Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fundamental Tradeoffs on Green Wireless Networks   Traditional design of mobile wireless networks mainly focuses on ubiquitous
access and large capacity. However, as energy saving and environmental
protection become a global demand and inevitable trend, wireless researchers
and engineers need to shift their focus to energy-efficiency oriented design,
that is, green radio. In this paper, we propose a framework for green radio
research and integrate the fundamental issues that are currently scattered. The
skeleton of the framework consists of four fundamental tradeoffs: deployment
efficiency - energy efficiency tradeoff, spectrum efficiency - energy
efficiency tradeoff, bandwidth - power tradeoff, and delay - power tradeoff.
With the help of the four fundamental tradeoffs, we demonstrate that key
network performance/cost indicators are all stringed together.

31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an