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Modeling On-Body DTN Packet Routing Delay in the Presence of Postural Disconnections.

Muhannad Quwaider¹, Mahmoud Taghizadeh², Subir Biswas²

¹Department of Computer Engineering, Jordan University of Science and Technology, Irbid, Jordan 22110-3030, Jordan.

EURASIP Journal on Wireless Communications and Networking

|December 23, 2014

Summary

This study models Wireless Body Area Network (WBAN) routing, showing that identifying important sensor nodes can reduce device count without impacting data delivery delay. This optimizes WBAN performance for reliable health monitoring.

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Area of Science:

Biomedical Engineering
Wireless Communications
Network Protocols

Background:

Wireless Body Area Networks (WBANs) face challenges with on-body network disconnections due to radio link limitations, unpredictable signal attenuation, and human movement.
Efficient data routing is crucial for reliable WBAN operation, especially in delay-sensitive applications.

Purpose of the Study:

To develop a stochastic modeling framework for store-and-forward packet routing in WBANs, considering postural partitioning.
To evaluate the performance of various on-body Delay Tolerant Network (DTN) routing protocols.
To introduce a method for assessing the topological importance of individual WBAN sensor nodes.

Main Methods:

Construction of a prototype WBAN for experimental characterization of on-body topology.
Development of delay modeling techniques for single-copy on-body DTN routing protocols.
Evaluation of routing protocols (opportunistic, randomized, etc.) through simulation and experimental comparison with the developed model.

Main Results:

The developed stochastic model accurately predicts end-to-end routing delay for different protocols.
Performance evaluation confirmed the effectiveness of protocols capturing multiscale topological localities.
A novel mechanism for evaluating sensor node topological importance was developed and validated.

Conclusions:

Identifying topologically important sensor nodes allows for selective reduction of the on-body sensor count.
Reducing sensor count based on topological importance can be achieved without significant sacrifice in packet delivery delay.
The findings contribute to optimizing WBAN design for efficiency and reliability in health monitoring.