Interference Mitigation Schemes for Wireless Body Area Sensor Networks: A Comparative Survey.

Thien Le,Sangman Moh

doi:10.3390/s150613805

Abstract

A wireless body area sensor network (WBASN) consists of a coordinator and multiple sensors to monitor the biological signals and functions of the human body. This exciting area has motivated new research and standardization processes, especially in the area of WBASN performance and reliability. In scenarios of mobility or overlapped WBASNs, system performance will be significantly degraded because of unstable signal integrity. Hence, it is necessary to consider interference mitigation in the design. This survey presents a comparative review of interference mitigation schemes in WBASNs. Further, we show that current solutions are limited in reaching satisfactory performance, and thus, more advanced solutions should be developed in the future.

Highlights

A wireless body area sensor network (WBASN) is a wireless sensor network composed of short range, low power, and variable-data-rate sensors placed within, on, or around a human body to monitor biological signals and other functions such as movement patterns [1]
We have reviewed interference mitigation schemes for WBASNs
Coexistence of WBASNs has been revisited with respect to problems involving interference, and the existing inter-WBASN interference mitigation schemes have been categorized and qualitatively compared

Summary

Introduction

A wireless body area sensor network (WBASN) is a wireless sensor network composed of short range, low power, and variable-data-rate sensors placed within, on, or around a human body to monitor biological signals and other functions such as movement patterns [1]. Radio propagation in WBASNs is dynamic due to the mobility of a human body, and different human tissues may be affected differently by biosensor signals. It is clearly shown in [3] that the quality of signals is affected by the propagation around the human body in accordance with channel models. The effect of different kinds of human tissues to lossy signals is shown in the frequency range between 10 kHz and 1 GHz

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Discussion

Conclusion