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On the Capacity of Gaussian "Dirty" Z-Interference Channel with Common State
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- Ghasemi-Goojani, Shahab (author)
- KTH,Nätverk och systemteknik
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- Papadimitratos, Panagiotis (author)
- KTH,Nätverk och systemteknik
- (creator_code:org_t)
- IEEE, 2018
- 2018
- English.
- In: 2018 52ND ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS (CISS). - : IEEE.
- Conference paper (peer-reviewed)
Abstract
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- A class of Gaussian Z-interference channels with state is investigated in the regime of high state power with two transmitters communicating two independent messages through a "dirty" Z-interference channel with state. Transmitter 1 (primary user) interferes with receiver 2, while transmitter 2 (secondary user) does not interfere with receiver 1. In our model, we assume that both states are the same. Using lattice coding schemes, we obtain achievable rate-regions to characterize the boundary of the capacity region either fully or partially. Surprisingly, we observe that the achievable rate-region under a common state can include some points out of the rate-region when the channel is only corrupted by a state, i.e., when the additional interference is not harmful for the channel.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
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