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This paper presents and analyzes the results of medium range propagation channel measurements with and without the presence of a reflecting obstacle at 60 GHz. Root-Mean-Square (RMS) delay spread, path loss and signal intensity are investigated. A strong relationship is found between the use of a reflector and the received signal strength. An RMS delay spread is established to help identify a possibility...
In this paper, we propose a novel channel selection algorithm for a cognitive radio system that coexists with legacy wireless LAN systems operating in the ISM bands. The cognitive system is capable of scanning its environment to measure ISM channel occupancy in terms of WLAN channel utilization. The system takes the opportunity of spectrum availability to facilitate its communication to the cognitive...
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