Abstract:
Interference characterization in cognitive networks with handover has received less attention
in stochastic geometry-based interference management and control, especially in cognitive radio networks,
because of the possibility of complicating the analysis of various performance metrics of interest, such
as outage probability and throughput. However, because of the possible mobility that is observed in real
practical systems, some of the receivers may be located outside the coverage regions of their paired
transmitters. In order to ensure that any receiver located outside the coverage region of its paired transmitter
continues to receive its required service from its paired transmitter while still achieving tractable analysis
for various performance metrics of interest, we adopted multiuser diversity via packet relaying. With this
approach, any secondary nodes waiting to transmit can be used to sustain coverage between any typical active
transmitter and receiver pair, while reducing their own waiting period in the process. We obtained tractable
analysis for outage probability, spectral efficiency and throughput and showed the effect of handover rate over
the network performance. The outcomes of the numerical results show that the proposed approach is capable
of improving the overall network performance by improving coverage and throughput among network users
in the cognitive radio networks.
