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2014-06-24
New High-Rate UWB Scheme for WBAN-Based Healthcare Systems
By
Progress In Electromagnetics Research B, Vol. 60, 125-139, 2014
Abstract
Given the emphasis on increasing wireless network usage for healthcare application, e.g. Wireless Body Area Network (WBAN), the need for high-rate physical layer has become a genuine concern from research and industrial community. The use of the Ultra-Wideband (UWB) is looking especially bright for such systems given its lower energy consumption and performances towards frequency-selective channels. However, the Multi-Band-OFDM-based UWB technique has some inherent limitations as loss in spectral efficiency due to the use of Cyclic-Prefix (CP). In this paper, a new physical layer scheme for high-rate wireless body area networks based on MB-OFDM with Offset Quadrature Amplitude Modulation (OQAM) modulation is presented. The proposed MB-OFDM/OQAM can achieve high spectral and power efficiency than conventional MB-OFDM system. Moreover, the use of the CP Interval in the conventional MBOFDM removes efficiently the Inter-Symbols Interferences (ISI) but remains ineffective towards the Inter-Carriers Interferences (ICI) caused by the channel frequency offset (FO). The performances evaluation of the proposed technique will be carried-out in realistic UWB-WBANs channels with various scenarios, which will be also presented and studied herein.
Citation
Zakaria Mohammadi, Rachid Saadane, and Driss Aboutajdine, "New High-Rate UWB Scheme for WBAN-Based Healthcare Systems," Progress In Electromagnetics Research B, Vol. 60, 125-139, 2014.
doi:10.2528/PIERB14050205
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