Coded Single-Tone Signaling and Its Application to Resource Coordination and Interference Management in Femtocell Networks

TL;DR

This paper introduces coded single-tone signaling (STS), a novel over-the-air signaling method for femtocell networks that enhances resource coordination and interference management without additional overhead.

Contribution

It proposes a new coded STS scheme with properties like no overhead, no interference, and deep coverage, improving distributed resource management in femtocell networks.

Findings

No dedicated resource needed for signaling

Effective in mitigating near-far effects and interference

Enhances channel estimation and coverage

Abstract

Resource coordination and interference management is the key to achieving the benefits of femtocell networks. Over-the-air signaling is one of the most effective means for distributed dynamic resource coordination and interference management. However, the design of this type of signal is challenging. In this paper, we address the challenges and propose an effective solution, referred to as coded single-tone signaling (STS). The proposed coded STS scheme possesses certain highly desirable properties, such as no dedicated resource requirement (no overhead), no near-and-far effect, no inter-signal interference (no multi-user interference), low peak-to-average power ratio (deep coverage). In addition, the proposed coded STS can fully exploit frequency diversity and provides a means for high quality wideband channel estimation. The coded STS design is demonstrated through a concrete numerical example. Performance of the proposed coded STS and its effect on cochannel traffic channels are evaluated through simulations.