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Sensors 2016, 16(4), 457; doi:10.3390/s16040457

On the Achievable Throughput Over TVWS Sensor Networks

1
Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Naples 80126, Italy
2
Multimedia Communications Laboratory, CNIT, Naples 80126, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Leonhard M. Reindl
Received: 16 February 2016 / Revised: 18 March 2016 / Accepted: 22 March 2016 / Published: 30 March 2016
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [234 KB, uploaded 30 March 2016]   |  

Abstract

In this letter, we study the throughput achievable by an unlicensed sensor network operating over TV white space spectrum in presence of coexistence interference. Through the letter, we first analytically derive the achievable throughput as a function of the channel ordering. Then, we show that the problem of deriving the maximum expected throughput through exhaustive search is computationally unfeasible. Finally, we derive a computational-efficient algorithm characterized by polynomial-time complexity to compute the channel set maximizing the expected throughput and, stemming from this, we derive a closed-form expression of the maximum expected throughput. Numerical simulations validate the theoretical analysis. View Full-Text
Keywords: white space; secondary; cognitive radio; sensor network; J0101 white space; secondary; cognitive radio; sensor network; J0101
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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Caleffi, M.; Cacciapuoti, A.S. On the Achievable Throughput Over TVWS Sensor Networks. Sensors 2016, 16, 457.

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