King Abdullah University of Science and Technology

Ahmed Bader

Mohamed-Slim Alouini

Yassin Ayadi

A full-duplex autonomous cooperative routing in an ad hoc network is described. A central station transmits a broadcast packet to a plurality of additional communication nodes in the ad hoc network over a half-duplex frequency channel. The broadcast packet allows other communication nodes to autonomously compute frequency channel assignments for forwarding a packet during a full-duplex data transmission. A source communication node transmits the packet on a full-duplex frequency channel over the ad hoc network towards a sink communication node during the full-duplex data transmission after a frequency channel has been assigned for the full-duplex data transmission.

Full-duplex forwarding in autonomous cooperative routing

An embodiment of a non-invasive beamforming add-on apparatus couples to an existing antenna port and rectifies the beam azimuth in the upstream and downstream directions. The apparatus comprises input circuitry that is configured to receive one or more signals from a neighboring node of the linear wireless sensor network; first amplifier circuitry configured to adjust an amplitude of a respective received signal in accordance with a weighting coefficient and invoke a desired phase to a carrier frequency of the received signal thereby forming a first amplified signal; and second amplifier circuitry configured to adjust a gain of the first amplified signal towards upstream and downstream neighbors of the linear wireless sensor in the linear wireless sensor network.

Non-invasive beam forming add-on module

Embodiments of the present disclosure provide techniques for packet routing. In an embodiment, when a transmitting communication device injects a packet into a communication network, a receiving communication device that is closer to a sink or destination than the transmitting communication device relays the packet in a first hop. In a subsequent hop, a receiving communication device evaluates position information conveyed by the transmitting communication device of the first hop to determine whether to forward the packet. Accordingly, a receiving communication device receiver that offers progress towards the sink can elect to forward the packet.

Ad hoc networking scheme for mobile cyber-physical systems

In accordance with the present disclosure, embodiments of an exemplary scheduling controller module or device implement and improved scheduling process such that the targeted reduction in schedule length can be achieve while incurring minimal energy penalty by allowing for a large rate (or duration) selection alphabet.

Scheduling algorithm for linear networks

A source node in a multihop network determines whether to transmit in a channel based on whether the channel is occupied by a packet transmission with a large number of relays; whether the source node is in the data tones back-off zone; and the source node is in the busy tone back-off zone. A multihop network transmits a packet including a RACH area and a hop number. The RACH area includes a list of subcarriers. A source node in the network dynamically determines the size of the RACH area. A node in the network performs an open-loop transmit power control.

Packet structure

A source node in a multihop network determines whether to transmit in a channel based on whether the channel is occupied by a packet transmission with a large number of relays; whether the source node is in the data tones back-off zone; and the source node is in the busy tone back-off zone.

Growing community of inventors

Tla'a Al-Ali District, Jordan

Ahmed Bader