Spectrum Sharing Towards Delay Deterministic Wireless Network: Delay Performance Analysis

TL;DR

This paper investigates how spectrum sharing can reduce delay and jitter in wireless networks supporting Machine-type Communication, using stochastic geometry and queueing theory to model and analyze performance improvements.

Contribution

It introduces a novel analytical framework combining stochastic geometry and queueing theory to evaluate delay and jitter in spectrum sharing wireless networks for MTC.

Findings

Spectrum sharing reduces delay and jitter effectively.

The model accurately predicts performance with spectrum sharing.

Simulation confirms minimal interference to licensed networks.

Abstract

To accommodate Machine-type Communication (MTC) service, the wireless network needs to support low-delay and low-jitter data transmission, realizing delay deterministic wireless network. This paper analyzes the delay and jitter of the wireless network with and without spectrum sharing. When sharing the spectrum of the licensed network, the spectrum band of wireless network can be expanded, such that the delay and jitter of data transmission are reduced. The challenge of this research is to model the relation between the delay/jitter and the parameters such as node distribution, transmit power, and bandwidth, etc. To this end, this paper applies stochastic geometry and queueing theory to analyze the outage probability of the licensed network and the delay performance of the wireless network with and without spectrum sharing. By establishing the M/G/1 queueing model for the queueing of the Base Station (BS) in the wireless network, the downlink delay and jitter are derived. Monte Carlo simulation results show that the spectrum sharing reduces the delay and jitter without causing serious interference to the licensed network, which can lay a foundation for the application of spectrum sharing in delay deterministic wireless network supporting MTC service.