Journal article
Distributed Transmit Beamforming: Challenges and Recent Progress
IEEE COMMUNICATIONS MAGAZINE, Vol.47(2), pp.102-110
2009
DOI: 10.1109/MCOM.2009.4785387
Abstract
Distributed transmit beamforming is a form of cooperative communication in which two or more information sources simultaneously transmit a common message and control the phase of their transmissions so that the signals constructively combine at an intended destination. Depending on the design objectives and constraints, the power gains of distributed beamforming can be translated into dramatic increases in range, rate, or energy efficiency. Distributed beamforming may also provide benefits in terms of security and interference reduction since less transmit power is scattered in unintended directions. Key challenges in realizing these benefits, however, include coordinating the sources for information sharing and timing synchronization and, most crucially, distributed carrier synchronization so that the transmissions combine constructively at the destination. This article reviews promising recent results in architectures, algorithms, and working prototypes which indicate that these challenges can be surmounted. Directions for future research needed to translate the potential of distributed beamforming into practice are also discussed.
Details
- Title: Subtitle
- Distributed Transmit Beamforming: Challenges and Recent Progress
- Creators
- Raghuraman Mudumbai - University of California, Santa BarbaraD Richard Brown III - Worcester Polytechnic InstituteUpamanyu Madhow - University of California, Santa BarbaraH Vincent Poor - Princeton University
- Resource Type
- Journal article
- Publication Details
- IEEE COMMUNICATIONS MAGAZINE, Vol.47(2), pp.102-110
- DOI
- 10.1109/MCOM.2009.4785387
- ISSN
- 1558-1896
- Language
- English
- Date published
- 2009
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984238806502771
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