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List:       tccc
Subject:    [Tccc] A position for a PhD student at LIA and INRIA Sophia Antipolis
From:       Elazouzi Rachid <rachid.elazouzi () univ-avignon ! fr>
Date:       2012-07-26 21:49:10
Message-ID: 5011BB56.1020509 () univ-avignon ! fr
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Bonjour,


Please find below a subject for a PhD in LIA (university of Avignon), =

Alcatel Lucent and INRIA, France, in wireless communication

Best regards
Rachid Elazouzi


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Titre : Exploring Gibbs sampling techniques for mobility in Macro/Small =

cells



Subject :

The need for bandwidth and the incitations to reduce power consumption =

leads to the reduction of cells' size in cellular networks. This allows =

reducing the distance between mobile and base station thus increasing =

the capacity. This reduction implies problems for cells organization and =

network deployment, especially due to the cells interference. Moreover, =

the evolution of next generation radio access networks such as LTE, =

LTE-advanced, is characterized by an increasingly distributed =

architecture (also denoted as flat architecture). This allows reducing =

the network complexity, the delays, and the signalling load. In a flat =

architecture network, many Radio Resource Management (RRM) functions are =

located within the base stations. Examples are mobility management, =

packet scheduling and different resource allocation functionalities =

(e.g. transmission powers etc.). A similar trend is expected in =

Self-Organizing Network (SON) entities, such as mobility optimization, =

interference management etc. It is recalled that in 2G and 3G networks, =

a more centralized operation of resource management is used. For =

example, in UMTS 3G networks, mobility management is performed in the =

Radio Network Controller (RNC) to which a large number on Node Bs are =

connected.

The objective of this thesis is to develop the algorithms and solutions =

required to allow Small Cells Network (SCN) deployment. This thesiswill =

explore the Gibbs Sampling techniques in order to propose different =

architectures allowing the Gibbs sampler algorithms to obtain an optimal =

resource allocation in a distributed manner and in different scenarios. =

In this thesis, we will exploit the Gibbs sampling for several scenarios

=B7

  =


References

[Br99] P. Br=E9maud, Markov Chains: Gibbs Fields, Monte Carlo Simulation, =

and Queues. Springer Verlag, 1999.

[Chen10] C. S. Chen and F. Baccelli, "Self-optimization in mobile =

cellular networks: power control and user association," in Proc. IEEE =

ICC, 2010, pp. 1--6.

[Kauf07] B. Kauffmann,F.Baccelli,A.Chaintreau,V.Mharte,K.Papagiannaki,C. =

Diot (2007). Measurement-based self organization of interfering 802.11 =

wireless access networks. In: Proceedings of the 26th IEEE Infocom =

Conference, Anchorage, AK, USA

[Borst] Sem Borst, Mihalis Markakis, and Iraj Saniee, "Distributed Power =

Allocation and User Assignment in OFDMA Cellular Networks", IEEE, 49^th =

Annual Allerton Conference on Communication Control and =

ComputingAllerton (2011)

[ChBaRo11] Chung Shue Chen, Francois Baccelli, Laurent Roullet "Joint =

Optimization of Radio Resources in Small and Macro Cell =

Networks"Vehicular Technology, IEEE Conference - VTC -Spring , pp. 1-5, 2011

[Gar11] Virgile Garcia1, Chung Shue Chen, Nikolai Lebedev, Jean-Marie =

Gorce, =AB Self-Optimized Precoding and Power Control in Cellular =

Networks =BB PIMRC 2011 - IEEE International Symposium on Personal, Indoor =

and Mobile RadioCommunications, Toronto : Canada (2011)"


Contact
Rachid Elzaouzi  email rachid.elazouzi@univ-avignon.fr
Eitan Altman email eitan.altman@inria.fr
Tania Jimenez  email Tania.jimenez@univ-avignon.fr




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