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Cooperative Retransmission Protocols In Fading Channels : Issues, Solutions And Applications, Igor Stanojev
Cooperative Retransmission Protocols In Fading Channels : Issues, Solutions And Applications, Igor Stanojev
Dissertations
Future wireless systems are expected to extensively rely on cooperation between terminals, mimicking MIMO scenarios when terminal dimensions limit implementation of multiple antenna technology. On this line, cooperative retransmission protocols are considered as particularly promising technology due to their opportunistic and flexible exploitation of both spatial and time diversity. In this dissertation, some of the major issues that hinder the practical implementation of this technology are identified and pertaining solutions are proposed and analyzed. Potentials of cooperative and cooperative retransmission protocols for a practical implementation of dynamic spectrum access paradigm are also recognized and investigated. Detailed contributions follow.
While conventionally …
Energy Efficient Organization And Modeling Of Wireless Sensor Networks, Jin Zhu
Energy Efficient Organization And Modeling Of Wireless Sensor Networks, Jin Zhu
Dissertations
With their focus on applications requiring tight coupling with the physical world, as opposed to the personal communication focus of conventional wireless networks, wireless sensor networks pose significantly different design, implementation and deployment challenges. Wireless sensor networks can be used for environmental parameter monitoring, boundary surveillance, target detection and classification, and the facilitation of the decision making process. Multiple sensors provide better monitoring capabilities about parameters that present both spatial and temporal variances, and can deliver valuable inferences about the physical world to the end user.
In this dissertation, the problem of the energy efficient organization and modeling of dynamic …