Spreading Information in Mobile Wireless Networks

TL;DR

This paper analyzes how information spreads in mobile wireless networks using device-to-device communication, deriving formulas for successful reception and optimizing transmission power under constraints.

Contribution

It introduces a stochastic geometry-based model for information dissemination in mobile networks and provides an optimal power control strategy.

Findings

Derived the average number of nodes receiving information as a function of power and transmissions.

Formulated and solved a redundancy minimization problem under power and delay constraints.

Proposed an optimal transmission power rule for source nodes.

Abstract

Device-to-device (D2D) communication enables us to spread information in the local area without infrastructure support. In this paper, we focus on information spreading in mobile wireless networks where all nodes move around. The source nodes deliver a given information packet to mobile users using D2D communication as an underlay to the cellular uplink. By stochastic geometry, we derive the average number of nodes that have successfully received a given information packet as a function of the transmission power and the number of transmissions. Based on these results, we formulate a redundancy minimization problem under the maximum transmission power and delay constraints. By solving the problem, we provide an optimal rule for the transmission power of the source node.