Inspec keywords: convergence; computational complexity; stochastic programming; cognitive radio

Other keywords: time-varying radio environment scenario; relay determination; multihop transmission; data rate; spectrum efficiency improvement; fast convergence rate; outage capacity optimisation; low computation complexity; transmission mode selection; optimal transmission channel; cooperative communications; discrete stochastic optimisation algorithm; direct transmission; imperfect channel sensing situation; cognitive radio networks

Subjects: Radio links and equipment; Optimisation techniques