A correlation-based and spectrum-aware admission control mechanism for multimedia streaming in cognitive radio sensor networks

作者：Hosseini Elahe S^*; Esmaeelzadeh Vahid; Berangi Reza; Akan Ozgur B

来源：International Journal of Communication Systems, 2017, 30(3): e2986.

DOI：10.1002/dac.2986

• cognitive radio sensor networks
• admission control
• spatial correlation
• QoS
• binary integer programming

Bandwidth management and traffic control are critical issues to guarantee the quality of service in cognitive radio networks. This paper exploits a network load refinement approach to achieve the efficient resource utilization and provide the required quality of service. A connection admission control approach is introduced in cognitive radio multimedia sensor networks to provide the data transmission reliability and decrease jitter and packet end-to-end delay. In this approach, the admission of multimedia flows is controlled based on multimedia sensors' correlation information and traffic characteristics. We propose a problem, connection admission control optimization problem, to optimize the connection admission control operation. Furthermore, using a proposed weighting scheme according to the correlation of flows issued by multimedia sensors enables us to convert the connection admission control optimization problem to a binary integer-programming problem. This problem is a kind of a Knapsack problem that is solved by a branch and bound method. Simulation results verify the proposed admission control method's effectiveness and demonstrate the benefits of admission control and traffic management in cognitive radio multimedia sensor networks.

• 出版日期2017-2