems. Since it is difficult to obtain the optimal solution to the joint optimization problem, the whole procedure is divided into two steps, namely, the subcarrier-user scheduling and the resource allocation. In the first step, a new metric is proposed to measure the spatial compatibility...
This paper studies joint transmitter and receiver design for the space-time block coding and spatial multiplexing hybrid communication system with limited feedback. Existed QR group receiver uses QR decomposition of the channel matrix to separate the filtered versions of the multiplexed space-time coded symbol blocks followed by space-time decoder, and the performance of this scheme is usually limited...
This paper proposes a subspace-based blind channel estimation method for space-time coded OFDM system. Using only the redundancy induced by OFDM modulation and space-time block coding (STBC), channel state information (CSI) can be blindly estimated, up to two scalar ambiguities for Alamouti STBC or one for 4T4A3K STBC, even when a single receiving antenna is equipped. Compared with other blind channel...
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