Referenced Items are not available for this document.
In this letter, the ergodic capacity maximization problem is first studied in the fading cognitive multiple-input multiple-output (MIMO) Z-interference channel (ZIC), where the interference from the primary transmitter (PT) to the secondary receiver (SR) is omitted. With the statistical channel state information (CSI) feedback, we find the optimal and the low complexity sub-optimal power strategies for fading cognitive MIMO ZIC to maximize its ergodic capacity under total power constraint, interference power constraint and rank constraint. Simulation results show that the proposed sub-optimal scheme is very efficient and almost achieves the optimal performance.
Published in:
Communications Letters, IEEE
(Volume:15
,
Issue:
11
)
Date of Publication: November 2011
- Page(s):
- 1166 - 1168
- ISSN :
- 1089-7798
- INSPEC Accession Number:
- 12376513
- Digital Object Identifier :
- 10.1109/LCOMM.2011.092011.110611
- Product Type:
- Journals & Magazines
- Date of Publication :
- 29 September 2011
- Date of Current Version :
- 21 November 2011
- Issue Date :
- November 2011
- Sponsored by :
- IEEE Communications Society
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