Towards Power Efficient MAC Protocol for In-Body and On-Body Sensor Networks

TL;DR

This paper evaluates and proposes enhancements for power-efficient MAC protocols tailored for in-body and on-body sensor networks, focusing on traffic-based wakeup mechanisms and multi-band bridging to improve energy efficiency and network integration.

Contribution

It introduces a Traffic Based Wakeup Mechanism and a Bridging function to enhance power efficiency and multi-band connectivity in body sensor networks.

Findings

Beacon-enabled IEEE 802.15.4 performs well in on-body scenarios.

Traffic-based wakeup reduces energy consumption.

Bridging function enables multi-band network integration.

Abstract

This paper presents an empirical discussion on the design and implementation of a power-efficient Medium Access Control (MAC) protocol for in-body and on-body sensor networks. We analyze the performance of a beacon-enabled IEEE 802.15.4, PB-TDMA, and S-MAC protocols for on-body sensor networks. We further present a Traffic Based Wakeup Mechanism that utilizes the traffic patterns of the BAN Nodes (BNs) to accommodate the entire BSN traffic. To enable a logical connection between different BNs working on different frequency bands, a method called Bridging function is proposed. The Bridging function integrates all BNs working on different bands into a complete BSN.