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On the sum-capacity and lattice-based transmission strategies for state-dependent Gaussian interference channel
Ghasemi Goojani, S ; Sharif University of Technology | 2012
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- Type of Document: Article
- DOI: 10.1109/PIMRC.2012.6362671
- Publisher: 2012
- Abstract:
- In this work, we consider an additive state-dependent Gaussian interference channel (ASD-GIC) where there is a common additive interference, known to both transmitters but not to the receivers. First, we obtain an outer bound on the sum-capacity for the asymptotic case where the interference is assumed to be Gaussian variable with unbounded variance. This asymptotic case has been referred to as the "strong interference" in [1]. By applying a lattice-based coding scheme, an achievable rate-region is provided. Under some conditions, which depend on the noise variance and channel power constraints, this achievable sum-rate region meets the outer bound and therefore lattice codes can achieve the sum-capacity of an ASD-GIC in the asymptotic case
- Keywords:
- Additive state-dependent Gaussian interference channel ; Common additive interference ; Lattice-based transmission strategy ; Additive interference ; Dirty paper coding ; State-dependent ; Sum-capacity ; Transmission strategies ; Intercalation ; Signal interference ; Telecommunication
- Source: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC ; 2012 , Pages 1944-1948 ; 9781467325691 (ISBN)
- URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6362671