Ali Ghiasian

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One of the most significant issues in wireless sensor networks is the limited source of energy that sensors are supplied with. Since network lifetime has a direct relationship with the energy of the nodes, it would be important to efficiently manage the energy consumption of the nodes. To this end, a number of energy aware routing algorithms have been(More)
Recently, we have proposed a new prefix lookup algorithm which would use the prefixes as scalar numbers. This algorithm could be applied to different tree structures such as Binary Search Tree and some other balanced trees like RB-tree, AVL-tree and B-tree with minor modifications in the search, insert and/or delete procedures to make them capable of(More)
In this paper, we study the link scheduling problem in wireless networks under M-hop interference model. In wireless networks, a scheduling algorithm is required to choose a subset of links at each time slot such that the packets do not corrupt due to interference. To deal with the interference in such a radio network different models have been introduced(More)
In single channel wireless networks, concurrent transmission at different links may interfere with each other. To improve system throughput, a scheduling algorithm is necessary to choose a subset of links at each time slot for data transmission. Throughput optimal link scheduling discipline in such a wireless network is generally an NPhard problem. In this(More)
BACKGROUND Fusarium species are capable of causing a wide range of crop plants infections as well as uncommon human infections. Many species of the genus produce mycotoxins, which are responsible for acute or chronic diseases in animals and humans. Identification of Fusaria to the species level is necessary for biological, epidemiological, pathological, and(More)
BACKGROUND AND PURPOSE The Fusarium species are among the most important fungi in the medical, veterinary and agricultural fields. MATERIALS AND METHODS In the present study, 172 strains of these fungi have been analyzed. The high molecular weight DNAs were extracted from 23 reference strains as well as from 149 isolated Fusarium species. Using the(More)
The energy efficiency of network hardware has become a topic of considerable interest in recent years, motivated by the explosive growth of information and communication technology (ICT), and the ever increasing energy costs as well as the need to reduce Greenhouse Gas (GHG) emissions globally. One approach to saving energy in routers is to use dynamic(More)
To design a link scheduling algorithm that can maximise the throughput region yet meet the average delay constraint is a challenging issue in wireless networks. In this paper we aim to analyse and improve the delay performance of the well-studied randomised link scheduling algorithms. To this end, we first introduce a novel concept, the average hitting(More)
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