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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lan Zhang Ying-Chang Liang Yan Xin Rui Zhang Poor, H.V. |
| Copyright Year | 2009 |
| Description | Author affiliation: Institute for Infocomm Research, A*STAR, 1 Fusionopolis Way, #21-01 Connexis, Singapore 138632 (Ying-Chang Liang; Yan Xin) || NEC Laboratories America Inc., 4 Independence Way, Princeton, NJ 08540, USA (Rui Zhang) || Department of Electrical Engineering, Princeton University, NJ 08544, USA (Poor, H.V.) || Dept. of ECE, National University of Singapore, Singapore 118622 (Lan Zhang) |
| Abstract | The conventional Gaussian multiple-input multiple-output (MIMO) broadcast channel (BC)- multiple-access channel (MAC) duality has previously been applied to solve non-convex BC capacity computation problems. However, this conventional duality approach is applicable only to the case in which the base station (BS) of the BC is subject to a single sum-power constraint. An alternative approach is the minimax duality, established by Yu in the framework of Lagrange duality, which can be applied to solve the per-antenna power constraint case. This paper first extends the conventional BC-MAC duality to the general linear transmit covariance constraint (LTCC) case, and thereby establishes a general BC-MAC duality. This new duality is then applied to solve the BC capacity computation problem with multiple LTCCs. Moreover, the relationship between this new general BC-MAC duality and the minimax duality is also presented, and it is shown that the general BC-MAC duality has a simpler form. Numerical results are provided to illustrate the effectiveness of the proposed algorithm. |
| Starting Page | 2502 |
| Ending Page | 2506 |
| File Size | 807509 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424443123 |
| DOI | 10.1109/ISIT.2009.5206059 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-28 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | MIMO Minimax techniques Covariance matrix Signal to noise ratio Broadcasting Base stations Lagrangian functions Iterative algorithms Laboratories Electrical capacitance tomography |
| Content Type | Text |
| Resource Type | Article |
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