A Parallel, Multi-Resolution Sensing Technique for Multiple Antenna Cognitive Radios | Zendy

Nathan M. Neihart | Zendy; Sumit Roy | Zendy; David J. Allstot | Zendy

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A Parallel, Multi-Resolution Sensing Technique for Multiple Antenna Cognitive Radios

Author(s) -

Nathan M. Neihart,

Sumit Roy,

David J. Allstot

Publication year - 2007

Publication title -

2007 ieee international symposium on circuits and systems (iscas)

Language(s) - English

Resource type - Conference proceedings

eISSN - 2158-1525

pISSN - 0271-4302

DOI - 10.1109/iscas.2007.378754

Subject(s) - components, circuits, devices and systems , communication, networking and broadcast technologies , engineered materials, dielectrics and plasmas

A parallel, multi-resolution spectrum sensing technique that is amenable to multiple-antenna cognitive radios is introduced. We show that for energy-detector-type spectrum sensors, the total sensing time due to FFT latency is reduced by 100 times using the proposed method versus the fixed-resolution, serial detection method employed in single-antenna systems. System-level tradeoffs such as the number of antennas, sensing bandwidth, and FFT size are also explored.

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