Cooperative interference alignment in femtocell networks

Francesco Pantisano, Mehdi Bennis, Walid Saad, Mérouane Debbah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

30 Citations (Scopus)

Abstract

Underlay femtocells have recently emerged as a key technology that can significantly improve the coverage and performance of next- generation wireless networks. In this paper, we propose a novel approach for interference management that enables a number of femtocells to cooperate and improve their downlink rate, by sharing spectral resources and suppressing intra-tier interference using interference alignment. We formulate a coalitional game in partition form among the femtocells and propose a distributed algorithm for coalition formation. Using our approach, the femtocell access points can make individual decisions on whether to cooperate or not, while maximizing a utility function that captures the cooperative gains and the costs in terms of transmit power for information exchange. We show that, using the proposed coalition formation algorithm, the femtocells can self-organize into a network partition composed of disjoint femtocell coalitions, which constitutes the recursive core of the game. Simulation results show significant gains in terms of average payoff per femtocell, reaching up to 30% relative to the non-cooperative scheme.

Original languageEnglish
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
DOIs
StatePublished - Dec 1 2011
Event54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, United States
Duration: Dec 5 2011Dec 9 2011

Other

Other54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
CountryUnited States
CityHouston, TX
Period12/5/1112/9/11

Fingerprint

Femtocell
Parallel algorithms
Wireless networks

Keywords

  • coalitional games
  • femtocell networks
  • game theory
  • interference alignment
  • partition form
  • recursive core

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Pantisano, F., Bennis, M., Saad, W., & Debbah, M. (2011). Cooperative interference alignment in femtocell networks. In GLOBECOM - IEEE Global Telecommunications Conference [6133906] https://doi.org/10.1109/GLOCOM.2011.6133906

Cooperative interference alignment in femtocell networks. / Pantisano, Francesco; Bennis, Mehdi; Saad, Walid; Debbah, Mérouane.

GLOBECOM - IEEE Global Telecommunications Conference. 2011. 6133906.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pantisano, F, Bennis, M, Saad, W & Debbah, M 2011, Cooperative interference alignment in femtocell networks. in GLOBECOM - IEEE Global Telecommunications Conference., 6133906, 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011, Houston, TX, United States, 12/5/11. https://doi.org/10.1109/GLOCOM.2011.6133906
Pantisano F, Bennis M, Saad W, Debbah M. Cooperative interference alignment in femtocell networks. In GLOBECOM - IEEE Global Telecommunications Conference. 2011. 6133906 https://doi.org/10.1109/GLOCOM.2011.6133906
Pantisano, Francesco ; Bennis, Mehdi ; Saad, Walid ; Debbah, Mérouane. / Cooperative interference alignment in femtocell networks. GLOBECOM - IEEE Global Telecommunications Conference. 2011.
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