Research Article
On the Effective Capacity of Delay Constrained Cognitive Radio Networks with Relaying Capability
@INPROCEEDINGS{10.1007/978-3-319-24540-9_64, author={Ahmed Anwar and Karim Seddik and Tamer ElBatt and Ahmed Zahran}, title={On the Effective Capacity of Delay Constrained Cognitive Radio Networks with Relaying Capability}, proceedings={Cognitive Radio Oriented Wireless Networks. 10th International Conference, CROWNCOM 2015, Doha, Qatar, April 21--23, 2015, Revised Selected Papers}, proceedings_a={CROWNCOM}, year={2015}, month={10}, keywords={}, doi={10.1007/978-3-319-24540-9_64} }- Ahmed Anwar
Karim Seddik
Tamer ElBatt
Ahmed Zahran
Year: 2015
On the Effective Capacity of Delay Constrained Cognitive Radio Networks with Relaying Capability
CROWNCOM
Springer
DOI: 10.1007/978-3-319-24540-9_64
Abstract
In this paper we analyze the performance of a secondary link in a cognitive radio relaying system operating under a statistical quality of service (QoS) delay constraint. In particular, we quantify analytically the Effective Capacity improvement for the secondary user when it offers a packet relaying service to the primary user packets that are lost under the SINR interference model. Towards this objective, we utilize the concept of Effective Capacity introduced earlier in the literature as a metric to quantify the wireless link throughput under statistical QoS delay constraints, in an attempt to support real-time applications using cognitive radios. We study a two-link network, a single secondary link and a primary network abstracted to a single primary link, with and without relaying capability. We analytically prove that exploiting the packet relaying capability at the secondary transmitter improves the Effective Capacity of the secondary user. Finally, we present numerical results that support our theoretical findings.