The Mammoth Book of Codeword Puzzles is a truly bumper collection of these hugely popular puzzles - also known as codewords, cipher crosswords and cipher word puzzles. There are also some fun variations in the form of dropouts, keywords, coded quotes and long diversions. In a codeword puzzle, each grid is made up of numbered squares, with each number corresponding to a letter of the alphabet. A few letters are given, but the rest must be discovered by using logic and word power to crack the code. HOURS OF STIMULATING PUZZLE FUN!
200 brand new compelling and addictive word and number puzzles from The Times. Appearing daily in the newspaper, Codeword is the cracking alternative to Su Doku and Crosswords. The concept is simple: each number represents a letter, so, starting with the solved letters, use your logic and vocabulary to reveal more letters, form words, and then crack the code! The most difficult puzzles for top solvers contain no solved letters so you need to employ all your logical strategies to crack those. The Codeword series is so popular because you don't need any prior knowledge, unlike a crossword. You can just pick up a pen and get puzzling. It steadily increases your vocabulary, as the difficulty slowly grows as you progress through the book, and even though you'll be working your brain, it's the perfect way to unwind.
Fun Codeword Puzzle Book for Adults - Can you crack the code? Codeword puzzles are similar to crossword puzzles: The difference is that there are no clues provided. Instead, every letter of the alphabet is replaced by a number from 1-26. For instance, the letter "F" might be replaced by number 15 and the letter "R" by number 4. And your task is to crack the code by figuring out which letter is represented by which number. Happy code breaking! Key features of the puzzle book: 120 Codeword Puzzles Book size: 8,5 x 11 inch (ca. DIN A4) Including instructions Solutions at the back of the puzzle book The codeword puzzle book is the perfect gift for adults and seniors who love brain jogging and mental excercises.
Perfect for coffee breaks, commutes or relaxing at home, this bumper collection of 300 brand new codeword puzzles is guaranteed to provide you with hours of entertainment. The book is arranged into easy, medium and hard puzzles and each puzzle is presented in a 13 x 13 grid on its own page. Printed in a portable paperback format meaning it can be taken with you on your travels or sit neatly on your bedside table.
This text recounts the little known history of the Illuminati, and reviews how knowledge of this secret organisation was transmitted to America, and more importantly, how it has ruled the world from that country ever since.
Codeword Puzzle Book for Adults Codewords (sometimes called Code Breakers) are like crosswords with no clues. Instead, every letter of the alphabet has been replaced by a number, all you have to do is decipher which letter is represented by which number. This Codeword Puzzle Book is a fun way for teens, adults or seniors to sharpen their minds and test their Logic Skills. Including 90 Puzzles to keep you entertained for hours. This is the UK English Spelling version. Codeword Puzzle Book Features: Loads of Puzzles: 90 Pages of Puzzles Suitable for Most Levels: Medium to Hard Difficulty Perfectly Sized - 7" x 10" Solutions Can be Found at the Back of the Book Premium Matte Color Cover Puzzle King Publishing: Puzzle Books for Everyone!
Quasi-Orthogonal Space-Time Block Code presents an up-to-date, comprehensive and in-depth discussion of an important emerging class of space-time codes, called the Quasi-Orthogonal STBC (QO-STBC). Used in Multiple-Input Multiple-Output (MIMO) communication systems, they provide transmit diversity with higher code rates than the well-known orthogonal STBC (O-STBC), yet at lower decoding complexity than non-orthogonal STBC. This book will help readers gain a broad understanding of the fundamental principles as well as the state-of-the-art work in QO-STBC, thus enabling them to appreciate the roles of QO-STBC in future broadband wireless systems and to inspire further research./a
Although several books cover the coding theory of wireless communications and the hardware technologies and coding techniques of optical CDMA, no book has been specifically dedicated to optical coding theory—until now. Written by renowned authorities in the field, Optical Coding Theory with Prime gathers together in one volume the fundamentals and developments of optical coding theory, with a focus on families of prime codes, supplemented with several families of non-prime codes. The book also explores potential applications to coding-based optical systems and networks. Learn How to Construct and Analyze Optical Codes The authors use a theorem-proof approach, breaking down theories into digestible form so that readers can understand the main message without searching through tedious proofs. The book begins with the mathematical tools needed to understand and apply optical coding theory, from Galois fields and matrices to Gaussian and combinatorial analytical tools. Using a wealth of examples, the authors show how optical codes are constructed and analyzed, and detail their performance in a variety of applications. The book examines families of 1-D and 2-D asynchronous and synchronous, multilength, and 3-D prime codes, and some non-prime codes. Get a Working Knowledge of Optical Coding Theory to Help You Design Optical Systems and Networks Prerequisites include a basic knowledge of linear algebra and coding theory, as well as a foundation in probability and communications theory. This book draws on the authors’ extensive research to offer an authoritative reference on the emerging field of optical coding theory. In addition, it supplies a working knowledge of the theory and optical codes to help readers in the design of coding-based optical systems and networks. For more on the technological aspects of optical CDMA, see Optical Code Division Multiple Access: Fundamentals and Applications (CRC Press 2005).
This book constitutes the refereed postworkshop proceedings of the Fourth Canadian Workshop on Information Theory, held in Lac Delage, Quebec, in May 1995. The book contains 18 revised full papers selected from 30 workshop presentations; also included are three invited contributions. The book is divided into sections on algebraic coding, cryptography and secure communications, decoding methods and techniques, coding and modulation for fading channels, and signal processing and pattern recognition.
