Dynamic parameter adjustment in a cognitive MAC protocol with transmission tax
Jelena Mišić, Vojislav B. Mišić · International Journal of Autonomous and Adaptive Communications Systems · 2011
Efficient operation of a cognitive personal area network (CPAN) may be achieved if each data transmission is taxed by requiring the transmitting node to participate in cooperative sensing for a prescribed time period.We investigate the data transmission performance of this approach, as well as its sensing accuracy, and discuss two modifications that involve centralised and distributed selection of the channels to be sensed.We also propose an adaptive algorithm to determine the tax coefficient and show that it offers superior data transmission performance whilst not affecting the sensing accuracy.