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—In this paper, we evaluate through analytical mod-eling, the performance of ad hoc networks when the nodes are endowed with M-element antenna array. We first derive the loss probability due to fading when performing a simple beamforming strategy and we present an accurate analytical model for the performance of IEEE 802.11 MAC protocol. We then extend the(More)
— In this paper we evaluate the channel load on the total ad hoc network performance when using the beamformed MAC protocol: BMAC [1]. Carefully exploitation of the multipath channel using smart antennas can lead to improve the capacity and the quality in MANET (Mobile Adhoc NETwork). In BMAC the channel-acquisition sub algorithm, maintains an estimated(More)
Recommended by Shuguang Cui Precoding problem in multiple-input multiple-output (MIMO) ad hoc networks is addressed in this work. Firstly, we consider the problem of maximizing the system mutual information under a power constraint. In this context, we give a brief overview of the nonlinear optimization methods, and systematically we compare their(More)
—Maximizing the system mutual information for MIMO ad hoc networks is considered in this paper. We first give a brief overview of the non-linear optimization methods and systematically we compare their performances. Then we propose a fast and distributed algorithm based on the quasi Newton methods to give a lower bound of the system capacity of MIMO ad hoc(More)
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