Achievable Rates for K-user Gaussian Interference Channels

Amin Jafarian; Sriram Vishwanath

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arXiv · 1109.5336

Achievable Rates for K-user Gaussian Interference Channels

Amin Jafarian·Sriram Vishwanath

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Abstract

The aim of this paper is to study the achievable rates for a $K$ user Gaussian interference channels for any SNR using a combination of lattice and algebraic codes. Lattice codes are first used to transform the Gaussian interference channel (G-IFC) into a discrete input-output noiseless channel, and subsequently algebraic codes are developed to achieve good rates over this new alphabet. In this context, a quantity called efficiency is introduced which reflects the effectiveness of the algebraic coding strategy. The paper first addresses the problem of finding high efficiency algebraic codes. A combination of these codes with Construction-A lattices is then used to achieve non trivial rates for the original Gaussian interference channel.

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Amin Jafarian, Sriram Vishwanath. 2011-09-25. Achievable Rates for K-user Gaussian Interference Channels. https://arxiv.org/abs/1109.5336

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