Most of routing protocols are optimized only for shortest delay or energy efficiency, however, in practical applications, not all types of upper layer application are required to the shortest delay, but require a compromise between time-delay and energy-efficient. When need to the shortest delay routing protocol parameters can be adjusted to achieve the delay shortest purpose. For general applications, they can also be made through compromise to achieve purpose of energy saving. That is, the delay performance of the routing algorithm is reconfigurable. In this paper, a novel flexible delay and energy-efficient cognitive radio routing protocols is proposed.
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