Self-organizing interference management for LTE

Francis Dominique, Christian G. Gerlach, Nandu Gopalakrishnan, Anil Rao, James P. Seymour, Robert Soni, Aleksandr Stolyar, Harish Viswanathan, Carl Weaver, Andreas Weber

Research output: Contribution to journalArticlepeer-review


In orthogonal frequency division multiple access (OFDMA) systems such as Long Term Evolution (LTE), it is extremely important to reduce interference between neighboring cells, especially for cell edge users, since the only interference in LTE is inter-cell interference due to the orthogonality of the sub-carriers used in the transmissions. This paper describes a few self-organizing and self-optimizing techniques to manage and reduce this inter-cell interference. These self-optimizing network (SON)-based techniques are inter-cell interference coordination (ICIC) and uplink (UL) interference over thermal (IoT) control. Simulation results are presented showing the improvements that can be obtained with the use of such techniques in interference limited operating scenarios.

Original languageEnglish (US)
Pages (from-to)19-42
Number of pages24
JournalBell Labs Technical Journal
Issue number3
StatePublished - Dec 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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