Yanli Ji1, *, Weidong Wang2, Yinghai Zhang2
CMES-Computer Modeling in Engineering & Sciences, Vol.122, No.2, pp. 691-701, 2020, DOI:10.32604/cmes.2020.07861
Abstract In view of the uncertainty of the status of primary users in cognitive networks
and the fact that the random detection strategy cannot guarantee cognitive users to
accurately find available channels, this paper proposes a joint random detection strategy
using the idle cognitive users in cognitive wireless networks. After adding idle cognitive
users for detection, the compressed sensing model is employed to describe the number of
available channels obtained by the cognitive base station to derive the detection
performance of the cognitive network at this time. Both theoretical analysis and
simulation results show that using idle cognitive users can reduce… More >
Login
Register
