Abstract:
Various example embodiments are disclosed relating to wireless networks, such as relay networks or multi-hop networks. According to an example embodiment, a wireless network (302) may be provided that may include one or more relay nodes (320, 330) operating in a decode-and-forward (DF) mode, and one or more relay nodes (320, 330) operating in an amplify-and-forward (AF) mode. According to an example embodiment, a block of data may be received at a relay node (330) via a first carrier frequency from a first wireless node (320). For example, the first wireless node (320) may be operating in a DF mode. The block of data may be forwarded from the relay node (330) to a second wireless node (332) via a second carrier frequency using an amplify-and-forward (AF) mode.
Abstract:
Apparatus, and an associated method, for allocating data to communication channels of a multiple-input communication system and to select power levels at which the data is caused to be communicated upon the communication channels. Data allocation is made responsive to communication quality indications that identify communication conditions on the different ones of the channels. Data allocation and power level allocation is made to achieve best a selected performance parameter.
Abstract:
An apparatus comprising: a spin torque oscillator configured to receive an input electric current and to produce a radio frequency output signal; and a tunable current source for providing an input electric current to the spin torque oscillator.
Abstract:
Vorrichtung (10) umfassend: eine Matrix (16); eine Vielzahl von in mindestens einem Teil der Matrix (16) verteilten magnetischen Teilchen (14); wobei die Matrix (16) konfiguriert ist, der Vielzahl magnetischer Teilchen (14) eine Änderung ihrer Position relativ zueinander zu ermöglichen, und wobei mindestens ein Teil der Vielzahl magnetischer Teilchen (14) konfiguriert ist, ein oder mehrere benachbarte magnetische Teilchen magnetisch abzustoßen.
Abstract:
In a method for scheduling communication resources, data-flow-specific information relating to a next scheduling period for a set of data flows is determined in a first entity. The determined data-flow-specific information is submitted to a second entity, where communication resource properties for communication resources are estimated. Communication resources in the next scheduling period are allocated in the second entity based at least on said data-flow-specific information and said communication resource properties.
Abstract:
The present invention is concerned with optimising bit loading and power allocation in a communication system for transferring data between a transmitter and a receiver over a plurality of channels. The system comprise s modulation circuitry having a plurality of different modulation alphabets thereby providing a set of possible bit loading sequences. The system also h as circuitry for determining the power to be allocated for each bit loading sequence based on minimising the error rate and circuitry for selecting the bit loading sequence with the lowest bit error rate.
Abstract:
Apparatus including one or more carbon nanotubes; one or more fullerenes directly covalently bonded to the one or more carbon nanotubes; and one or more photoactive molecules bonded to the one or more fullerenes.