Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QUICK: QoS-guaranteed Efficient Cloudlet Placement in Wireless
  Metropolitan Area Networks   This article defines the QoS-guaranteed efficient cloudlet deploy problem in
wireless metropolitan area network, which aims to minimize the average access
delay of mobile users i.e. the average delay when service requests are
successfully sent and being served by cloudlets. Meanwhile, we try to optimize
total deploy cost represented by the total number of deployed cloudlets. For
the first target, both un-designated capacity and constrained capacity cases
are studied, and we have designed efficient heuristic and clustering algorithms
respectively. We show our algorithms are more efficient than the existing
algorithm. For the second target, we formulate an integer linear programming to
minimize the number of used cloudlets with given average access delay
requirement. A clustering algorithm is devised to guarantee the scalability.
For a special case of the deploy cost optimization problem where all cloudlets'
computing capabilities have been given, i.e., designated capacity, a minimal
cloudlets efficient heuristic algorithm is further proposed. We finally
evaluate the performance of proposed algorithms through extensive experimental
simulations. Simulation results demonstrate the proposed algorithms are more
than 46% efficient than existing algorithms on the average cloudlet access
delay. Compared with existing algorithms, our proposed clustering and heuristic
algorithms can reduce the number of deployed cloudlets by about 50% averagely.

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The categories of this paper are: math
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph