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In this paper we present a time divisional and a time-frequency divisional cooperative spectrum sensing technique suitable for cognitive radio (CR) networks. The two methods are well suited for very high bandwidth CR networks, such as UWB networks, where the individual nodes need to scan a wide range of spectrum which is a time consuming process. With the time divisional and the time-frequency divisional...
With an increasing number of collocated personal, local and cellular wireless communication systems, the question of optimum coexistence and inter-networking are raised. Although some mitigation techniques, like DAA, LDC, Frequency band notching etc. are being widely studied by industries, regulation bodies and standardization authorities, none of them show good performance in terms of detection and...
The interference produced by WiMAX mobile wireless transmissions operating in the 3.5 GHz band on a WiMedia-defined ultra-wideband (UWB) wireless link is experimentally analyzed in this paper. The investigation includes standard IEEE 802.16e WiMAX, and ECMA-368 UWB equipment as defined by the WiMedia alliance. A conventional meeting room scenario has been considered for the measurements. The experimental...
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