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Poetry is closest to the heart. Through its symbols, word pictures, intuition, feelings and emotions it is a hint of history, the momentary present and a visionary tool of the future. A poem or a painting is analogous to an iceberg10% visible, 90% hidden meaning. The reader provides the narrative. These poems, with the exception of five or six, were written after 2000. They show my explorations into the arts, love, people I met along the way, my protestations, introspections, and new perspectives I gained after times of change, personal problems and separations from those I love. The poems enabled me to find new strength, to harness my thoughts of years past, to live peaceably in the present and to recognize that a future of dreams and hopes can become reality.

Spectrum

Great Britain: Parliament: House of Commons: Culture, Media and Sport Committee

Published: 2011-11-03

Total Pages: 170


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This report looks at the way in which commercial spectrum holdings are allocated and regulated. This investigation was prompted by the imminence of the next spectrum auction in 2012. Ofcom, as spectrum regulator, has a very difficult role to play in striking a balance between the needs of consumers, spectrum users and service providers, and the public purse. The report finds that Ofcom is doing a good job in striking this balance and is often having to make very difficult and commercially sensitive judgements. Ofcom's consultation on the rules for the next auction has divided opinion among the four mobile network operators, but the Committee remarks that they rarely agree on matters concerning spectrum allocation. Ofcom proposes that one of the spectrum licences available at the auction will contain a coverage obligation requiring the successful bidder to offer mobile internet coverage to an area in which at least 95% of the population lives. The Committee believes that this does not go far enough to hasten the roll-out of mobile broadband, and recommends that the coverage obligation should be set at 98% and that Ofcom consider applying this obligation to more than one licence. The Committee agree with proposals to implement spectrum caps and floors at the auction, this being the best viable option to ensure a competitive tension in the spectrum market place. Ofcom's remit should be widened in order that the interests of British businesses, whose spectrum use plays an important part in the UK economy, are best served.
The third book in the Web Shifter's Library series returns to the adventures of Esen, a shapeshifting alien who must navigate the perils of a hostile universe. Here Be Monsters Something malevolent lurks in deep space, something able to pluck starships from their course and cause their crews to vanish. It has a purpose: to use those ships to mark an unmistakable boundary. A warning. It has an interest: Botharis, the planet where Esen and Paul have established the All Species' Library of Linguistics and Culture. Home to Veya Ragem, whose ship was the first to trespass. Esen and Paul will need every resource, every friend and even foes, if they're to discover who--or what is behind this before more are lost. Once they do, Esen plans to use her abilities to comprehend and reason with this new species. What she doesn't know? There truly are monsters. And they wait for you in the dark. Just ask Evan Gooseberry.
The benefits and success of multi-carrier (MC) modulation on one side and the flexibility offered by the spread spectrum (SS) technique on the other side have motivated many researchers to investigate the combination of both techniques since 1993. This combination known as multi-carrier spread spectrum (MC-SS) benefits from the advantages of both systems and offers high flexibility, high spectral efficiency, simple detection strategies, narrow-band interference rejection capability, etc. The basic principle of this combination is straightforward: The spreading is performed as direct sequence spread spectrum (DS-SS) but instead of transmitting the chips over a single carrier, several sub-carriers are employed. The MC modulation and demodulation can easily be realized in the digital domain by performing IFFT and FFT operations. The separation of the users' signals can be performed in the code domain. MC-SS systems can perform the spreading in frequency direction, which allows for simple signal detection strategies. Since 1993, MC-SS has been deeply studied and new alternative solutions have been proposed. Meanwhile, deep system analysis and comparison with DS-CDMA have been performed that show the superiority of MC-CDMA.