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Accession Number
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ADA562484
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Title
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Capacity Optimization of MIMO Links with Interference.
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Publication Date
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Jun 2011
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Media Count
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7p
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Personal Author
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J. Matyjas M. Medley P. Wang
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Abstract
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In this paper, we derive the capacity for MIMO links suffered from cochannel interference where each MIMO link is decomposed via SVD. Then, each eigenchannel of MIMO link is represented by a set of logical links with a set of discrete data rates and discrete powers. An Integer Programming based algorithm (named as IP) is presented to solve the capacity optimization problem. The solution specifies the set of logical links that can transmit simultaneously. Numerical results show that GP and QN methods achieve better performance than IP method for the case of weak interference because of the convexity of the optimization problem when INR is sufficiently small. In the case of strong interference, IP method achieves better performance than GP and QN methods, which means that transmitting one link at a time is better than transmitting all links simultaneously with full power. In other words, scheduling links to transmit is more efficient for the case of strong interference.
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Keywords
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Algorithms
Capacity optimization
Capacity(Quantity)
Cochannel interference
Data rate
Input output processing
Integer programming
Interference
Multiple-input multiple-output systems
Numerical integration
Optimization
Scheduling
Transmitting
Words(Language)
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Source Agency
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Non Paid ADAS
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NTIS Subject Category
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62B - Computer Software
41N - Computer Software
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Corporate Author
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Air Force Research Lab., Rome, NY. Information Directorate.
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Document Type
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Technical report
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Title Note
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Conference paper.
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NTIS Issue Number
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1225
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Contract Number
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N/A
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