2 results for “directional antennas”

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Research ArticleOpen accessIn the keywordsEnsuring Multi Messages Broadcasting in Mobile Ad Hoc Network using Network Coding ApproachS. V.M.G. Bavithiraja, R. RadhakrishnanProblem statement: In mobile adhoc network, broadcasting is a common operation for route establishment and for sending control and emergency messages. Most of the existing broadcasting algorithms consider broadcasting from single source node and consider only single message broadcasting. Initiating multiple messages broadcasting from multiple sources is a challenging task which requires minimum number of retransmission made by the forwarding … …Journal of Computer Science, Vol. 8, Issue 6 · 17 Mar 2012 · 7,055 accessesView PDF Cite

Research ArticleOpen accessIn the abstractErgodic Capacity Analysis of Multiple Input Multiple Output Systems with Dual Hop Amplify and Forward Relay NetworksC. Poongodi, A. ShanmugamProblem Statement: In MIMO system, capacity mainly depends on the channel and the antenna characteristics. The capacity can be improved by proper design of antenna elements and choosing appropriate array configuration and the directive elements give more capacity than omni directional elements. The dual polarized antennas are better than single polarized antennas as the former can provide two information channels. … …Journal of Computer Science, Vol. 7, Issue 12 · 17 Oct 2011 · 6,739 accessesView PDF Cite