Name
Abstract | ||
|---|---|---|
In an underlay cognitive radio network, the secondary (underlay) transmitters generate interference to a primary receiver, while an underlay receiver is subject to interference from both the primary transmitters and other underlay transmitters not associated with it. Although guard regions, maximum allowable underlay transmit powers, and contention distances help guarantee a minimum performance to the primary network, no such safeguard exists for the underlay network. To this end, this paper characterizes the aggregate interference on an underlay receiver while considering power control and receiver association schemes for both networks. Transmitters and receivers of both networks are assumed to be distributed as independent Poisson fields in the 2-D plane, and all links undergo exponential path loss and Rayleigh fading. We derive the moment generating function of the aggregate interference on an underlay receiver and its outage probability. We show that the interference from the primary network does not depend on any node density, and that it dominates the aggregate interference. Furthermore, it is shown that increasing primary and underlay receiver densities reduce the outage probability under lower required power thresholds for the primary receivers. |
Year | Venue | Field |
|---|---|---|
2015 | 2015 IEEE 82ND VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | Transmitter,Rayleigh fading,Computer science,Power control,Computer network,Co-channel interference,Electronic engineering,Path loss,Underlay,Interference (wave propagation),Moment-generating function |
DocType | Citations | PageRank |
Conference | 1 | 0.35 |
References | Authors | |
12 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Sachitha Kusaladharma | 1 | 46 | 9.53 |
| Prasanna Herath | 2 | 23 | 3.06 |
| C. Tellambura | 3 | 4889 | 374.02 |