Sum power iterative water-filling for multi-antenna Gaussian broadcast channels

N. Jindal; S. Jafar; S. Vishwanath; A. Goldsmith

Sum power iterative water-filling for multi-antenna Gaussian broadcast channels

N. Jindal, S. Jafar, S. Vishwanath, A. Goldsmith

Research output: Contribution to journal › Conference article › peer-review

Abstract

We consider the problem of maximizing sum rate on a multiple-antenna downlink in which the base station and receivers have multiple-antennas. The optimum scheme for this system was recently found to be "dirty paper coding". Obtaining the optimal transmission policies of the users when employing this dirty paper coding scheme is a computationally complex non-convex problem. We use a "duality" to transform this problem into a convex multiple access problem, and then obtain a simple and fast iterative algorithm that gives us the optimum transmission policies.

Original language	English (US)
Pages (from-to)	1518-1522
Number of pages	5
Journal	Conference Record of the Asilomar Conference on Signals, Systems and Computers
Volume	2
State	Published - 2002
Externally published	Yes
Event	The Thirty-Sixth Asilomar Conference on Signals Systems and Computers - Pacific Groove, CA, United States Duration: Nov 3 2002 → Nov 6 2002

All Science Journal Classification (ASJC) codes

Signal Processing
Computer Networks and Communications

Cite this

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title = "Sum power iterative water-filling for multi-antenna Gaussian broadcast channels",

abstract = "We consider the problem of maximizing sum rate on a multiple-antenna downlink in which the base station and receivers have multiple-antennas. The optimum scheme for this system was recently found to be {"}dirty paper coding{"}. Obtaining the optimal transmission policies of the users when employing this dirty paper coding scheme is a computationally complex non-convex problem. We use a {"}duality{"} to transform this problem into a convex multiple access problem, and then obtain a simple and fast iterative algorithm that gives us the optimum transmission policies.",

author = "N. Jindal and S. Jafar and S. Vishwanath and A. Goldsmith",

year = "2002",

language = "English (US)",

volume = "2",

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journal = "Conference Record of the Asilomar Conference on Signals, Systems and Computers",

issn = "1058-6393",

publisher = "IEEE Computer Society",

note = "The Thirty-Sixth Asilomar Conference on Signals Systems and Computers ; Conference date: 03-11-2002 Through 06-11-2002",

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TY - JOUR

T1 - Sum power iterative water-filling for multi-antenna Gaussian broadcast channels

AU - Jindal, N.

AU - Jafar, S.

AU - Vishwanath, S.

AU - Goldsmith, A.

PY - 2002

Y1 - 2002

N2 - We consider the problem of maximizing sum rate on a multiple-antenna downlink in which the base station and receivers have multiple-antennas. The optimum scheme for this system was recently found to be "dirty paper coding". Obtaining the optimal transmission policies of the users when employing this dirty paper coding scheme is a computationally complex non-convex problem. We use a "duality" to transform this problem into a convex multiple access problem, and then obtain a simple and fast iterative algorithm that gives us the optimum transmission policies.

AB - We consider the problem of maximizing sum rate on a multiple-antenna downlink in which the base station and receivers have multiple-antennas. The optimum scheme for this system was recently found to be "dirty paper coding". Obtaining the optimal transmission policies of the users when employing this dirty paper coding scheme is a computationally complex non-convex problem. We use a "duality" to transform this problem into a convex multiple access problem, and then obtain a simple and fast iterative algorithm that gives us the optimum transmission policies.

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M3 - Conference article

AN - SCOPUS:0038305105

SN - 1058-6393

VL - 2

SP - 1518

EP - 1522

JO - Conference Record of the Asilomar Conference on Signals, Systems and Computers

JF - Conference Record of the Asilomar Conference on Signals, Systems and Computers

T2 - The Thirty-Sixth Asilomar Conference on Signals Systems and Computers

Y2 - 3 November 2002 through 6 November 2002

ER -

Sum power iterative water-filling for multi-antenna Gaussian broadcast channels

Abstract

All Science Journal Classification (ASJC) codes

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