Name
Title | ||
|---|---|---|
Optimal Power Allocations For Two-Users Spectrum Sharing Cognitive Radio With Interference Limit |
Abstract | ||
|---|---|---|
In this paper, we analytically quantify the optimal power allocations for two-users spectrum sharing cognitive radio, in which two secondary users (SUs) share the licensed spectrum resource of a primary user (PU) for data transmissions. Specifically, the SUs aim at maximizing their total throughput while taking into account both their respective throughput requirements and more particularly, an interference limit constraint imposed by the PU. To derive the optimal power allocations, we categorize the feasible region of proposed problem into three different cases, and for each case, we derive the optimal power allocations in analytical expressions. Different from previous works showing that the optimal power allocations only resided on one of the vertexes of the feasible region, our results reveal that the optimal power allocations might reside on the boundary of the feasible region that corresponds to the PU's interference limit constraint. Numerical results are performed to validate our analytical results. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1007/978-3-319-21837-3_18 | WIRELESS ALGORITHMS, SYSTEMS, AND APPLICATIONS |
Keywords | Field | DocType |
Power allocations, Spectrum sharing cognitive radio, Interference limit | Expression (mathematics),Computer science,Computer network,Feasible region,Interference (wave propagation),Throughput,Spectrum sharing,Licensed spectrum,Cognitive radio | Conference |
Volume | ISSN | Citations |
9204 | 0302-9743 | 0 |
PageRank | References | Authors |
0.34 | 6 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yanfei He | 1 | 26 | 3.46 |
| Yuan Wu | 2 | 0 | 0.68 |
| Jiachao Chen | 3 | 16 | 1.31 |
| Qinglin Zhao | 4 | 158 | 26.30 |
| Weidang Lu | 5 | 309 | 55.86 |