Abstract
Wireless Body Area Network (WBAN) has permeated in various fields, such as e-health, entertainment, sports and so on. However, Inter-Wbaninterference makes it rather difficult to ensure the reliability of data transmission. While a WBAN comes into the interference range of others, the collision is inevitable if they are working on the same channel. In this paper, we design a channel hopping strategy based on the human movement trajectory, which allows two WBANs with high meeting probability to hop to different channels, thus decreases the probability of interference. Furthermore, we design a more practical metric, which reflects the asynchronous nature of WBANs' channel hopping status, to measure the probability of two WBANs hopping to the same channel. In addition, the proposed strategy is energy efficiency and low latency without channel sensing or negotiating with other WBANs. Simulation results demonstrate the performance of the proposed strategy.
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