Research Article
Coverage Performance in Cognitive Radio Networks with Self-sustained Secondary Transmitters
@INPROCEEDINGS{10.1007/978-3-319-72823-0_17, author={Xiaoshi Song and Xiangbo Meng and Yuting Geng and Ning Ye and Jun Liu}, title={Coverage Performance in Cognitive Radio Networks with Self-sustained Secondary Transmitters}, proceedings={5G for Future Wireless Networks. First International Conference, 5GWN 2017, Beijing, China, April 21-23, 2017, Proceedings}, proceedings_a={5GWN}, year={2018}, month={1}, keywords={Cognitive radio network Energy harvesting Opportunistic spectrum access Stochastic geometry Transmission probabilty Coverage probability Spatial throughput}, doi={10.1007/978-3-319-72823-0_17} }- Xiaoshi Song
Xiangbo Meng
Yuting Geng
Ning Ye
Jun Liu
Year: 2018
Coverage Performance in Cognitive Radio Networks with Self-sustained Secondary Transmitters
5GWN
Springer
DOI: 10.1007/978-3-319-72823-0_17
Abstract
In this paper, we investigate the opportunistic spectrum access (OSA) of self-sustained secondary transmitters (STs) in cognitive radio (CR) network to improve both the spectral efficiency and energy efficiency. Particularly, by utilizing energy harvesting, the STs are assumed to be able to collect and store ambient powers for data transmission. An energy harvesting based OSA protocol, namely the EH-PRA protocol, is considered, under which a ST is eventually allowed to launch the transmission only if its battery level is larger than the transmit power and the estimated interference perceived at the active primary receivers (PRs) is lower than a threshold . Given that the battery capacity of STs is infinite, we derive the transmission probability of STs. We then characterize the coverage performance of the CR network. Finally, simulation results are provided for the validation of our analysis.