Computer Networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Design and evaluation of a new MAC protocol for long-distance 802.11 mesh networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Partially overlapped channels not considered harmful
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
Wireless virtualization on commodity 802.11 hardware
Proceedings of the second ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Rethinking virtual network embedding: substrate support for path splitting and migration
ACM SIGCOMM Computer Communication Review
A framework for virtual network embedding in wireless networks
CFI '09 Proceedings of the 4th International Conference on Future Internet Technologies
Practical, distributed channel assignment and routing in dual-radio mesh networks
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
A virtual network mapping algorithm based on subgraph isomorphism detection
Proceedings of the 1st ACM workshop on Virtualized infrastructure systems and architectures
Wireless mesh networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Network virtualization: state of the art and research challenges
IEEE Communications Magazine
A survey of network virtualization
Computer Networks: The International Journal of Computer and Telecommunications Networking
Multiple radio channel assignement utilizing partially overlapped channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Survivable virtual network embedding
NETWORKING'10 Proceedings of the 9th IFIP TC 6 international conference on Networking
A survey of quality of service in IEEE 802.11 networks
IEEE Wireless Communications
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Network virtualization of a wireless mesh network (WMN) is an economical way for different subscribers to customize their exclusive access networks through a common network infrastructure. The most critical task of network virtualization is virtual network embedding, which can be divided into two sub-problems: node mapping and link mapping. Although there exist approaches to virtual network embedding in wired networks, the characteristics of WMNs make virtual network embedding become a unique and challenging problem. In this paper, virtual access network embedding is studied for WMNs. To support flexible resource allocation in virtual access network embedding, each access node is designed based on orthogonal frequency division multiple access (OFDMA) dual-radio architecture. Through subcarrier allocation on each link, virtual access networks are gracefully separated from each other. To coordinate channel assignment across different links under the constraint of a limited number of orthogonal channels, a novel channel allocation algorithm is proposed to exploit partially-overlapped channels to improve resource utilization. Since the virtual access network embedding problem is NP-hard, a heuristic algorithm is developed based on an enhanced genetic algorithm to obtain an approximate but effective solution. Simulation results illustrate that the virtual access network embedding framework developed in this paper works effectively in WMNs.