Priority based bandwidth allocation in wireless sensor networks

TL;DR

This paper proposes a MAC layer modification for wireless sensor networks that allocates bandwidth based on data priority, aiming to meet real-time deadlines by reducing delays for high-priority data.

Contribution

Introduces a priority-based bandwidth allocation scheme at the MAC layer through a queuing model to improve real-time data transmission in sensor networks.

Findings

Enhanced bandwidth allocation for high-priority data

Reduced end-to-end delay for real-time applications

Effective performance across different node distributions

Abstract

Most of the sensor network applications need real time communication and the need for deadline aware real time communication is becoming eminent in these applications. These applications have different dead line requirements also. The real time applications of wireless sensor networks are bandwidth sensitive and need higher share of bandwidth for higher priority data to meet the dead line requirements. In this paper we focus on the MAC layer modifications to meet the real time requirements of different priority data. Bandwidth partitioning among different priority transmissions is implemented through MAC layer modifications. The MAC layer implements a queuing model that supports lower transfer rate for lower priority packets and higher transfer rate for real time packets with higher priority, minimizing the end to end delay. The performance of the algorithm is evaluated with varying node distribution.