Mojtaba Kaveh

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In the present research, a two-echelon location-routing problem with constraints of vehicle fleet capacity and maximum route length is considered. The problem’s objective is to determine the location and number of two types of capacitated facilities, the size of two different vehicle fleets, and the related routes on each echelon. Two algorithms hybrid(More)
Consider a fixed wireless TDMA system with nonregenerative relaying capabilities. Since TDMA users are active only during their allocated time slot, we can utilize all the idled users as relays provided that they transmit on different frequency bands. For this TDMA-type cooperative system we show that maximizing mutual information for each user under total(More)
In the present paper, the dynamic facilities layout problem is studied in presence of ambiguity of information flow. Product demand (and consequently material flow) is defined as fuzzy numbers with different membership functions. The problem is modeled in fuzzy programming. Three models of expected value, chance-constrained programming and dependent-chance(More)
We propose a distributed space-time coding (DSTC) systems based on the Alamouti design. We discuss the limitations in the relay channel of the "out of the box" Alamouti scheme and the additional complexity required to overcome its loss of diversity. Using a bit error rate based antenna selection approach, we design DSTC systems with one regenerative relay(More)
We investigate the rate maximizing power allocation strategy for a system where the source and the decode-and-forward (DF) relays cooperate by utilizing a distributed space-time block coding strategy. Under the assumption that all transmitters have perfect knowledge of the link gains, we analyze two limit cases - the case of no-collaboration among relays(More)
Gene function prediction and gene clustering using biological information, including genome sequence, gene expression data, protein interaction data, phylogenetic data, etc., is an important step toward the inference of the gene regulatory network in the cell. Different types of data reveal different aspects of the relationships among the genes within a(More)
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