A Spectrum Allocation Mechanism Based on HJ-DQPSO for Cognitive Radio Networks
Journal Title: EAI Endorsed Transactions on Cognitive Communications - Year 2015, Vol 1, Issue 4
Abstract
In cognitive radio network model consisting of secondary users and primary users, in order to solve the difficult multi-objective spectrum allocation issue about maximizing network efficiency and users’ fairness to access network, this paper proposes a new discrete multi-objective combinatorial optimization mechanism—HJ-DQPSO based on Hooke Jeeves (HJ) and Quantum Particle Swarm Optimization (QPSO) algorithm. The mechanism adopts HJ algorithm to local search to prevent falling into the local optimum, and proposes a discrete QPSO algorithm to match the discrete spectrum assignment model. The mechanism has the advantages of approximating optimal solution, rapid convergence, less parameters, avoiding falling into local optimum. Compared with existing spectrum assignment algorithms, the simulation results show that according to different optimization objectives, the HJ-DQPSO optimization mechanism for multi-objective optimization can better approximate optimal solution and converge fast. We can obtain a reasonable spectrum allocation scheme in the case of satisfying multiple optimization objectives.
Authors and Affiliations
Zhu Jiang, Xiong Jiahao, Chen Hongcui, Han Chao
Signal Interference Analysis Model In Near-Field Coupling Communication
Near-field coupling communication (NFCC) is a technology that uses the surface of the human body as a transmission path. To suppress the radiation signal from the human body, NFCC devices use a carrier frequency of less...
TimeNET Optimization Environment
In this paper a novel tool for simulation-based optimization and design-space exploration of Stochastic Colored Petri nets (SCPN) is introduced. The working title of this tool is TimeNET Optimization Environment (TOE). T...
Scenarios and business models for mobile network operators utilizing the hybrid use concept of the UHF broadcasting spectrum
This paper explores and presents scenarios and business models for mobile network operators (MNOs) in the novel hybrid use spectrum sharing concept of the Ultra High Frequency broadcasting spectrum (470-790 MHz) used for...
A New Mechanism of Dynamic Spectrum Access Based on Restless Bandit Allocation Indices
Based on the theory of Restless Multi-Armed Bandit model, a novel mechanism of dynamic spectrum access was proposed for the problem that how to coordinate multi-user access multi-channel which were idle. Firstly, take ca...
Link budget investigations for ingestible antenna in MedRadio band
Ingestible Medical Devices (IMDs) have given a strong boost to the health sector by creating new horizons in the prevention, monitoring and treatment of diseases in the gastrointestinal (GI) tract. In this study, we nume...