Adaptive Burst-Writes (ABW)

Interference Resilience of Burst-by-burst Adaptive Modems

Adapt ive modula t ion can achieve channel capacity gains b y adap t ing t h e n u m b e r of b i t s p e r transmission symbol o n a burst-by-burst basis, in ha rmony w i t h channel quali ty fluctuations. I n th is t rea t i se the i r interference resilience is quantified a n d t h e modem mode switching levels a r e de termined und e r interfered conditions. T h e associated performance cur...

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Synthesis and structural characterisation of CsCoPO4-ABW

The cobalt phosphate, CsCoPO4, possessing the zeolite ABW framework topology has been synthesised using a solid state route. Rietveld refinement from powder neutron diffraction data has shown the material to be a direct structural analogue of CsZnPO4 polymorph III. The framework is made up of alternating cobaltate and phosphate tetrahedra sharing vertices with caesium counter cations located in...

Truly Non-blocking Writes

Writing data within user or operating system memory often encounters the classic read-before-write problem whereby the page written to must first be read from the backing store, effectively blocking the writing process before modifications are made. Unfortunately, the large gap between memory and storage access performance adversely affects workloads that require substantial readbefore-write op...

Implementation of an adaptive burst DQPSK receiver over shallow water acoustic channel

In an environment such as underwater channel where placing test equipments are difficult to handle, it is much practical to have hardware simulators to examine suitably designed transceivers (transmitter/receiver). The simulators of this kind will then allow researchers to observe their intentions and carry out repetitive tests to find suitable digital coding/decoding algorithms. In this p...