Adaptive wireless communications under competition and jamming in energy constrained networks
Khan, Zaheer; Lehtomäki, Janne; Vasilakos, Athanasios V.; MacKenzie, Allen B.; Juntti, Markku (2016-06-28)
Khan, Z., Lehtomäki, J., Vasilakos, A.V. et al. Wireless Netw (2018) 24: 151. https://doi.org/10.1007/s11276-016-1324-x
© Springer Science+Business Media New York 2016. This is a post-peer-review, pre-copyedit version of an article published in Wireless Networks. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11276-016-1324-x.
We propose a framed slotted Aloha-based adaptive method for robust communication between autonomous wireless nodes competing to access a channel under unknown network conditions such as adversarial disruptions. With energy as a scarce resource, we show that in order to disrupt communications, our method forces the reactive adversary to incur higher energy cost relative to a legitimate node. Consequently, the adversary depletes its energy resources and stops attacking the network. Using the proposed method, a transmitter node changes the number of selected time slots and the access probability in each selected time slot based on the number of unsuccessful transmissions of a data packet. On the receiver side, a receiver node changes the probability of listening in a time slot based on the number of unsuccessful communication attempts of a packet. We compare the proposed method with two other framed slotted Aloha-based methods in terms of average energy consumption and average time required to communicate a packet. For performance evaluation, we consider scenarios in which: (1) Multiple nodes compete to access a channel. (2) Nodes compete in the presence of adversarial attacks. (3) Nodes compete in the presence of channel errors and capture effect.
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