Achieving MAC layer fairness in wireless packet networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Impact of interference on multi-hop wireless network performance
Proceedings of the 9th annual international conference on Mobile computing and networking
Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
ACM SIGMOBILE Mobile Computing and Communications Review
Linear Programming and Network Flows
Linear Programming and Network Flows
Capacity of multi-channel wireless networks: impact of number of channels and interfaces
Proceedings of the 11th annual international conference on Mobile computing and networking
Proceedings of the 11th annual international conference on Mobile computing and networking
Characterizing achievable rates in multi-hop wireless mesh networks with orthogonal channels
IEEE/ACM Transactions on Networking (TON)
Routing in Ad-hoc Networks with MIMO Links
ICNP '05 Proceedings of the 13TH IEEE International Conference on Network Protocols
Interference suppression in MIMO systems for throughput enhancement and error reduction
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Proceedings of the 12th annual international conference on Mobile computing and networking
On the complexity of scheduling in wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Efficient interference-aware TDMA link scheduling for static wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Performance evaluation of scheduling in IEEE 802.16 based wireless mesh networks
Computer Communications
Joint MIMO-OFDM and MAC design for broadband multihop ad hoc networks
EURASIP Journal on Wireless Communications and Networking
Cross-layer issues in MAC protocol design for MIMO ad hoc networks
IEEE Wireless Communications
Adaptive scheduling for MIMO wireless networks: cross-layer approach and application to HSDPA
IEEE Transactions on Wireless Communications
The capacity of wireless networks
IEEE Transactions on Information Theory
Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels
IEEE Transactions on Information Theory
A survey on wireless mesh networks
IEEE Communications Magazine
Cross-layer scheduling for multi-user MIMO systems
IEEE Communications Magazine
From theory to practice: an overview of MIMO space-time coded wireless systems
IEEE Journal on Selected Areas in Communications
Capacity limits of MIMO channels
IEEE Journal on Selected Areas in Communications
Cross-layer optimization for wireless mesh networks with smart antennas
Computer Communications
Scheduling links for heavy traffic on interfering routes in wireless mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Local heuristic for the refinement of multi-path routing in wireless mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Cross-Layer Optimization of Multichannel Multiantenna WMNs
Wireless Personal Communications: An International Journal
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With the unique features of spatial multiplexing and interference suppression, Multiple Input Multiple Output (MIMO) techniques have great potential in the improvement of network capacity over conventional antenna technologies. In order to exploit the benefit of simultaneous transmissions provided by MIMO, researchers have proposed a number of cross-layer optimizations and MAC layer designs to increase the throughput of wireless mesh or ad hoc networks, where the number of elements in the antenna arrays are pre-allocated or evenly assigned to the routers. In this paper, we argue that using the same number of elements in each antenna array in all routers is not a necessary condition for the improvement of system performance. This is because the requirement for the number of elements is quite different for each router. Especially at those critical routers that have huge aggregate traffic toward the gateway, more elements are needed not only for the traffic relay but also for the interference suppression. Based on this observation, we define the joint problem of bandwidth allocation, element assignment and scheduling to characterize the throughput benefits of cross-layer optimizations. We propose a Cost-Aware Element Assignment (CAEA) technique to minimize the total number of the antenna elements when still achieving the optimal bandwidth allocation. In addition, to verify the efficiency of the CAEA assignment, a heuristic Traffic-aware Stream-controlled Link Scheduling (TSLS) algorithm is proposed to provide a schedulable bandwidth allocation. We demonstrate through extensive simulations that our solutions (CAEA, TSLS) not only effectively save the total cost on antenna elements but also perform close to optimal on the average.