Practical implementation of blind synchronization in NC-OFDM based cognitive radio networks

Aveek Dutta, Dola Saha, Dirk Grunwald, Douglas Sicker
2010 Proceedings of the 2010 ACM workshop on Cognitive radio networks - CoRoNet '10  
Spectrum Pooling has lead the cognitive radio research community to a new frontier where it is imperative to examine the architectures of wireless network protocols as well as the underlying hardware. Challenges at the physical layer (PHY) have increased the complexity of the algorithms used in processing a signal with multifarious properties. Synchronization of Non-Contiguous Orthogonal Frequency Division Multiplexing (NC-OFDM) is one such example where a clean slate algorithm and
more » ... n is of utmost need. In this paper, we present a novel algorithm to perform NC-OFDM synchronization in the presence of an incumbent and also provide an outline for a FPGA based implementation of the proposed synchronizer. Extensive simulations under varying signalto-noise ratio (SNR) and bandwidth reveal significant improvement over existing algorithms employed for NC-OFDM synchronization in cognitive radios.
doi:10.1145/1859955.1859957 dblp:conf/mobicom/DuttaSGS10 fatcat:ud7c5kk44vbc7b4latn6bjrah4