2011•arXiv (Cornell University)Open access

Distributed Interference Alignment with Low Overhead

Yanjun Ma, Jiandong Li, Rui Chen

Abstract

Based on closed-form interference alignment (IA) solutions, a low overhead distributed interference alignment (LOIA) scheme is proposed in this paper for the $K$-user SISO interference channel, and extension to multiple antenna scenario is also considered. Compared with the iterative interference alignment (IIA) algorithm proposed by Gomadam et al., the overhead is greatly reduced. Simulation results show that the IIA algorithm is strictly suboptimal compared with our LOIA algorithm in the overhead-limited scenario.

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Key concepts: Overhead (engineering), Interference alignment, Interference (communication), Computer science, Scheme (mathematics), Channel (broadcasting), Antenna (radio), Algorithm