Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Power-saving protocols for IEEE 802.11-based multi-hop ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Exploiting medium access diversity in rate adaptive wireless LANs
Proceedings of the 10th annual international conference on Mobile computing and networking
Fundamentals of wireless communication
Fundamentals of wireless communication
OMAR: Utilizing Multiuser Diversity in Wireless Ad Hoc Networks
IEEE Transactions on Mobile Computing
Joint MIMO-OFDM and MAC design for broadband multihop ad hoc networks
EURASIP Journal on Wireless Communications and Networking
A survey on wireless mesh networks
IEEE Communications Magazine
Intelligent medium access for mobile ad hoc networks with busy tones and power control
IEEE Journal on Selected Areas in Communications
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As a newly emerging technology with some inherent advantages over other wireless networks, wireless mesh networks (WMNs) have received much attention recently. In this paper, we present a cross-layer protocol design for WMNs, which combines the MIMO technique in the physical layer and the opportunistic medium access in theMAC layer into an integrated entity and jointly considers their interactions. In particular, we propose a protocol named opportunistic medium access control in MIMO WMNs (OMAC-MWMN). In an infrastructure/backbone WMN, mesh routers are grouped into clusters, in each of which a cluster head has multiple pending links with its neighbors. This traffic-driven clustering provides a great opportunity for a cluster head to locally coordinate the multiuser medium access. In each iteration of the scheduling, a cluster head opportunistically chooses some compatible neighbors among multiple candidates by utilizing the benefits of multiuser diversity. Then the cluster head simultaneously communicates with multiple selected compatible neighbors through multiuser spatial multiplexing. We formalize the problem of finding a scheduler for a cluster head to select compatible neighbors as finding a compatible pair with the maximum SINR (signal-to-interference and noise ratio) product. Our simulation results show that the proposed protocol can significantly improve system capacity with minimum extra overhead.