Graduate School of Information and Telecommunications, Inha University, Incheon, South Korea.
J Med Syst. 2012 Oct;36(5):2893-900. doi: 10.1007/s10916-011-9767-1. Epub 2011 Aug 24.
A Wireless Body Area Network (WBAN) is expected to play a significant role in future healthcare system. It interconnects low-cost and intelligent sensor nodes in, on, or around a human body to serve a variety of medical applications. It can be used to diagnose and treat patients with chronic diseases such as hypertensions, diabetes, and cardiovascular diseases. The lightweight sensor nodes integrated in WBAN require low-power operation, which can be achieved using different optimization techniques. We introduce a Traffic-adaptive MAC protocol (TaMAC) for WBAN that supports dual wakeup mechanisms for normal, emergency, and on-demand traffic. In this letter, the TaMAC protocol is simulated using a well-known Network Simulator 2 (NS-2). The problem of multiple emergency nodes is solved using both wakeup radio and CSMA/CA protocol. The power consumption, delay, and throughput performance are closely compared with beacon-enabled IEEE 802.15.4 MAC protocol using extensive simulations.
无线体域网 (WBAN) 有望在未来的医疗系统中发挥重要作用。它将低成本、智能的传感器节点互连在人体内部、表面或周围，以服务于各种医疗应用。它可用于诊断和治疗高血压、糖尿病和心血管疾病等慢性病患者。集成在 WBAN 中的轻量级传感器节点需要低功耗操作，可以使用不同的优化技术来实现。我们为 WBAN 引入了一种流量自适应 MAC 协议 (TaMAC)，该协议支持正常、紧急和按需流量的双唤醒机制。在这封信中，使用著名的网络模拟器 2 (NS-2) 对 TaMAC 协议进行了仿真。使用唤醒无线电和 CSMA/CA 协议解决了多个紧急节点的问题。通过广泛的仿真，对功率消耗、延迟和吞吐量性能与基于信标的 IEEE 802.15.4 MAC 协议进行了紧密比较。
