The Gaussian MIMO Broadcast Channel under Receive Power Protection Constraints
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概要
- 論文の詳細を見る
A Gaussian MIMO broadcast channel (GMBC) models the MIMO transmission of Gaussian signals from a transmitter to one or more receivers. Its capacity region and different precoding schemes for it have been well investigated, especially for the case wherein there are only transmit power constraints. In this paper, a special case of GMBC is investigated, wherein receive power constraints are also included. By imposing receive power constraints, the model, called protected GMBC (PGMBC), can be applied to certain scenarios in spatial spectrum sharing, secretive communications, mesh networks and base station cooperation. The sum capacity, capacity region, and application examples for the PGMBC are discussed in this paper. Sub-optimum precoding algorithms are also proposed for the PGMBC, where standard user precoding techniques are performed over a BC with a modified channel, which we refer to as the “protection-implied BC.” In the protection-implied BC, the receiver protection constraints have been implied in the channel, which means that by satisfying the transmit power constraints on the protection implied channel, receiver protection constraints are guaranteed to be met. Any standard single-user or multi-user MIMO precoding scheme may then be performed on the protection-implied channel. When SINR-matching duality-based precoding is applied on the protection-implied channel, sum-capacity under full protection constraints (zero receive power), and near-sum-capacity under partial protection constraints (limited non-zero receive power) are achieved, and were verified by simulations.
- （社）電子情報通信学会の論文
- 2010-12-01
著者
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ARAKI Kiyomichi
Tokyo Institute of Technology
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ARAKI Kiyomichi
Graduate School of Science and Engineering, Tokyo Institute of Technology
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Araki Kiyomichi
Graduate School Of Engineering Tokyo Institute Of Technology
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Garcia Ian
Tokyo Institute Of Technology
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SAKAGUCHI Kei
Tokyo Institute of Technology
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SAKAGUCHI Kei
Graduate School of Science and Engineering, Tokyo Institute of Technology
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Sakaguchi K
Graduate School Of Engineering Tokyo Institute Of Technology
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Sakaguchi Kei
Tokyo Inst. Of Technol. Tokyo Jpn
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Sakaguchi Kei
Department Of Electrical And Electronic Engineering Graduate School Of Science And Engineering Tokyo
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Araki Kiyomichi
Department Of Electrical And Electronic Engineering Graduate School Of Science And Engineering Tokyo
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Sakaguchi Kei
Graduate School Of Engineering Tokyo Institute Of Technology
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Garcia Ian
Graduate School Of Science And Engineering Tokyo Institute Of Technology
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ARAKI Kiyomichi
the Tokyo Institute of Technology
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