Proactive Bandwidth Estimation for IEEE 802.15.4-Based Networks

Muhammad Omer Farooq, T. Kunz


Estimating the available bandwidth in IEEE 802.15.4-based networks is a difficult and challenging task due to the shared nature of the wireless communication medium. The MAC layer decides the sharing of a communication medium, therefore the MAC layer dictates the amount of bandwidth available to a node. Some recent solutions consider the impact of the MAC layer back-off due to collision and transmitter and receiver non-synchronization on the available bandwidth, Available Bandwidth Estimation (ABE) is one such example. None of the existing solutions pro-actively consider the impact of additional overhead of an unslotted Carrier Sense Multiple Access Collision Avoidance (CSMA-CA) protocol with an increased data load inside a network on the available bandwidth. Therefore the amount of reported available bandwidth is not fully available to a node, hence this can result in poor admission decisions. In this paper, we show that increasing data load inside the IEEE 802.15.4-based network increases MAC layer overhead. Afterwards, we enhance the ABE bandwidth estimation and admission control algorithms so that they pro-actively consider the additional MAC layer overhead associated with an increased data load inside a network. We performed a number of simulations, and our simulation results show that the proposed proactive ABE method performs better than the original ABE method.
Original languageEnglish
Title of host publication2013 IEEE 77th Vehicular Technology Conference (VTC Spring)
Number of pages5
Place of PublicationDresden, Germany
Publication date01.06.2013
Article number6692722
ISBN (Print)978-146736337-2
Publication statusPublished - 01.06.2013
Externally publishedYes
Event2013 IEEE 77th Vehicular Technology Conference - Dresden, Germany
Duration: 02.06.201305.06.2013


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