Label next to reference in abbrvnat

I am using the abbrvnat style, but I want the label to appear next to each reference. For example, I want to have:

[Atzori et al., 2010] L. Atzori, A. Iera, and G. Morabito. The Internet 
of Things: A Survey. Computer Networks, 54(15):2787-2805, 2010.

Instead of :

L. Atzori, A. Iera, and G. Morabito. The Internet of Things: A Survey. 
Computer Networks, 54(15):2787-2805, 2010.

In the following code:

%File: Temp.tex

documentclass[12pt]{report}

usepackage{setspace}
usepackage[top=2.5cm, bottom=2.5cm, left=3.5cm, right=2.5cm] {geometry}
usepackage[latin1]{inputenc}
usepackage[T1]{fontenc}
usepackage[english]{babel}
usepackage[square]{natbib}

begin{document}
begin{abstract}
The IoT~citep{ref1}
end{abstract}
bibliographystyle{abbrvnat}
bibliography{biblioTemp}
end{document}

%File: biblioTemp.bib

@article{ref1,
    author = {Luigi Atzori and Antonio Iera and Giacomo Morabito},
    title = {{The Internet of Things: A Survey}},
    journal = {Computer Networks},
    volume = {54},
    number = {15},
    pages = {2787-2805},
    year = {2010},
    issn = {1389-1286}
}

%Output

%Desired Output