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- Saleh Yousefi, Eitan Altman, Rachid El Azouzi, Mahmood Fathy
- IEEE Trans. Vehicular Technology
- 2008

We investigate connectivity in the ad hoc network formed between vehicles that move on a typical highway. We use the common model in vehicular traffic theory in which a fixed point on the highway sees cars passing it separated by times with exponentially distributed duration. We obtain the distribution of the distances between cars, which allows us to use… (More)

- Eitan Altman, Rachid El Azouzi, Tania Jiménez
- Computer Networks
- 2004

This paper studies distributed choice of retransmission probabilities in slotted ALOHA. Both the cooperative team problem as well as the noncooperative game problem are considered. Unlike some previous work, we assume that mobiles do not know the number of backlogged packets at other nodes. A Markov chain analysis is used to obtain optimal and equilibrium… (More)

- Dhiman Barman, Ibrahim Matta, Eitan Altman, Rachid El Azouzi
- WWIC
- 2004

TCP performance degrades when end-to-end connections extend over wireless connections — links which are characterized by high bit error rate and intermittent connectivity. Such link characteristics can significantly degrade TCP performance as the TCP sender assumes wireless losses to be congestion losses resulting in unnecessary congestion control actions.… (More)

—We consider the situation where N nodes share a common access point. With each node i there is an associated buffer and channel state that change in time. Node i dynamically chooses both the power and the admission control to be adopted so as to maximize the expected throughput, which depends on the actions and states of all the players, given its power… (More)

- Saleh Yousefi, Eitan Altman, Rachid El Azouzi, Mahmood Fathy
- Computer Communications
- 2008

Connectivity in vehicular ad hoc networks may degrade dramatically in sparse traffic and also high speed highways. In this paper we study a way to improve the connectivity by adding some extra nodes with higher transmission range which we call mobile base-stations. These nodes can also offer commercial services (e.g. advertisement, video, audio, etc.) to… (More)

- Yuedong Xu, Eitan Altman, Rachid El Azouzi, Salah-Eddine Elayoubi, Majed Haddad
- Networking
- 2012

The purpose of this paper is to model quality of experience (QoE) of media streaming service in a shared fast-fading channel. In this context, the arrival and the service processes of the playout buffer do not have the same job size. We present an analytical framework based on Takács Ballot theorem to compute the probability of buffer starvation and the… (More)

- Rachid El Azouzi, Thierry Peyre, Abderrahim Benslimane
- WMuNeP
- 2006

Multimedia data transmission over wireless networks often suffers from delay, jitter and packet loss. The main problem to implement a wireless network is the high and variable bit error rate in the radio link, making it necessary to use an additional error control mechanism. The traditional techniques for error control are ARQ (Automatic Repeat Request) and… (More)

- Hamidou Tembine, Eitan Altman, Rachid El Azouzi, Yezekael Hayel
- IEEE Trans. Systems, Man, and Cybernetics, Part B
- 2010

We consider a noncooperative interaction among a large population of mobiles that interfere with each other through many local interactions. The first objective of this paper is to extend the evolutionary game framework to allow an arbitrary number of mobiles that are involved in a local interaction. We allow for interactions between mobiles that are not… (More)

- R. El Azouzi, L. Wyntery
- 2003

We present a competitive model that describes the interaction between several competing telecommunications service providers (SPs), their subscribers, and a network owner. Competition between the service providers is assumed to take place in their pricing decisions as well as in terms of the quality of service (QoS) they offer. In turn, the subscribers'… (More)

- Hamidou Tembine, Jean-Yves Le Boudec, Rachid El Azouzi, Eitan Altman
- 2009 International Conference on Game Theory for…
- 2009

We introduce Markov Decision Evolutionary Games with N players, in which each individual in a large population interacts with other randomly selected players. The states and actions of each player in an interaction together determine the instantaneous payoff for all involved players. They also determine the transition probabilities to move to the next… (More)