Achievable Rate Regions for the Dirty Multiple Access Channel with Partial Side Information at the Transmitters

TL;DR

This paper extends lattice coding strategies to establish achievable rate regions for the multiple access channel with partially known side information at transmitters, showing that partial knowledge reduces capacity similarly to the Costa Gaussian channel.

Contribution

It introduces a novel extension of lattice strategies to the case of partial side information in MACs, providing new achievable rate regions.

Findings

Partial side information reduces the achievable rate regions.

Lattice strategies can be adapted for partially known side information.

Rate reduction parallels that in Costa Gaussian channels.

Abstract

In this paper, we establish achievable rate regions for the multiple access channel (MAC) with side information partially known (estimated or sensed version) at the transmitters. Actually, we extend the lattice strategies used by Philosof-Zamir for the MAC with full side information at the transmitters to the partially known case. We show that the sensed or estimated side information reduces the rate regions, the same as that occurs for Costa Gaussian channel.