On the hopping pattern design for D2D discovery with invariant

TL;DR

This paper introduces a novel hopping invariant feature for D2D discovery patterns, enabling efficient information delivery and reduced receiver complexity, adaptable to practical systems with system constraints.

Contribution

The paper proposes four new hopping patterns utilizing the hopping invariant, improving D2D discovery efficiency and practicality.

Findings

Hopping invariant enables information delivery without extra resources.

Designed schemes are independent of discovery frame number.

Performance analysis shows improved detection and reduced complexity.

Abstract

In this paper, we focus on the hopping pattern design for device-to-device (D2D) discovery. The requirements of hopping pattern is discussed, where the impact of specific system constraints, e.g., frequency hopping, is also taken into consideration. Specifically speaking, we discover and utilize the novel feature of resource hopping, i.e., "hopping invariant" to design four new hopping patterns and analyze their performance. The hopping invariant can be used to deliver information for specific users without extra radio resources, and due to the connection between hopping invariant and resource location, receiver complexity can be significantly reduced. Furthermore, our schemes are designed to be independent of discovery frame number, which makes them more suitable to be implemented in practical systems.