A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
A power control MAC protocol for ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
A Distributed Transmission Power Control Protocol for Mobile Ad Hoc Networks
IEEE Transactions on Mobile Computing
Medium Access Control in Ad Hoc Networks with MIMO Links: Optimization Considerations and Algorithms
IEEE Transactions on Mobile Computing
Wireless LAN: Past, Present, and Future
Proceedings of the conference on Design, Automation and Test in Europe - Volume 3
MIMO technology for advanced wireless local area networks
Proceedings of the 42nd annual Design Automation Conference
Routing in Ad-hoc Networks with MIMO Links
ICNP '05 Proceedings of the 13TH IEEE International Conference on Network Protocols
Energy-constrained modulation optimization
IEEE Transactions on Wireless Communications
The capacity of wireless networks
IEEE Transactions on Information Theory
Intelligent medium access for mobile ad hoc networks with busy tones and power control
IEEE Journal on Selected Areas in Communications
Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Transmission power control in wireless ad hoc networks: challenges, solutions and open issues
IEEE Network: The Magazine of Global Internetworking
Adaptive RF chain management for energy-efficient spatial-multiplexing MIMO transmission
Proceedings of the 14th ACM/IEEE international symposium on Low power electronics and design
Channel Access Scheme for MIMO-Enabled Ad Hoc Networks with Adaptive Diversity/Multiplexing Gains
Mobile Networks and Applications
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Transmission power control has often been used in wireless packet networks to improve the channel reuse and reduce energy consumption. It has been mainly applied to single-input single-output (SISO) systems, where each node is equipped with a single antenna. In this paper, we propose a power-controlled channel access protocol for MIMO-capable wireless LANs with two antennas per node. Our protocol, called E-BASIC, is based on a modification of the classic CSMA/CA access scheme, where we dynamically adjust the "transmission mode" and the transmission power on a per-packet basis so as to minimize the total energy consumption. By "transmission mode" we mean one of the four possible transmit/receive antenna configurations: 1 x 1 (SISO), 2 x 1 (MISO), 1 x 2 (SIMO), and 2 x 2 (MIMO). Our energy model accounts for both the transmission and the circuit powers. While the MIMO mode requires less RF transmission energy than the other three modes, it also incurs the highest circuit energy consumption. Depending on the transmitter-receiver distance, any of the four modes can be the "optimal" one in terms of minimizing the total energy consumption. We study the performance of E-BASIC in ad hoc and infrastructure-based scenarios and compare it with two channel access protocols (802.11 and BASIC) that use a fixed transmission mode (SISO or MIMO) all the time. Our simulations show that E-BASIC often consumes much less total energy than the reference protocols. We further incorporate E-BASIC into the design of a power-aware routing (PAR) scheme that uses a variant of Dijkstra's algorithm to select the most energy-efficient end-to-end path between nodes.