Performance of power detector sensors of DTV signals in IEEE 802.22 WRANs
TAPAS '06 Proceedings of the first international workshop on Technology and policy for accessing spectrum
Broadcast to Broadband: Unlicensed Access to Unused TV Channels?
IEEE Internet Computing
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The release of the TV White Space (TVWS) spectrum for portable devices by FCC opened up new opportunities for wireless applications. The propagation characteristics at TVWS band are far better than the 2.4 and/or 5GHz unlicensed bands and transceiver implementation is also relatively less expensive. All these advantages appear to make this available spectrum extremely attractive for wireless applications. However the spectrum also offers challenges especially to portable devices particularly related to interference avoidance, sensing, radio implementation and managing out-of-band (OOB) emissions. This paper presents an overview and challenges associated with the use of whitespace devices, particularly, power requirements as well as portable device and spectrum sensing issues.