IEEE J Biomed Health Inform. 2015 Mar;19(2):549-58. doi: 10.1109/JBHI.2014.2313343. Epub 2014 Mar 24.
Energy is scarce in mobile computing devices including wearable and implantable devices in a wireless body area network. In this paper, an adaptive routing protocol is developed and analyzed which minimizes the energy cost per bit of information by using the channel information to choose the best strategy to route data. In this approach, the source node will switch between direct and relayed communication based on the quality of the link and will use the relay only if the channel quality is below a certain threshold. The mathematical model is then validated through simulations which shows that the adaptive routing strategy can improve energy efficiency significantly compared with existing methods.
能量在移动计算设备中是稀缺的，包括无线体域网中的可穿戴设备和植入式设备。在本文中，开发并分析了一种自适应路由协议，该协议通过使用信道信息来选择最佳的数据路由策略，从而最小化每比特信息的能量成本。在这种方法中，源节点将根据链路质量在直接通信和中继通信之间切换，并且仅在信道质量低于某个阈值时才使用中继。然后通过仿真验证了数学模型，结果表明与现有方法相比，自适应路由策略可以显著提高能量效率。
