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Appl. Sci. 2018, 8(3), 414; https://doi.org/10.3390/app8030414

Capture Effect in the FSA-Based Networks under Rayleigh, Rician and Nakagami-m Fading Channels

School of Information Science and Engineering, Xiamen University, Xiamen 361005, China
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Received: 30 January 2018 / Revised: 23 February 2018 / Accepted: 7 March 2018 / Published: 11 March 2018
(This article belongs to the Section Computer Science and Electrical Engineering)
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Abstract

Framed slotted aloha (FSA) is a multiple access protocol widely used in wireless communication for its simplicity and effectivity. The theoretical maximum channel utilization of FSA is approximately equal to 0.37 irrespective of the capture effect. In fact, the capture effect is a common phenomenon in wireless communication, which can increase the channel utilization. In this paper, we derive the closed-form expressions of capture probabilities under Rayleigh, Rician and Nakagami-m fading channels, respectively, and further give the optimal frame length which maximizes the channel utilization in the FSA-based networks. The numerical results are given for indicating the capture probabilities under different fading channels and their impacts on the optimal frame length and the maximum channel utilization. View Full-Text
Keywords: FSA; capture effect; Rayleigh; Rician; Nakagami-m; frame length; channel utilization FSA; capture effect; Rayleigh; Rician; Nakagami-m; frame length; channel utilization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Wang, Y.; Shi, J.; Chen, L. Capture Effect in the FSA-Based Networks under Rayleigh, Rician and Nakagami-m Fading Channels. Appl. Sci. 2018, 8, 414.

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