# Routing Protocols for Wireless Body Area Networks: Recent Advances and Open Challenges

## TL;DR

This paper reviews recent routing protocols for Wireless Body Area Networks, highlighting challenges like energy limits and topology changes, and suggests future research directions.

## Contribution

The paper provides a comprehensive survey and analysis of state-of-the-art WBAN routing protocols and identifies open challenges.

## Key findings

- WBAN routing protocols face challenges such as limited energy and frequent topology changes.
- A categorized survey of recent protocols reveals performance differences across categories.
- Open challenges include meeting diverse Quality of Service needs and improving reliability.

## Abstract

The growing demand for personalized healthcare is driving the development of Wireless Body Area Networks (WBANs). These networks enable continuous monitoring of physiological parameters. In WBANs, routing protocols are essential for ensuring reliable data delivery. However, designing efficient protocols is challenging due to the specific environment of the human body. Key issues include limited energy, frequent topology changes caused by movement, and diverse Quality of Service needs. In this review, we investigate, summarize, and analyze state-of-the-art WBAN routing protocols. Specifically, we outline the architecture of WBAN-based eHealth systems and review major design challenges. We then present a categorized survey of recent protocols. Subsequently, we examine the distribution across protocol categories and compare their performance. Finally, we identify open challenges and discuss future research directions.