Speeding up the Hungarian algorithm
Computers and Operations Research
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
QoS Requirements of Network Applications on the Internet
Information-Knowledge-Systems Management
QoS-aware distributed spectrum sharing for heterogeneous wireless cognitive networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
A survey on MAC protocols for cognitive radio networks
Ad Hoc Networks
Temporal spectrum sharing based on primary user activity prediction
IEEE Transactions on Wireless Communications
Activity pattern impact of primary radio nodes on channel selection strategies
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Competitive spectrum sharing in cognitive radio networks: a dynamic game approach
IEEE Transactions on Wireless Communications
Channel status prediction for cognitive radio networks
Wireless Communications & Mobile Computing
Qos-aware resource allocation for multimedia users in a multi-cell spectrum sharing radio network
Proceedings of the 7th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
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In this paper, we propose an optimized spectrum sharing scheme based on the Hungarian Algorithm to guarantee the quality of service (QoS) for individual cognitive radio (CR) users belonging to different CR cells. The proposed scheme is most favorable for overlapping cells where the users are demanding channels for heterogeneous applications such as chatting, web browsing, or voice and video streaming. The spectrum sharing optimization with the QoS guarantee (SSO-QG) is an optimal scheme that can operate in throughput enhancement mode, high reliability mode and collision avoidance mode based on the weight assigned to the corresponding QoS parameters in accordance with the demands of different applications. Simulation results show that the proposed scheme outperforms the existing schemes in terms of forming the optimal sharing pattern and meeting the stringent QoS requirements fairly enough according to the demands of the cell. Moreover, it reduces collisions with primary users.