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Dense Heterogeneous Networks (HetNets) can improve the capacity and spectrum efficiency of communication system. However, dense HetNets greatly complicate the handover decision, due to the small-coverage cells. The small-coverage cells result in high handover probability, which increases the probability of radio link failure. Moreover, it's significant to save energy of transmit power consumption...
Based on the principle of double-half-revolution mechanism, this paper designed a new-style bionic walking mechanism by using two tandem planetary gear trains, which is composed of one first swiveling arm, one second swiveling arm, two striding rods and mechanism bracket, etc. The first swiveling arm and second swiveling arm are the planet carriers (also as gearbox casings) of the planetary gear trains...
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