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Multiuser Turbo-BLAST system model based on zero-forcing principle is presented and the user scheduling algorithm and power allocation scheme are proposed in this paper. At the transmitter, the zero-forcing beam-forming technique is adopted for user multiplexing. When there are a lot of active users, the proposed user scheduling algorithm is proposed to pick the proper user subset and the adaptive...
In this paper, a statistically robust precoder design is presented for space-time coded multiple- input, multiple-output (MIMO) relay networks over double correlated Rician channels. We assume both the source and destination terminals are equipped with multiple-antenna, while a single antenna is used in distributed non-regenerative relay nodes for reducing feedback overhead and processing burden on...
The zero-forcing beam-forming algorithm is proposed and the modified iterative detector is presented for the downlink multiuser Turbo-BLAST system in this paper. At the transmitter, the beam-forming scheme based on zero-forcing rule is adopted to maximize the capacity of the desired user. At the receiver, the pretreatment matrix is used to mitigate the multiuser interference (MUI) and the iterative...
We propose a water-filling power allocation scheme for Turbo-BLAST system in the presence of channel state information imperfection. Subjected to the total transmit power constraint, the water-filling rule is used to allocate proper power for every sub-channel in order to improve channel capacity performance based on the imperfect channel state information. Simulation results show that the proposed...
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