On Adaptive Energy-Efficient Transmission in WSNs | Zendy

Muhammad Tahir | Zendy; Nadeem Javaid | Zendy; Adeel Iqbal | Zendy; Zahoor Ali Khan | Zendy; Nabil Alrajeh | Zendy

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On Adaptive Energy-Efficient Transmission in WSNs

Author(s) -

Muhammad Tahir,

Nadeem Javaid,

Adeel Iqbal,

Zahoor Ali Khan,

Nabil Alrajeh

Publication year - 2013

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1155/2013/923714

Subject(s) - computer science , overhead (engineering) , wireless sensor network , transmitter , energy consumption , network packet , node (physics) , transmission (telecommunications) , computer network , energy (signal processing) , compensation (psychology) , process (computing) , transmitter power output , power control , efficient energy use , real time computing , power (physics) , channel (broadcasting) , telecommunications , electrical engineering , psychology , statistics , mathematics , physics , structural engineering , quantum mechanics , psychoanalysis , engineering , operating system

One of the major challenges in design of wireless sensor networks (WSNs) is to reduce energy consumption of sensor nodes to prolong lifetime of finite capacity batteries. In this paper, we propose energy-efficient adaptive scheme for transmission (EAST) in WSNs. EAST is an IEEE 802.15.4 standard compliant. In this scheme, open-looping feedback process is used for temperature-aware link quality estimation and compensation, wherea closed-loop feedback process helps to divide network into three logical regions to minimize overhead of control packets. Threshold on transmitter power loss (RSSIloss) and current number of nodes (nc(t)) in each region help to adapt transmit power level (Plevel) according to link quality changes due to temperature variation. Evaluation of the proposed scheme is done by considering mobile sensor nodes and reference node both static and mobile. Simulation results show that the proposed scheme effectively adapts transmission Plevel to changing link quality with less control packets overhead and energy consumption as compared to classical approach with single region in which maximum transmitter Plevel assigned to compensate temperature variation.

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