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With the growing complexity of personal mobile communication systems demanding higher data-rates and high levels of integration using low-cost CMOS technology, overall system performance has become more sensitive to RF analog front-end impairments. Designing integrated transceivers requires a thorough understanding of the whole transceiver chain including RF analog front-end and digital baseband. Communication system engineers have to include RF analog imperfections in their simulation benches in order to study and quantify their impact on the system performance. Here the author explores key RF analog impairments in a transceiver and demonstrates how to model their impact from a communication system design view-point. He discusses the design aspects of the front end of transceivers (both receivers and transmitters) and provides the reader with a way to optimize a complex mixed-signal platform by taking into account the characteristics of the RF/analog front-end. Key features of this book include: Practical examples illustrated by system simulation results based on WiFi and mobile WiMAX OFDM transceivers An overview of the digital estimation and compensation of the RF analog impairments such as power amplifier distortion, quadrature imbalance, and carrier and sampling frequency offsets An exposition of the challenges involved in the design of both RF analog circuits and DSP communication circuits in deep submicron CMOS technology MATLAB® codes for RF analog impairments models hosted on the companion website Uniquely the book bridges the gap between RFIC design specification needs and communication systems simulation, offering readers RF analog impairments modeling knowledge and a comprehensive approach to unifying theory and practice in system modelling. It is of great value to communication systems and DSP engineers and graduate students who design communication processing engines, RF/analog systems and IC design engineers involved in the design of communication platforms.

Language Development and Language Impairment offers a problem-based introduction to the assessment and treatment of a wide variety of childhood language developmental disorders. Focuses for the most part on the pre-school years, the period during which the foundations for language development are laid Uses a problem-based approach, designed to motivate students to find the information they need to identify and explore learning issues that a particular speech or language issue raises Examines the development of a child’s phonological system, the growth of vocabulary, the development of grammar, and issues related to conversational and narrative competence Integrates information on typical and atypical language development

There has been an explosion of studies in the field of genetic hearing impairment in the past decade, associated with major advances in our understanding of the mechanisms and conditions involved. However, a recent review has highlighted the very limited number of studies on the effects of such hearing impairment on the individuals and families of those concerned. In The Effects of Genetic Hearing Impairment in the Family, under the aegis of the European Union GENDEAF programme, the editors have taken the first steps to address this deficit in our knowledge and understanding of this topic. The book addresses the problem by secondary analyses of existing large scale population studies, by prospective investigation of individuals with a family history of hearing impairment and by specific studies on patients with otosclerosis and neurofibromatosis 2 and their families. In addition several chapters look at the specific impact of deaf culture, ethnicity and religion on reactions to deafness and the specific needs in genetic counselling. This book represents an important first step in this field and should be an invaluable resource for all professionals involved with people with hearing impairments.

Psychological Well-being and Acquired Communication Impairments is an essential resource for all health professionals working with this complex client group. It offers a unique multi-disciplinary approach to the subject, looking at the evidence base as well as clinical practice. The book covers both the assessment of people with acquired communication impairments as well as reviewing the available interventional approaches. Chapters cover such key topics as approaches to the assessment of anxiety and depression, the impact of brain injury, the role of an assessment of mood and the role of self esteem.

Learning Disability and other Intellectual Impairments is the first book of its kind to explore the similarities and parallels between the needs of people with various types of intellectual impairments as they encounter health services. It not only looks at the shared issues from a bio-psycho-social perspective, but also discusses the transferable skills that a practitioner can develop working across these groups. It identifies the key skills and knowledge that professionals need in order to work with intellectually impaired patients whether they are in the hospital or at home. Rather than just focusing on people with learning disabilities, this text attempts to break down barriers and look at some of the issues associated with care and treatment of people who have intellectual impairment for a variety of reasons, including acquired brain injury, dementia and long-term mental health issues where cognition has been affected. Learning Disability and other Intellectual Impairments is suitable for health care practitioners at all levels who work with people who have intellectual impairments in their work and who wish to further develop their skills and knowledge to care for this neglected client group.