Transmission Techniques for Relay-Interference Networks

Abstract

In this paper we study the relay-interference wireless network, in which relay (helper) nodes are to facilitate competing information flows over a wireless network. We examine this in the context of a deterministic wireless interaction model, which eliminates the channel noise and focuses on the signal interactions. Using this model, we show that almost all the known schemes such as interference suppression, interference alignment and interference separation are necessary for relay-interference networks. In addition, we discover a new interference management technique, which we call interference neutralization, which allows for over-the-air interference removal, without the transmitters having complete access the interfering signals. We show that interference separation, suppression, and neutralization arise in a fundamental manner, since we show complete characterizations for special configurations of the relay-interference network.

8 pages, 8 figures, presented at 46. Allerton Conf. On Comm., Control, and Computing 2008

References in corpus (3)

• A Deterministic Approach to Wireless Relay Networks
• Approximate Capacity of Gaussian Relay Networks
• The two-user Gaussian interference channel: a deterministic view

Cited by in corpus (9)

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• Interference Steering to Manage Interference
• Capacity of a Class of Linear Binary Field Multi-source Relay Networks
• Symmetric Capacity of the Gaussian Interference Channel with an Out-of-Band Relay to within 1.15 Bits
• On Interference Networks over Finite Fields
• Reciprocity in Linear Deterministic Networks under Linear Coding
• On the Feedback Capacity of the Fully Connected $K$-User Interference Channel
• The Generalized Degrees of Freedom of the Interference Relay Channel with Strong Interference
• Dynamic Interference Steering in Heterogeneous Cellular Networks