Cost-Effective Broadcast in Cellular Networks

TL;DR

This paper explores a cost-effective hybrid unicast-broadcast approach for high-traffic video services in cellular networks, using stochastic geometry to optimize service delivery and proposing periodic broadcasting to enhance network neutrality.

Contribution

It introduces a stochastic geometry model for cellular networks and proposes a periodic broadcasting scheme to reduce costs and network load for video streaming.

Findings

Hybrid broadcast-unicast reduces network load.

Periodic broadcasting improves cost efficiency.

Supports network neutrality debate.

Abstract

In recent years, video-related services such as YouTube and Netflix have generated huge amounts of traffic and the network neutrality debate has emerged as a major issue. In this paper, we consider feasibility of using a hybrid of unicast and broadcast in cellular networks for high-traffic services (e.g., video streaming), from the perspective of cost effectiveness. To reflect spatial characteristics of base stations (BSs) and mobile users (MUs), we use the stochastic geometry approach where BSs and MUs are modeled as independent homogeneous Poisson point processes (PPPs). With these assumptions and results, we show how to cope with the trade-off between broadcast and unicast for providing the service with affordable cost levels and reduced network load. Moreover, we propose the so called periodic broadcasting service, where popular video contents are periodically broadcast over cellular networks. This service will make a positive impact on the network neutrality debate by stimulating cooperation between mobile network operators (MNOs) and content providers (CPs).