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Heterogeneous wireless networks (HetNets) provide a means to increase network capacity by introducing small cells and adopting a layered architecture. HetNets allocate resources flexibly through time sharing and cell range expansion/contraction allow
Externí odkaz:
http://arxiv.org/abs/1408.1764
We use fluid limits to explore the (in)stability properties of wireless networks with queue-based random-access algorithms. Queue-based random-access schemes are simple and inherently distributed in nature, yet provide the capability to match the opt
Externí odkaz:
http://arxiv.org/abs/1302.5945
Publikováno v:
IEEE Transactions on Information Theory, vol. 59, pp. 3811 - 3832, June 2013
Consider several source nodes communicating across a wireless network to a destination node with the help of several layers of relay nodes. Recent work by Avestimehr et al. has approximated the capacity of this network up to an additive gap. The comm
Externí odkaz:
http://arxiv.org/abs/1108.6312
Autor:
Niesen, Urs, Whiting, Phil
Publikováno v:
IEEE Transactions on Information Theory, vol. 58, pp. 5214 - 5232 , August 2012
We analyze the asymptotic behavior of compute-and-forward relay networks in the regime of high signal-to-noise ratios. We consider a section of such a network consisting of K transmitters and K relays. The aim of the relays is to reliably decode an i
Externí odkaz:
http://arxiv.org/abs/1101.2182
Publikováno v:
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 60, NO. 5, JUNE 2011
Traditional approaches in the analysis of downlink systems decouple the precoding and the channel estimation problems. However, in cellular systems with mobile users, these two problems are in fact tightly coupled. In this paper, this coupling is exp
Externí odkaz:
http://arxiv.org/abs/0812.0621
The downlink transmission in multi-user multiple-input multiple-output (MIMO) systems has been extensively studied from both communication-theoretic and information-theoretic perspectives. Most of these papers assume perfect/imperfect channel knowled
Externí odkaz:
http://arxiv.org/abs/0709.4513
Publikováno v:
Annals of Probability 2004, Vol. 32, No. 3B, 2765-2818
In the standard formulation of the occupancy problem one considers the distribution of r balls in n cells, with each ball assigned independently to a given cell with probability 1/n. Although closed form expressions can be given for the distribution
Externí odkaz:
http://arxiv.org/abs/math/0410174
Publikováno v:
Journal of Applied Probability, 2007 Mar 01. 44(1), 115-141.
Externí odkaz:
https://www.jstor.org/stable/27595826
Autor:
Morrison, John A., Whiting, Phil
Publikováno v:
SIAM Journal on Applied Mathematics, 2007 Jan 01. 67(6), 1610-1632.
Externí odkaz:
https://www.jstor.org/stable/40233463