Robust Communication system for Body Sensor Networks

Intelligent Handover Strategy for Body Sensor Networks

Introduction

Body Sensor Networks (BSNs) enable continuous, non-intrusive, and remote health monitoring, and are widely considered as the next generation of healthcare technology. One of the main challenges in engineering BSNs is ensuring that communication is prompt, reliable, and energy-efficient. The objective of our project is to develop communication protocols to meet these stringent requirements of BSNs. As a past work, an optimized handover strategy with user movement trend awareness has been proposed for BSNs with significant performance improvement shown by simulation results. Now we are investigating the inter-user interference issues in BSNs. Inter-user interference refers to the interference in desired communication when several BSNs operate in the same vicinity. As BSNs will be commonly utilized in aggregated places like hospitals, the inter-user interference exist widely and severely. We are trying to provide a solution to this problem with minimum cost.


Objective

  • The primary goal of our design is to ensure continuous communication in the scenario of multiple BSN wears in the same vicinity.

Challenges

  • Effective identification of inter-user interference
  • Effective identification of inter-user interference
  • Intelligent channel assignment algorithm

Approach

  • Our proposed inter-user interference avoidance system consists of four steps , i.e. performance degradation detection, channel sensing, channel assignment, and channel switching.
  • The overall idea is that the intra-communication within a BSN should change from existing channel to another channel if inter-user interference is detected. The challenge is the effective identification of inter-user interference and intelligent channel assignment in a crowded scenario

Inter-BSN interference mitigation system

Introduction

Inter-BSN interference refers to the interference in desired communication when several BSNs operate in the same vicinity. As BSNs will be commonly utilized in aggregated places like hospitals, the inter-BSN interference exists widely and severely.

Objective

  • To design an inter-BSN interference mitigation (IIM) system to ensure QoS provisioning in the case of inter-BSN interference.

Challenges

  • The determination of performance threshold
  • The design of coordinated intra-BSN transmission scheme
  • Distributed channel reassignment algorithm

Approach

  • Our IIM system consists of three parts, namely, the initiation of IIM system, the detection of inter-BSN interference, and the IIM methodologies.