Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
On the WiMAX robustness against interfering signals in emergency marine scenario
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Radio-aware scheduler for WiMAX systems based on time-utility function and game theory
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Experimental and simulation study of a WiMAX system in the sea port scenario
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
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The paper presents several experimental and simulation activities aimed at providing a proof-of-concept for a marine emergency network in which the main components are a WiMAX system and a satellite link. WiMAX represents quite a novelty for the marine environment and its integration with the satellite link turns out to be remarkably efficient and greatly contributes in improving the utility and usability of the emergency network. These concepts are proved through a series of tests and analysis. Firstly, we report an experimental analysis of the coverage range of the WiMAX system in the marine environment in terms of both RSSI and throughput. Then, we discuss the feasibility and performance of a joint WiMAX-satellite path (in terms of throughput and perceived quality of VoIP calls), and report an experimental study that verifies the robustness of the WiMAX links under the interference of typical marine equipments such as radars. Finally, we present a simulation study targeted at evaluating the maximal capacity of the system in terms of VoIP calls under different WiMAX system configurations.