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Resource Allocation on the MISO Interference Channel
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
2010 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The need for wireless communications has increased during the last decades. To increase the data rates of the communication links there is a need of allocating larger frequency bands. These bands are strictly regulated and the majority of the frequencies are allocated to licensed systems. The splitting of the bandwidth is orthogonal, which mean that the different systems are not interfering each other. But, orthogonal splitting is inefficient since it does not exploit all degrees of freedom in the wireless channels.

There are also unlicensed bands where different systems co-exist and operate simultaneously in a non-orthogonal manner and interfere each other. This interference degrades the performance of each system. This motivates the use of so-called spectrum sharing techniques for interference management.

The spectrum sharing can be modeled via the so-called interference channel (IFC). This consists of at least two transmitter (TX)-receiver (RX) pairs. These pairs can share resources such as frequency, time, power, code, or space. Here, the focus is on the sharing of spatial resources. By employing multiple antennas at the TXs, spatial diversity is obtained and it is possible to steer the power in any spatial direction. Assuming a single antenna at each RX we get the so-called multiple-input single-output (MISO) IFC.

There is a conflict inherent in the IFC since the TX-RX pairs optimize conflicting objectives, e.g., the data rates. To analyze this conflict we use game-theoretic concepts. In general, the situation where the TXs transmit in the directions which are optimal for their objective is inefficient. That is, it is possible increase all rates of some (or all) TX-RX pairs without decreasing the rate of any of the pairs. To do so, the TXs change their strategies such that interference is decreased.

We define several rate regions, which depend on the channel model and channelstate information at the transmitters. Also, some of the most important game-theoretic operating points are described.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press , 2010. , 27 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1438
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-55102Local ID: LIU-TEK-LIC-2010:9ISBN: 978-91-7393-377-3 (print)OAI: oai:DiVA.org:liu-55102DiVA: diva2:315696
Presentation
2010-05-28, Glashuset, B-huset, Campus Valla, Linköpings universitet, Linköping, 13:15 (English)
Opponent
Supervisors
Available from: 2010-05-03 Created: 2010-04-29 Last updated: 2016-08-31Bibliographically approved
List of papers
1. Parameterization of the MISO IFC Rate Region: The Case of Partial Channel State Information
Open this publication in new window or tab >>Parameterization of the MISO IFC Rate Region: The Case of Partial Channel State Information
2010 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, Vol. 9, no 2, 500-504 p.Article in journal (Refereed) Published
Abstract [en]

We study the achievable rate region of the multiple-input  single-output (MISO) interference channel (IFC), under the  assumption that all receivers treat the interference as additive  Gaussian noise. We assume the case of two users, and that the  channel state information (CSI) is only partially known at the  transmitters. Our main result is a characterization of  Pareto-optimal transmit strategies, for channel matrices that  satisfy a certain technical condition. Numerical examples are  provided to illustrate the theoretical results.

Keyword
Ergodic rate region, interference channel, multiple-input single-output channel, multistream transmission, Pareto optimality
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-52178 (URN)10.1109/TWC.2010.02.081371 (DOI)000274383100004 ()
Note
This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible ©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Johannes Lindblom, Erik G. Larsson and Eduard A. Jorswieck, Parameterization of the MISO IFC Rate Region: The Case of Partial Channel State Information, 2010, IEEE Transactions on Wireless Communications. http://dx.doi.org/10.1109/TWC.2010.02.081371 Available from: 2009-12-08 Created: 2009-12-08 Last updated: 2016-08-31
2. Selfishness and Altruism on the MISO Interference Channel: The Case of Partial Transmitter CSI
Open this publication in new window or tab >>Selfishness and Altruism on the MISO Interference Channel: The Case of Partial Transmitter CSI
2009 (English)In: IEEE Communications Letters, ISSN 1089-7798, Vol. 13, no 9, 667-669 p.Article in journal (Refereed) Published
Abstract [en]

We study the achievable ergodic rate region of the two-user multiple-input single-output interference channel, under the assumptions that the receivers treat interference as additive Gaussian noise and the transmitters only have statistical channel knowledge. Initially, we provide a closed-form expression for the ergodic rates and derive the Nash-equilibrium and zero-forcing transmit beamforming strategies. Then, we show that combinations of the aforementioned selfish and altruistic, respectively, strategies achieve Pareto-optimal rate pairs.

