Matrix analysis
Principles of Wireless Networks: A Unified Approach
Principles of Wireless Networks: A Unified Approach
Fundamentals of wireless communication
Fundamentals of wireless communication
Randomized cooperation in asynchronous dispersive links
IEEE Transactions on Communications
Randomized Space-Time Coding for Distributed Cooperative Communication
IEEE Transactions on Signal Processing
SNR estimation for nonconstant modulus constellations
IEEE Transactions on Signal Processing
Cooperative wireless communications: a cross-layer approach
IEEE Wireless Communications
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
CoopMAC: A Cooperative MAC for Wireless LANs
IEEE Journal on Selected Areas in Communications
Cognitive cross-layer design with QoS provisioning for cooperative wireless networking
Proceedings of the 44th Annual Simulation Symposium
A cross-layer multi-hop cooperative network architecture for wireless ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Physical (PHY) layer cooperation in a wireless network allows neighboring nodes to share their communication resources in order to create a virtual antenna array by means of distributed transmission and signal processing. A novel medium access control (MAC) protocol, called CoopMAC, has been recently proposed to integrate cooperation at the PHY layer with the MAC sublayer, thereby achieving substantial throughput and delay performance improvements. CoopMAC capitalizes on the broadcast nature of the wireless channel and rate adaptation, recruiting a single relay on the fly to support the communication of a particular source-destination pair. In this paper, we propose a cross-layer rate-adaptive design that opportunistically combines the recruitment of multiple cooperative nodes and carrier sensing multiple access with collision avoidance. We focus on a single-source single-destination setup, and develop a randomized cooperative framework, which is referred to as randomized CoopMAC (RCoopMAC). Thanks to the randomization of the coding rule, the RCoopMAC approach enables the blind participation of multiple relays at unison relying only on the mean channel state information (CSI) of the potential cooperating nodes, without introducing additional signaling overhead to coordinate the relaying process. The proposed RCoopMAC scheme is not only beneficial in substantially improving the link quality and therefore the sustainable data rates but, thanks to the decentralized and agnostic coding rule, it also allows to effectively recruit multiple relays in a robust fashion, i.e., even when the required mean CSI is partially outdated.