Name
Title | ||
|---|---|---|
Geometry-based optimal power control of fading multiple access channels for maximum sum-rate in cognitive radio networks |
Abstract | ||
|---|---|---|
In this letter, a power-control scheme for maximum sum-rate is proposed for the fading multiple access channels by considering the presence of primary users. Both the average transmit-power constraints and the peak interference-temperature constraints are considered. The interference caused by cognitive users must be under a pre-specified threshold for protecting primary users. The power-control optimization is considered as a novel geometrical problem which investigates the relationship of positions of a line and a few points. At most two users transmit simultaneously for optimality and the corresponding conditions are provided for both cases. Based on the analysis, the optimal power control is given for each specific fading state. For lowering computational complexity, the power-control optimization problem is divided into two categories according to different tight constraints. Simulation results are provided for the optimal power-control performance. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TWC.2010.06.090868 | IEEE Transactions on Wireless Communications |
Keywords | Field | DocType |
power-control optimization,cognitive radio networks,novel geometrical problem,power control,radiofrequency interference,capacity,peak interference-temperature constraints,multiple access channel,transmit-power constraints,cognitive radio,fading channels,optimal power-control performance,power-control optimization problem,multi-access systems,cognitive radio network,maximum sum-rate,geometry-based optimal power control,computational complexity,optimal power control,geometry-based optimal power control optimisation,primary user,specific fading state,fading channel,telecommunication control,average transmit-power constraint,primary users,fading multiple access channels,fading multiple access channel,power-control scheme,chromium,optimization,fading,optimization problem,interference,wireless communication,constraint optimization,channel capacity | Mathematical optimization,Telecommunications,Optimal control,Fading,Power control,Optimal design,Real-time computing,Interference (wave propagation),Optimization problem,Mathematics,Computational complexity theory,Cognitive radio | Journal |
Volume | Issue | ISSN |
9 | 6 | 1536-1276 |
Citations | PageRank | References |
11 | 0.73 | 12 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wei Wang | 1 | 477 | 53.58 |
| Wang Wenbo | 2 | 1200 | 130.70 |
| Qianxi Lu | 3 | 163 | 18.16 |
| Kang G. Shin | 4 | 14055 | 1487.46 |
| Tao Peng | 5 | 391 | 46.51 |