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Power Allocation for Beamforming Relay Networks under Channel Uncertainties
- Authors
- Joung, Jin Gon; Sayed, Ali H.
- Issue Date
- Nov-2009
- Publisher
- IEEE
- Citation
- GLOBECOM 2009 - 2009 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-8, pp 6013 - 6018
- Pages
- 6
- Journal Title
- GLOBECOM 2009 - 2009 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-8
- Start Page
- 6013
- End Page
- 6018
- ISSN
- 1930-529X
2576-764X
- Abstract
- Under uncertain channel conditions, local and global power control factors for amplify-and-forward relay processing and source-destination beamforming are jointly and iteratively designed based on a minimum mean-square-error (MMSE) criterion. The influence of imperfect channel information on system performance is examined by computer simulation. As a result, it is verified that the proposed power control methods can relieve the performance degradation arising from channel uncertainties.
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