[Tccc] A position for a PhD student at LIA and INRIA Sophia Antipolis

Elazouzi Rachid rachid.elazouzi
Thu Jul 26 17:49:10 EDT 2012


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

?

  

References

[Br99] P. Br?maud, 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, ? Self-Optimized Precoding and Power Control in Cellular 
Networks ? PIMRC 2011 - IEEE International Symposium on Personal, Indoor 
and Mobile RadioCommunications, Toronto : Canada (2011)"


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







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