Keyword
Beamforming, ergodic rate region, game theory, interference channel, Pareto optimality
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-21518 (URN)10.1109/LCOMM.2009.090970 (DOI)
Note
©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Johannes Lindblom, Eleftherios Karipidis and Erik G. Larsson, Selfishness and Altruism on the MISO Interference Channel: The Case of Partial Transmitter CSI, 2009, IEEE Communications Letters, (13), 9, 667-669. http://dx.doi.org/10.1109/LCOMM.2009.090970 Available from: 2009-10-02 Created: 2009-10-02 Last updated: 2016-08-31
3. Outage Rate Regions for the MISO IFC
Open this publication in new window or tab >>Outage Rate Regions for the MISO IFC
2009 (English)In: Proceedings of the 43rd Asilomar Conference on Signals, Systems, and Computers (Asilomar), 2009, 1120-1124 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider the two-user multiple-input single output (MISO) interference channel (IFC) and assume that the receivers treat the interference as additive Gaussian noise. We study the rates that can be achieved in a slow-fading scenario, allowing an outage probability. We introduce three definitions for the outage region of the IFC. The definitions differ on whether the rates are declared in outage jointly or individually and whether there is perfect or statistical information about the channels. Even for the broadcast and the multiple-access channels, which are special cases of the IFC, there exist several definitions of the outage rate regions. We provide interpretations of the definitions and compare the corresponding regions via numerical simulations. Also, we discuss methods for finding the regions. This includes a characterization of the beamforming strategies, which are optimal in the sense that achieve rate pairs on the Pareto boundary of the outage rate region.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-25590 (URN)10.1109/ACSSC.2009.5470046 (DOI)978-1-4244-5825-7 (ISBN)
Note
©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE: Johannes Lindblom, Eleftherios Karipidis and Erik G. Larsson, Outage Rate Regions for the MISO IFC, 2009, Proceedings of the 43rd Asilomar Conference on Signals, Systems, and Computers (ACSSC'09). Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2016-08-31
4. Pareto-optimal Beamforming for the MISO Interference Channel with Partial CSI
Open this publication in new window or tab >>Pareto-optimal Beamforming for the MISO Interference Channel with Partial CSI
2009 (English)In: Proceedings of the 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP'09), 2009, 5-8 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider the problem of finding Pareto-optimal (PO) operating points for the multiple-input single-output (MISO) interference channel when the transmitters have statistical (covariance) channel knowledge. We devise a computationally efficient algorithm, based on semidefinite relaxation, to compute the PO rates and the enabling beamforming vectors. We illustrate the effectiveness of our algorithm by a numerical example.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-25580 (URN)10.1109/CAMSAP.2009.5413239 (DOI)978-1-4244-5180-7 (ISBN)
Conference
3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing
Note
©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Eleftherios Karipidis, Andreas Gruendinger, Johannes Lindblom and Erik G. Larsson, Pareto-optimal Beamforming for the MISO Interference Channel with Partial CSI, 2009, Proceedings of the 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP'09), 5-8. http://dx.doi.org/10.1109/CAMSAP.2009.5413239 Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2016-08-31
5. Cooperative Beamforming for the MISO Interference Channel
Open this publication in new window or tab >>Cooperative Beamforming for the MISO Interference Channel
2010 (English)In: Proceedings of the European Wireless Conference (EW), 2010, 631-638 p.Conference paper, Published paper (Refereed)
Abstract [en]

A distributed beamforming algorithm is proposed for the two-user multiple-input single-output (MISO) interference channel (IFC). The algorithm is iterative and uses as bargaining value the interference that each transmitter generates towards the receiver of the other user. It enables cooperation among the transmitters in order to increase both users’ rates by lowering the overall interference. In every iteration, as long as both rates keep on increasing, the transmitters mutually decrease the generated interference. They choose their beamforming vectors distributively, solving the constrained optimization problem of maximizing the useful signal power for a given level of generated interference. The algorithm is equally applicable when the transmitters have either instantaneous or statistical channel state information (CSI). The difference is that the core optimization problem is solved in closed-form for instantaneous CSI, whereas for statistical CSI an efficient solution is found numerically via semidefinite programming. The outcome of the proposed algorithm is approximately Pareto-optimal. Extensive numerical illustrations are provided, comparing the proposed solution to the Nash equilibrium, zero-forcing, Nash bargaining, and maximum sum-rate operating points.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-51796 (URN)10.1109/EW.2010.5483473 (DOI)978-1-4244-5999-5 (ISBN)
Conference
16th European Wireless Conference, April 12-15, Lucca, Italy
Note
©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE: Johannes Lindblom and Eleftherios Karipidis, Cooperative Beamforming for the MISO Interference Channel, 2010, Proceedings of the 16th European Wireless Conference (EW'10). Available from: 2010-01-04 Created: 2009-11-18 Last updated: 2010-10-10

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  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
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  • en-GB
  • en-US
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