Detail publikace

Analytical performance of soft data fusion-aided spectrum sensing in hybrid terrestrial-satellite networks

CHANDRA, A. KUNDU, S. et al.

Originální název

Analytical performance of soft data fusion-aided spectrum sensing in hybrid terrestrial-satellite networks

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The cognitive radio (CR) technology is developed to help secondary users to utilize spectrum holes of the primary users (PUs) opportunistically. Accurate detection of spectrum holes via cooperative spectrum sensing (CSS) is essential for realization of CR protocols in next generation hybrid terrestrial-satellite networks. Soft data fusion refers to a class of efficient CSS schemes for CR networks to find presence or absence of a PU. Each CR user senses the PU and transmits its sensing information in terms of energy obtained using energy detector to fusion center (FC). Next, any of the soft data schemes, which differ in technique of combining the energy information, may be performed at FC to acquire a final decision about a PU. In the present paper, numerical analysis of various soft data-aided CSS schemes in different fading/shadowing environments is studied. In particular, closed-form expressions of detection probability for the known soft data schemes are derived for each of the popular fading models. A comparative performance of soft combining schemes is illustrated for various network and channel conditions. Further, an optimal detection threshold that minimizes the total error is also indicated for different soft schemes.

Klíčová slova

Cooperative spectrum sensing, soft data fusion, fading channel, detection probability

Autoři

CHANDRA, A.; KUNDU, S. et al.

Vydáno

1. 12. 2016

ISSN

1542-0973

Periodikum

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS AND NETWORKING

Ročník

99

Číslo

PP

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

19

Strany počet

19

BibTex

@article{BUT129599,
  author="CHANDRA, A. and KUNDU, S. et al.",
  title="Analytical performance of soft data fusion-aided spectrum sensing in hybrid terrestrial-satellite networks",
  journal="INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS AND NETWORKING",
  year="2016",
  volume="99",
  number="PP",
  pages="1--19",
  doi="10.1002/sat.1200",
  issn="1542-0973"
}