QoS Routing Algorithm for Cognitive Radio Based on Channel Capacity and Interference
Qingwen Han, Mi Huang -, Tao Wang, Shumin Shang -, Lingqiu Zeng · International Journal of Digital Content Technology and its Applications · 2011
In this paper, a new QoS routing method for cognitive radio network is presented. Combining with the basic process of on-demand routing, we propose an appropriate routing algorithm which can meet the end-to-end QoS performance demanding. Difference from the existing conventional routing algorithms, the impact of two criterions: channel capacity and interference arising from intra-flow contention are took full account. Node in the cognitive radio network can select channels and switch between spectrums autonomously to meet capacity demand and avoid intra-flow contention. Simulation results show that the routing algorithm based the capacity and interference has better end-to-end QoS performance.