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In this paper, an alternative jointly optimized transceiver scheme is proposed to reduce the multi-user interference in the distributed antenna system (DAS). First a joint design for the pre-coders and combiners is proposed based on the signal-to-leakage-plus-noise ratio (SLNR) maximization and the receive signal-to-interference-plus-noise ratio (SINR) maximization, respectively. Then a modified weighted...
In this paper, coordinated beamforming scheme in distributed antenna systems (DASs) used for energy efficient transmission is developed. The major problem is non-convex of the optimization problem and is difficult to solve directly due to the fractional form. It is transformed into an equivalent subtractive-form optimization problem, by which we tackle this problem through a two-layer optimization...
In this paper, a group pre-coding scheme is proposed for multimedia broadcast multicast service (MBMS) downlink transmission in distributed multiple input multiple output (D-MIMO) antenna system. The ideal channel state information (CSI) is assumed to know at both transmitters and receivers. In order to evaluate the performance of the group pre-coding, the average symbol error rate (SER) of the Block...
In this paper, we present a generalized multi-carrier (GMC) transmission technique in multi-input and multi-output (MIMO) channel environments for beyond 3G mobile communications. Several key techniques including the design and implementation of the GMC synthesis/analysis system, adaptive double cyclic timeslot structure, pilot design and channel estimation, and iterative detection/decoding are briefly...
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