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Analysis of Energy Consumption and Sleeping Protocols in PHY-MAC for UWB Networks  

Khan, M.A. (The graduate School of information and Telecommunications Engineering, Inha University)
Parvez, A.Al (The graduate School of information and Telecommunications Engineering, Inha University)
Hoque, M.E. (The graduate School of information and Telecommunications Engineering, Inha University)
An, Xizhi (The graduate School of information and Telecommunications Engineering, Inha University)
Kwak, Kyung-Sup (The graduate School of information and Telecommunications Engineering, Inha University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.12B, 2006 , pp. 1028-1036 More about this Journal
Abstract
Energy conservation is an important issue in wireless networks, especially for self-organized, low power, low data-rate impulse-radio ultra-wideband (IR-UWB) networks, where every node is a battery-driven device. To conserve energy, it is necessary to turn node into sleep state when no data exist. This paper addresses the energy consumption analysis of Direct-Sequence (DS) versus Time-Hopping (TH) multiple accesses and two kinds of sleeping protocols (slotted and unslotted) in PHY-MAC for Un networks. We introduce an analytical model for energy consumption or a node in both TH and DS multiple accesses and evaluate the energy consumption comparison between them and also the performance of the proposed sleeping protocols. Simulation results show that the energy consumption per packet of DS case is less than TH case and for slotted sleeping is less than that of unslotted one for bursty load case, but with respect to the load access delay unslotted one consumes less energy, that maximize node lifetime.
Keywords
Energy Consumption; Time Hopping (TH); Direct Sequence (DS); Ultra-wideband (UWB); PHV-MAC; Sleeping Protocols;
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