Date Added: Apr 2011
Throughput maximization is one of the core challenges in Cognitive Radio Ad hoc Networks (CRANs), where local spectrum resources are changing over time and locations. This paper proposes a Spectrum and Energy aware Routing (SER) protocol for CRANs, which involves route selection and channel timeslot assignment jointly. The proposed routing scheme with channel-timeslot assignment can balance the energy consumption, eliminate contention between users, and decompose contending traffic over different channels and timeslots. As a result, the proposed scheme leads to significant increases in network throughput and decreases the end-to-end delay.