Rethinking the Role of Interference in Wireless Networks

Abstract

This article re-examines the fundamental notion of interference in wireless networks by contrasting traditional approaches to new concepts that handle interference in a creative way. Specifically, we discuss the fundamental limits of the interference channel and present the interference alignment technique and its extension of signal alignment techniques. Contrary to this traditional view, which treats interference as a detrimental phenomenon, we introduce three concepts that handle interference as a useful resource. The first concept exploits interference at the modulation level and leads to simple multiuser downlink precoding that provides significant energy savings. The second concept uses radio frequency radiation for energy harvesting and handles interference as a source of green energy. The last concept refers to a secrecy environment and uses interference as an efficient means to jam potential eavesdroppers. These three techniques bring a new vision about interference in wireless networks and motivate a plethora of potential new applications and services.

6 figures, accepted in IEEE Communications Magazine

References in corpus (2)

• Improving Physical Layer Secrecy Using Full-Duplex Jamming Receivers
• Beamforming for MISO Interference Channels with QoS and RF Energy Transfer

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• Interference Exploitation-based Hybrid Precoding with Robustness Against Phase Errors
• Interference Exploitation Precoding for Multi-Level Modulations: Closed-Form Solutions
• Power Allocation for Energy Efficiency and Secrecy of Interference Wireless Networks
• Coordinated Hybrid Precoding for Interference Exploitation in Heterogeneous Networks
• Interference Exploitation via Symbol-Level Precoding: Overview, State-of-the-Art and Future Directions
• Massive MIMO 1-Bit DAC Transmission: A Low-Complexity Symbol Scaling Approach
• Interference Exploitation Precoding Made Practical: Closed-Form Solutions with Optimal Performance
• Passive Loop Interference Suppression in Large-Scale Full-Duplex Cellular Networks
• Interference Exploitation 1-Bit Massive MIMO Precoding: A Partial Branch-and-Bound Solution with Near-Optimal Performance
• Robust Transceiver Design Based on Interference Alignment for Multi-User Multi-Cell MIMO Networks with Channel Uncertainty
• Constructive Interference Based Secure Precoding: A New Dimension in Physical Layer Security
• Near-Optimal Interference Exploitation 1-Bit Massive MIMO Precoding via Partial Branch-and-Bound