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288 articles for “Mobile Network”
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Research ArticleOpen accessIn the abstractThe Impact of Radio Propagation Models on Ad Hoc Networks PerformancesA. Rhattoy, A. ZatniProblem statement: Wireless networks are characterized by a dynamic topology triggered by the nodes mobility. Thus, the wireless multi-hops connection and the channel do not have determinist behaviour such as: Interference or multiple paths. Moreover, the nodes’ invisibility makes the wireless channel difficult to detect. This wireless networks’ behaviour should be scrutinized. Approach: In our study, we mainly focus on … …Journal of Computer Science, Vol. 8, Issue 5 · 2 Mar 2012 · 6,848 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance of Improved Directed Diffusion Protocol for Sensor Networks under Different Mobility ModelsK. E. Kannammal, T. PurusothamanProblem statement: In sensor networks, some routing protocols performance differs under different mobility models. In ns2, there are two kinds of directed diffusion protocols, rate based gradient mechanism (diffusion/rate) and probability based gradient mechanism (diffusion/prob). In this research, we proposed a method to improve the performance of Directed diffusion/prob protocol by adding a new interest message propagation mechanism and analyzed … …Journal of Computer Science, Vol. 8, Issue 5 · 25 Feb 2012 · 6,749 accessesView PDFCite
Research ArticleOpen accessIn the abstractWeighted Centroid Correction Localization in Cellular SystemsRong-Zheng Li, Xin-Long Luo, Jia-Ru LinProblem statement: There is a large demand for wireless Location-Based Service (LBS) and it is provided by many wireless cellular systems. In process of positioning a Mobile Station (MS), the computing speed is as important as the positioning accuracy and the algorithm should also be resistant to environmental influences. Approach: A new positioning method based on Weighted Centroid Correction Localization … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 27 Jan 2011 · 8,974 accessesView PDFCite
Research ArticleOpen accessIn the abstractModel Development of Isan Country Song Compositions for Economic, Social and Cultural Value-AddedNipinth Suwanrong, Khaentaphon Samdaengdech, Thaksina KrairachProblem statement: Country Song was related to history, society, culture and economic. The objectives of this study were: (1) the historical background in composing the Isan Country Song, (2) the current situation and problem of composing style of Isan Country Song and (3) the development of composing pattern the Isan Country Song for elevating the economic value. Approach: The research … …Journal of Social Sciences, Vol. 6, Issue 3 · 30 Sep 2010 · 7,668 accessesView PDFCite
Research ArticleOpen accessIn the abstractLoad Balancing of Distributed Systems Based on Multiple Ant Colonies OptimizationAl-Dahoud Ali, Mohamed A. Belal, Moh’d Belal Al-ZoubiProblem statement: Ant Colony Optimization (ACO) provides a meta-heuristic optimization tool and collective intelligence model to several applications such as routing and load balancing. A lot of work found in the literature on using ACO in load balancing. However, as far as our knowledge, there was no work relating load balancing in distributed systems with ACO. Approach: In this study, … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,209 accessesView PDFCite
Research ArticleOpen accessIn the abstractArabic Short Text CompressionIman Omer, Khalaf KhatatnehProblem statement: Text compression permits representing a document by using less space. This is useful not only to save disk space, but more importantly, to save disk transfer and network transmission time. With the continues increase in the number of Arabic short text messages sent by mobile phones, the use of a suitable compression scheme would allow users to use … …Journal of Computer Science, Vol. 6, Issue 1 · 31 Jan 2010 · 7,542 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Comparison of Two On-demand Routing Protocols for Ad-hoc Networks based on Random Way Point Mobility ModelGeetha Jayakumar, G. GopinathAd hoc networks are characterized by multihop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols plays an important role. We compare the performance of two prominent on-demand routing protocols for mobile ad hoc networks: Dynamic Source Routing (DSR), Ad Hoc On-demand distance Vector Routing (AODV). A detailed simulation model with MAC and physical layer … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 7,692 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeterogeneous GPRS-WLAN Integration Based on Ad-Hoc NetworksS. LouvrosIn heterogeneous microcellular networks like 802.11(WLAN)-GPRS, users can roam around through vertical handoffs. The major problem in heterogeneous networks is that they support different QoS requirements and the users suffer sudden changes in data rates. This study proposes certain routing algorithms to extend the service time of mobile handsets in the wireless network with higher available data rate, thus improving … …Journal of Computer Science, Vol. 4, Issue 2 · 28 Feb 2008 · 6,538 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of IP Video Streaming Software to Identify Availability and AudienceVitor Chaves de Oliveira, Sérgio Bimbi Junior, Andreiwid Sheffer Corrêa et al.The perpetual rise of the video on demand is currently one of the leading challenges the telecommunications industry faces. It per passes the eternal comparison with a service that continuously set’s the bar at a highly elevated consumer quality. And the user, advertiser and all stakeholders involved not only are used to it, but demand equal and/or similar value, i.e., … …Journal of Computer Science, Vol. 14, Issue 7 · 11 Jun 2018 · 8,595 accessesView PDFCite
Literature ReviewOpen accessIn the abstractObject Tracking in Wireless Sensor Networks: Challenges and SolutionsShereen Ismail, Eman Alkhader, Said ElnaffarWireless Sensor Networks (WSNs) are small, inexpensive and battery-operated sensor nodes that are deployed over a geographical area. WSNs are used in many applications such border patrolling, military intrusion detection, wildlife animal monitoring, surveillance of natural disasters and healthcare systems. Mobile object tracking is a vital task in all these applications. The goal of this work is to highlight the … …Journal of Computer Science, Vol. 12, Issue 4 · 1 May 2016 · 7,777 accessesView PDFCite