18,017 research outputs found
Optimal Base Station Placement: A Stochastic Method Using Interference Gradient In Downlink Case
In this paper, we study the optimal placement and optimal number of base
stations added to an existing wireless data network through the interference
gradient method. This proposed method considers a sub-region of the existing
wireless data network, hereafter called region of interest. In this region, the
provider wants to increase the network coverage and the users throughput. In
this aim, the provider needs to determine the optimal number of base stations
to be added and their optimal placement. The proposed approach is based on the
Delaunay triangulation of the region of interest and the gradient descent
method in each triangle to compute the minimum interference locations. We
quantify the increase of coverage and throughput.Comment: This work has been presented in the 5th International ICST Conference
on Performance Evaluation Methodologies and Tools (Valuetools 2011
Laplace Functional Ordering of Point Processes in Large-scale Wireless Networks
Stochastic orders on point processes are partial orders which capture notions
like being larger or more variable. Laplace functional ordering of point
processes is a useful stochastic order for comparing spatial deployments of
wireless networks. It is shown that the ordering of point processes is
preserved under independent operations such as marking, thinning, clustering,
superposition, and random translation. Laplace functional ordering can be used
to establish comparisons of several performance metrics such as coverage
probability, achievable rate, and resource allocation even when closed form
expressions of such metrics are unavailable. Applications in several network
scenarios are also provided where tradeoffs between coverage and interference
as well as fairness and peakyness are studied. Monte-Carlo simulations are used
to supplement our analytical results.Comment: 30 pages, 5 figures, Submitted to Hindawi Wireless Communications and
Mobile Computin
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