One of the main issues experienced in wireless body sensor networks (WBSNs) is the destructive impacts of “mutual interference” caused by neighboring WBSNs on each other’s performance. Research communities have proposed several approaches to mitigate the impacts of mutual interference on the reliability of data transmission and sensor’s energy consumption. However, the proposed approaches came with a number of limitations, such as significant modification of the standard protocol or imposing a high level of complexity. In this paper, a range of schemes are proposed, and their performances are evaluated in the presence of mutual interference experienced in a dynamic environment. More specifically, we consider a situation where a large number of people (each individual covered with a number of sensors to fetch the human vital sign) are gathered at a sport centre to enjoy an event. In such a dynamic environment, people would highly likely experience mutual interference which would destructively impact on WBSN’s performances and eventually would result in an unreliable medical outcome. A simulation study is conducted in which a set of schemes proposed that indicates a gradual improvement of WBSN’s performances in terms of reliability of data transmission and sensor’s energy consumption. Our obtained results show that the frequency-adaptation strategy combined with phase-adaptation approach significantly improves the performance of WBSNs in the presence of mutual interference in a dynamic environment. Moreover, an experimental study is carried out to examine the feasibility of implementing the predominant scheme on real-world sensor devices and to further support the outcome of the simulation study.

无线人体传感器网络（WBSN）遇到的主要问题之一是相邻WBSN对彼此的性能造成的“相互干扰”的破坏性影响。研究团体提出了几种减轻相互干扰对数据传输可靠性和传感器能耗的影响的方法。然而，所提出的方法具有许多局限性，例如对标准协议的重大修改或施加了高度的复杂性。本文提出了一系列方案，并在动态环境中遇到相互干扰的情况下评估了它们的性能。进一步来说，我们考虑了这样一种情况：许多人（每个人都被多个传感器覆盖以获取人类生命体征）聚集在体育中心享受比赛。在这样一个动态的环境中，人们很可能会遇到相互干扰，这将对WBSN的性能造成破坏性影响，并最终导致不可靠的医疗结果。进行了仿真研究，其中提出了一系列方案，这些方案表明WBSN在数据传输的可靠性和传感器的能耗方面的性能正在逐步提高。我们获得的结果表明，在动态环境中存在相互干扰的情况下，频率自适应策略与相位自适应方法相结合可以显着提高WBSN的性能。此外，