Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1310
Title: Joint Optimization of Transmission Power Level and Packet Size for WSN Lifetime Maximization
Authors: Akbaş, Ayhan
Yıldız, Hüseyin Uğur
Tavlı, Bülent
Uludağ, Süleyman
143109
Keywords: Wireless sensor networks
network lifetime
mixed integer programming
transmission power control
data packet size
energy efficiency
Issue Date: 15-Jun-2016
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Source: Akbas, A., Yildiz, H. U., Tavli, B., & Uludag, S. (2016). Joint optimization of transmission power level and packet size for WSN lifetime maximization. IEEE Sensors Journal, 16(12), 5084-5094.
Abstract: In pursuit of better energy efficiency and enhanced network lifetime in wireless sensor networks (WSNs), two crucial factors are data packet size and transmission power level. On one hand, smaller packet size reduces the overall impact of bit error rates on packet loss. However, the consequence of smaller packet size is fragmentation into more data packets and thereby dissipation of increased energy. Hence, there emerges a delicate engineering tradeoff in deciding the data packet size, where both low and high data packet size decisions lead to certain energy inefficiency issues. On the other hand, increasing transmission power level decreases packet loss probability, which is another decision variable to optimize for maximizing network lifetime. Joint consideration of these two factors exacerbates the complexity of the optimization problem for the objective of the network lifetime maximization. In this paper, we develop a realistic WSN link layer model built on top of the empirically verified energy dissipation characteristics of Mica2 motes and WSN channel models. We make use of the aforementioned link layer model to design a novel mixed integer programming (MIP) framework for the joint optimization of transmission power level and data packet size to take up the challenge introduced above. Numerical evaluations of the MIP framework with the analysis of the results over a large parameter space are performed to characterize the effects of joint optimization of packet size and power level on WSN lifetime.
URI: https://ieeexplore.ieee.org/document/7444134/
https://hdl.handle.net/20.500.11851/1310
ISSN: 1530-437X
1558-1748
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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