DocumentCode :
244346
Title :
On Power Consumption of Wireless Sensor Nodes with Min(N,T) Policy in Spectrum Sharing Systems
Author :
Kabiri, Charles ; Zepernick, Hans-Jurgen ; Hung Tran
Author_Institution :
Blekinge Inst. of Technol., Karlskrona, Sweden
fYear :
2014
fDate :
18-21 May 2014
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we analyze the power consumption of wireless sensor nodes with min(N,T) policy and M/G/1 queue in the presence of Nakagami-m fading. In particular, this system setting is applied to a wireless sensor node operating in a cognitive radio system as secondary user in the presence of a primary user. As such, not only the queue policy influences the power consumption but also the interference power constraint imposed on the wireless sensor node by the primary user. Thus, a queued sleep/wake-up strategy is analyzed in order to mitigate the average power consumption of a sensor node using min(N,T) policy in the context of an M/G/1 queue and a spectrum sharing environment in the presence of signal fading. Numerical examples are presented to illustrate the impact of queuing parameters and fading channel on the power consumption of a wireless sensor node.
Keywords :
Nakagami channels; cognitive radio; queueing theory; radio spectrum management; radiofrequency interference; telecommunication power management; wireless sensor networks; M-G-1 queue policy; Nakagami-m fading channel; cognitive radio system; interference power constraint; min(N,T) policy; primary user; queued sleep strategy; queued wake-up strategy; secondary user; spectrum sharing system; wireless sensor node power consumption; Delays; Fading; Power demand; Queueing analysis; Servers; Wireless communication; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2014 IEEE 79th
Conference_Location :
Seoul
Type :
conf
DOI :
10.1109/VTCSpring.2014.7023011
Filename :
7023011
Link To Document :
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