Optical frequency combs (OFCs), based on mode-locked lasers (MLLs), have attracted considerable attention in many fields over recent years. Among the applications of OFCs, one of the most challenging works is the extraction of a highly stable microwave with low phase noise. Many synchronisation schemes have been exploited to synchronise an electronic oscillator with the pulse train from a MLL, ...

Many Wireless Sensor Network (WSN) services rely on time synchronisation, and since WSN nodes frequently operate in varying ambient conditions, adequate compensation for thermally-induced clock drift is needed. Also, WSN software – including both applications and operating systems – has to run on heterogeneous hardware, which requires synchronisation solutions that can be deployed with no or mi...

This paper develops a receiver structure to perform jointly ML synchronisation, equalisation and detection of a linearly modulated signal transmitted over a time-varying, frequency-selective, Rician faded channel, corrupted by AWGN. The receiver is particularly suited to a fast fading channel, where other receivers that rely on estimating the channel cannot track it quickly enough. The signal m...

Glycolytic oscillations, and in particular the synchronisation of these oscillations, have been intensively analysed experimentally as well as theoretically. Because the cellular membrane is permeable for products of glycolysis as acetaldehyde/pyruvate, cells can interact via exchanging these compounds. Various theoretical models have been proposed to explain the synchronisation of glycolytic o...

This article aims to describe how written translations of audiovisual products change along the dubbing process until they reach the audience, focusing mainly on the synchronisation stage. The corpus is made up of the first reel of the Catalan and Spanish translations of three different films released in 2006 (Casino Royale, Good night and good luck, and The Da Vinci Code). After a brief summar...

Wireless OFDM signals typically have a cyclicprefixed guard interval. The FFT timing synchronisation at the receiver is traditionally based on the peak point of the correlation output between the guard interval and its corresponding duplicate at the OFDM symbol’s tail. This approach does not in general find the optimum timing position for the FFT when the channel contains more than one path. Th...

Interaction between sensornet nodes and the physical environment in which they are embedded implies real-time requirements. Application tasks are divided into smaller subtasks and distributed among the constituent nodes. These subtasks must be executed in the correct place, and in the correct order, for correct application behaviour. Sensornets generally have no global clock, and incur unaccept...

The inference of performance models from low-level location tracking traces provides a means to gain high-level insight into customer and/or resource flow in complex systems. In this context our earlier work presented a methodology for automatically constructing Petri Net performance models from location tracking data. However, the capturing of synchronisation between service centres – the natu...

Multi-core processors are ubiquitous. Even embedded systems nowadays use processors with multiple cores. Such use cases often impose latency requirements because they interact with physical objects. One consequence is a need for synchronisation algorithms that provide predictable latency, in addition to high throughput. A promising approach are asynchronous critical sections that avoid waiting ...

This paper gives a general overview of the challenges that arise in using narrow-band signals, such as GSM, for localisation based on the time properties of the signal. Specifically, synchronisation and retrieving of time information are addressed. We pursue two contributions, namely, analysis of achievable synchronisation precision and processing of narrowband signals that can enable localizat...