An Efficient Algorithm for Zero-Forcing Coordinated Beamforming
نویسندگان
چکیده
منابع مشابه
Zero-forcing DPC beamforming design for multiuser MIMO broadcast channels
The sum rate maximization in multiuser MIMO broadcast channels is investigated in this paper. We first propose an approach under a total power constraint. Compared with the most related methods in the literature, the proposed method can be easily adapted to a more realistic per-antenna power constraint. Since the power of each antenna is limited individually by the linearity of its power amplif...
متن کاملDistributed Multi-Cell Zero-Forcing Beamforming in Cellular Downlink Channels
For a multiple-input single-output (MISO) downlink channel with M transmit antennas, it has been recently proved that zero-forcing beamforming (ZFBF) to a subset of (at most) M “semiorthogonal” users is optimal in terms of sum-rate, asymptotically with the number of users. However, determining the subset of users for transmission is a complex optimization problem. Adopting the ZFBF scheme in a ...
متن کاملFull-Duplex Relay Based on Zero-Forcing Beamforming
In this paper, we propose a full-duplex relay (FDR) based on a zero-forcing beamforming (ZFBF) for a multiuser MIMO relay system. The ZFBF is employed at the base station to suppress both the self-interference of the relay and the multiuser interference at the same time. Numerical results show that the proposed FDR can enhance the sum rate performance as compared to the half-duplex relay (HDR),...
متن کاملAn Efficient Algorithm for Computing Zero-Order Hankel Transforms
Postnicov [22], in 2003, proposed an algorithm to compute the Hankel transforms of order zero and one by using Haar wavelets. But the proposed method faced problems in the evaluation of zero order Hankel transform. The purpose of this paper is to overcome this problem and obtain an efficient algorithm for evaluating Hankel transform of order zero by using rationalized Haar wavelets. Exact analy...
متن کاملThe Study of Zero-Forcing Beamforming Gain for Multiuser MIMO with Limited Feedback
This paper discusses the finite-rate feedback-based ZF for multiuser MIMO in case of small number of candidate users to be selected and small number of quantization bits to be fed back. In this case, the multiplexing gain from ZF is limited. Under the assumption of small number of candidate users, then the paper further analyzes throughput of ZF with different number of co-scheduled users. From...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Communications Letters
سال: 2012
ISSN: 1089-7798
DOI: 10.1109/lcomm.2012.050412.112565