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Wireless Body Area networks (WBANs) are wireless sensor networks that interconnect miniaturized nodes with sensor or actuator capabilities in, on, or around a human body. Mobility is a key factor in WBAN design as the human body may be experiencing posture changes and be moving around in the environment. Most WBANs utilize only one wireless channel for communication. With recent interest in multi-channel...
The nature of wireless channel in a wireless body area network is highly dynamic and hence, any static design is trivially sub-optimal. In this paper we propose a cross-layer channel-adaptive framework to adjust the MAC frame body length of the data packets. We propose two different approaches to incorporate the impact of the time-varying channel gain in the transmission policy aiming to improve the...
Wireless Body Area networks (WBANs) aim at supporting a variety of health care applications with different quality of service (QoS) requirements under dynamic wireless channel conditions. Furthermore, there are many design constraints on the sensor nodes [1]. Therefore, it is very challenging to design MAC protocols for WBANs to offer scheduling flexibility, high reliability, energy efficiency and...
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