Performance issues in next generation wireless multimedia networks.
Item
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Title
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Performance issues in next generation wireless multimedia networks.
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Identifier
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AAI3115271
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identifier
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3115271
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Creator
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Malczanek, Anthony.
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Contributor
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Adviser: Syed V. Ahamed
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Date
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2004
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Language
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English
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Publisher
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City University of New York.
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Subject
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Computer Science
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Abstract
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Today, the need for increased mobility puts an additional emphasis on wireless communications. Wireless technologies bring several obvious advantages in our everyday activity, like: mobility, scalability, ease of installation, reliability, affordability. The ubiquitous use of wireless communications will represent an important step ahead toward the final goal of communications: the delivery of any amount of information, anywhere, anytime to anyone is entitled to.;This thesis has two distinctive parts: (1) In the first part I make a presentation of the main steps in the evolution of wireless communications. Both wireless telecommunications and data communications are analyzed. A particular emphasis is put on the merge of the 3 types of wireless communications and the emerging multiservice networks. (2) In the second part of the thesis I modeled and simulated different types of wireless multiservice networks, using OPNET simulation software and I explored the performance of these type of networks.;I modeled three types of wireless multriservice networks: ad-hoc, infrastructure, and wireline routed networks. As multimedia communication, digitized and packetized voice is generated.;The study gives answers specific questions for wireless multimedia communications, like: (1) as physical layer, is Direct Sequencing or Frequency Hopping more suitable; (2) as voice codec, is G.711 or G.729 more suitable; (3) what is the maximum number of wireless users the wireless network can accept without degrading the quality of voice transmission; (4) what technologies and in what degree, can solve quality of service in a wireless multimedia network.;The research can be continued with new challenges like: (1) measuring the impact of different combinations of data transport over voice transport; (2) studying the impact of new multimedia applications like digitized and packetized video transmission, over wireless networks.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
