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Routing and Scheduling in Wireless Mesh Networks
49,00 € *
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Wireless Mesh Networking is envisioned as an economically viable paradigm and a promising technology in providing wireless broadband services. A key factor in designing protocols for a wireless mesh network (WMN) is to exploit its distinct characteristics, mainly immobility of mesh routers and less-constrained power consumption. In this work, we present a literature review of the work done on routing and scheduling in WMNs before. In addition, we study the effect of varying the transmission power to allow and maximize the number of simultaneously active transmissions in the network. We propose a QoS-aware routing framework using transmission power control. The framework addresses both link scheduling and QoS routing problems taking into consideration the spatial reuse of the network bandwidth. We formulate an optimization problem to find the optimal link schedule and use it as a fitness function in a genetic algorithm to find candidate routes. Using computer simulations, we show that by optimal power allocation the QoS constraints for the different traffic flows are met.

Anbieter: Dodax
Stand: 05.08.2020
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Terrestrial Trunked Radio - Tetra
210,90 CHF *
ggf. zzgl. Versand

Terrestrial Trunked Radio (TETRA) has become the tool to design any type of public security systems, in particular due to the strongly increased security demands for mobile systems. In this book, the authors show how TETRA can be strongly improved and these improvements will most probably be part of future TETRA standards. The areas examined include channel assignment and multiple access techniques, video transmission, wireless LAN integration, and the establishment of multiple wireless mesh networks. Since the requirements for these networks is security, the authors show that innovative techniques such as those based on chaotic signals can be used in order to maximize security. The book is a vital reference point for researchers with ambition to find the general solution for modern problems of public safety. TOC:Introduction.- Modern Security Requirements in Private Mobile Communications Systems.- TETRA Providing an Acceptable Security System Solution.- Channel Assignment and Multiple Access in Trunking Radio Systems.- Video Transmission over TETRA.- TETRA as a Gateway to Other Wireless Systems.- TETRA as a Building block to WMNs.

Anbieter: Orell Fuessli CH
Stand: 05.08.2020
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Terrestrial Trunked Radio - Tetra
171,19 € *
ggf. zzgl. Versand

Terrestrial Trunked Radio (TETRA) has become the tool to design any type of public security systems, in particular due to the strongly increased security demands for mobile systems. In this book, the authors show how TETRA can be strongly improved and these improvements will most probably be part of future TETRA standards. The areas examined include channel assignment and multiple access techniques, video transmission, wireless LAN integration, and the establishment of multiple wireless mesh networks. Since the requirements for these networks is security, the authors show that innovative techniques such as those based on chaotic signals can be used in order to maximize security. The book is a vital reference point for researchers with ambition to find the general solution for modern problems of public safety. TOC:Introduction.- Modern Security Requirements in Private Mobile Communications Systems.- TETRA Providing an Acceptable Security System Solution.- Channel Assignment and Multiple Access in Trunking Radio Systems.- Video Transmission over TETRA.- TETRA as a Gateway to Other Wireless Systems.- TETRA as a Building block to WMNs.

Anbieter: Thalia AT
Stand: 05.08.2020
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