Slim Ben Halima

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In this paper, we propose three joint clustering and scheduling schemes for overloaded femtocell network based on interference alignment. The schemes try to reach a tradeoff between the system sum-capacity and the fairness between the users. Considering different path loss configurations, the performance of the different schemes in terms of system(More)
In this paper, we propose a low complexity clustering algorithm for an overloaded MIMO interference channel. The algorithm is based on distributed interference alignment techniques. Starting from a small number of iterations in the iterative interference alignment process, the algorithm chooses the group of links that maximizes the chordal distance between(More)
Exploiting multi-user diversity is one solution to efficiently use the wireless medium. The basic principle is to assign the resources to the user experiencing the best channel conditions based on a feedback information provided by different users. In this paper, we propose three multiuser scheduling schemes which are combinations between the switch and(More)
Closed loop adaptive modulation systems rely on a feedback channel to receive channel state information from the users and set according to it the appropriate modulation index. In [1] three joint adaptive modulation and combining scheduling schemes are suggested to manage the wireless resource between many users in a multiuser diversity environment. The(More)
This paper deals with the design of pre-coding and decorrelation matrices in the constant MIMO interference channel. First, we propose a distributed algorithm that enables all the streams of the links in the network to reach a set of target signal to interference plus noise ratios (SINRs). Depending on the chosen SINR targets, it is shown that the algorithm(More)
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