Convex Optimization
Cross-layer designs of multichannel reservation MAC under Rayleigh fading
IEEE Transactions on Signal Processing
Cross-layer optimization for OFDM wireless networks-part I: theoretical framework
IEEE Transactions on Wireless Communications
Cross-layer optimization for OFDM wireless networks-part II: algorithm development
IEEE Transactions on Wireless Communications
Cross-Layer Design for Power Efficiency and QoS Provisioning in Multi-Hop Wireless Networks
IEEE Transactions on Wireless Communications
Capacity of fading channels with channel side information
IEEE Transactions on Information Theory
Optimum power control over fading channels
IEEE Transactions on Information Theory
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
Exploiting decentralized channel state information for random access
IEEE Transactions on Information Theory
Stability and delay of finite-user slotted ALOHA with multipacket reception
IEEE Transactions on Information Theory
IEEE Communications Magazine
Mesh networks: commodity multihop ad hoc networks
IEEE Communications Magazine
Transmit power adaptation for multiuser OFDM systems
IEEE Journal on Selected Areas in Communications
New cross-Layer design approach to ad hoc networks under Rayleigh fading
IEEE Journal on Selected Areas in Communications
Adaptive downlink scheduling and rate selection: a cross-layer design
IEEE Journal on Selected Areas in Communications
Cochannel interference avoidance MAC in wireless cellular networks
IEEE Transactions on Communications
Channel aware distributed random access
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Review: A survey on cross-layer solutions for wireless sensor networks
Journal of Network and Computer Applications
Channel-aware distributed medium access control
IEEE/ACM Transactions on Networking (TON)
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We consider schemes for decentralized cross-layer optimization of multichannel random access by exploiting local channel state and traffic information. In the network we are considering, users are not necessarily within the transmission ranges of all others; therefore, when a user is transmitting, it may only interfere with some users, which is different from most existing channel aware Aloha schemes. Besides, we also consider complicated traffic distribution, e.g. each user may choose to send packets to or receive packets from different users simultaneously. We develop decentralized optimization for multichannel random access (DOMRA). DOMRA consists of three steps: neighborhood information collection, transmission control of the MAC layer based on the instantaneous channel state information, and power allocation for each traffic flow on each subchannel. Simulation results demonstrated that DOMRA significantly outperforms existing channel aware Aloha schemes due to its exploitation of both multiuser diversity through cross-layer design and the inhomogeneous characteristics of traffic spatial distribution in the network. Besides, DOMRA performs closely to the globally optimum solution, which requires full network knowledge to be obtained. DOMRA can be applied to different types of wireless networks, such as wireless sensor networks and mobile ad hoc networks, to improve quality of service.