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Ultra-wideband communication is a promising enabling technology for future broadband wireless multimedia services. A simple and robust medium-access-control (MAC) protocol is of critical importance to utilize the large bandwidth of UWB channels and to enable numerous new applications and services cost effectively. In this article, we introduce an efficient MAC protocol design for both centralized...
Localization has many important applications in wireless sensor networks (WSNs). A variety of technologies, such as acoustic, infrared and UWB (ultra-wide band) media have been utilized for localization purposes. In this paper, we propose a holistic, bottom-up design of a UWB-based communication architecture and related protocols for localization in WSNs. A new UWB coding method, called U-BOTH (UWB...
The inherent channel characteristics of impulse-based UWB networks affect the MAC layer performance significantly. Previous studies on evaluating MAC protocols are based on prolonged simulations, and do not account for the multiple-access interference that arises due to multipath delay spread. In this work, we develop CTU, an analytical framework that captures the performance of MAC protocols, while...
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