Name
Title | ||
|---|---|---|
A Genetic Algorithm for joint resource allocation in Cooperative Cognitive Radio Networks |
Abstract | ||
|---|---|---|
Existing literature in Cooperative Cognitive Radio Networks (CCRNs) always assumed a scenario where only one Primary User (PU) and several Secondary Users (SUs) coexist. However, in practice, multi-PUs and multi-SUs always coexist and the number of SUs is usually greater than that of PUs. Under such complex yet real scenarios, we assume that each PU not only allows a set of SUs to access its pre-allocated channel, but can leverage some of these SUs to improve its transmission rate via cooperative technologies. We consider a joint channel allocation and cooperation set partition problem in CCRNs, in which we aim to allocate a channel and assign a cooperation set that consists of several SUs for each PU, such that for a given period of time, the average transmission rates gained by all the users achieve maximum proportional fairness. We formulate the problem as a 0-1 non-linear programming model. Due to its NP-hardness, we propose a suboptimal Centralized Genetic Algorithm (CGA) for the problem. Extensive simulations demonstrate that CGA not only converges rapidly, but is shown to perform as well as 92% of the optimal solution delivered by brutal search, in terms of the fitness that reflects the fairness degree of the transmission performance gained by all the users. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/IWCMC.2011.5982411 | IWCMC |
Keywords | Field | DocType |
secondary users,joint channel allocation,np-hardness,nonlinear programming,cognitive radio,suboptimal centralized genetic algorithm,cooperation set partition problem,radio networks,channel allocation,computational complexity,primary user,cooperation set partition,genetic algorithms,cooperative cognitive radio networks,0-1 nonlinear programming model,joint resource allocation,resource allocation,non linear programming,proportional fair,cognitive radio network,genetic algorithm | Partition problem,Mathematical optimization,Computer science,Nonlinear programming,Computer network,Communication channel,Resource allocation,Channel allocation schemes,Genetic algorithm,Computational complexity theory,Distributed computing,Cognitive radio | Conference |
Volume | Issue | ISSN |
null | null | 2376-6492 |
ISBN | Citations | PageRank |
978-1-4244-9539-9 | 0 | 0.34 |
References | Authors | |
6 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wei Yang | 1 | 19 | 2.27 |
| Dongsong Ban | 2 | 29 | 3.53 |
| Weifa Liang | 3 | 1676 | 134.75 |
| Wenhua Dou | 4 | 297 | 33.02 |