Characterization and analysis of multi-hop wireless MIMO network throughput
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Wireless mesh networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
An Optimization Framework for Demand-based Fair Stream Allocation in MIMO Ad Hoc Networks
Mobile Networks and Applications
Maximum Achievable Throughput in Multiband Multiantenna Wireless Mesh Networks
IEEE Transactions on Mobile Computing
A tractable and accurate cross-layer model for multi-hop MIMO networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Cross-layer optimization for wireless mesh networks with smart antennas
Computer Communications
IEEE Transactions on Signal Processing
Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels
IEEE Transactions on Signal Processing
Cross-layer optimization of wireless networks using nonlinear column generation
IEEE Transactions on Wireless Communications
The capacity of wireless networks
IEEE Transactions on Information Theory
Isotropic fading vector broadcast Channels: The scalar upper bound and loss in degrees of freedom
IEEE Transactions on Information Theory
Jointly optimal routing and scheduling in packet ratio networks
IEEE Transactions on Information Theory
Mesh networks: commodity multihop ad hoc networks
IEEE Communications Magazine
Multi-hop wireless backhaul networks: a cross-layer design paradigm
IEEE Journal on Selected Areas in Communications
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Use of multiple channels can significantly improve the throughput of wireless mesh networks (WMNs). Additionally, recent advances in radio technology have made it possible to realize software-defined radio (SDR), which is capable of switching from one channel to another dynamically. On the other hand, equipping wireless nodes with multiple antennas creates great potential for throughput improvement via interference suppression, spatial multiplexing, and spatial division multiple access techniques. In this paper, we investigate the joint optimization of routing and scheduling in multichannel WMNs, where nodes are equipped with a single SDR and multiple antenna elements. We analyze achievable throughput of these networks under four different multiantenna modes: single user single stream, single user multi stream, multi user single stream, and multi user multi stream, each mode integrates different combinations of multiantenna techniques. We mathematically model scheduling and interference constraints and formulate joint routing and scheduling optimization problem with the objective of maximizing the throughput by minimizing network schedule time such that traffic demands for a set of sessions are satisfied. A column generation-based decomposition approach is proposed to solve the problem. Simulation results are presented to evaluate the impact of number of antennas, number of channels, and number of sessions on the schedule time for the four proposed modes.