Fodor Gábor

Are you Fodor Gábor?

Claim your profile

Publications (2)0 Total impact

  • Source
    Article: Intercell Interference Coordination in OFDMA Networks and in the 3GPP Long Term Evolution System
    Fodor Gábor, Koutsimanis Chrysostomos, Rácz András, Reider Norbert, Simonsson Arne, Müller Walter
    [show abstract] [hide abstract]
    ABSTRACT: Intercell interference coordination (ICIC) in orthogonal frequency division multiple access (OFDMA) networks in general and in the 3GPP Long Term Evolution system in particular has received much attention both from the academia and the standardization communities. Understanding the trade-offs associated with ICIC mechanisms is important, because it helps identify the architecture and protocol support that allows practical systems to realize potential performance gains. In this paper we review some of the recent advances in ICIC research and discuss the assumptions, advantages and limitations of some of the proposed mechanisms. We then proceed to describe the architecture and protocol support for ICIC in the 3GPP LTE system. We make the point that the 3GPP standard is formed in a flexible way such that network operators can employ the most suitable ICIC mechanism tailored to their actual deployment scenario, traffic situation and preferred performance target.
    Journal of Communications. 01/2009;
  • Source
    Article: On the Tradeoff Between Blocking and Dropping Probabilities in Multi-cell CDMA Networks
    Fodor Gábor, Telek Miklós
    [show abstract] [hide abstract]
    ABSTRACT: This paper is a sequel of previous work, in which we proposed a model and computational technique to calculate the Erlang capacity of a single CDMA cell that supports elastic services. The present paper extends that base model by taking into account two important aspects of CDMA. First, we describe a simple and a refined multicell CDMA model that are able to capture the impact of the neighbor cells on important performance measures of the cell under study. These performance measures include the class-wise blocking probabilities and the mean time that elastic sessions spend in the system. Secondly, we model the impact of the outage by taking into account that in progress sessions can be dropped with a probability that depends on the current load in the serving and neighbor cells. We then consider a system with elastic and rigid service classes and analyze the trade-off between the total (soft and hard) blocking probabilities on the one hand and the throughput and the session drop probabilities on the other.
    Journal of Communications. 01/2007;
Browse more researchers