BKPCSDCT.RVW 970817 "PCS & Digital Cellular Technologies", Rifaat A. Dayem, 1997, 0-13-616574-5 %A Rifaat A. Dayem %C One Lake St., Upper Saddle River, NJ 07458 %D 1997 %G 0-13-616574-5 %I Prentice Hall %O 800-576-3800 201-236-7139 fax: 201-236-7131 %O betsy_carey@prenhall.com %P 231 %T "PCS & Digital Cellular Technologies: Assessing Your options" Recently, I was asked to provide more coverage of books dealing with mobile communications, and the emerging technologies therein. I was rather loathe to get deeply into the field, and responded that most such works tended to be dense with equations and studded with graphs of antenna signal strength. Such tomes may be fine for telecommunications engineers, who probably know all of them already, but are less than helpful to the average technical user or manager who needs to gain a general understanding of what is going on and what the issues are. Dayem's book is certainly far from perfect, in that regard, but it is the best general explanation I have seen to date. Written by a knowledgeable and involved participant in the field, it is aimed at the non-specialist audience. The various technologies are explained, and the technical issues and problems are described, usually without recourse to technical arcana. The approaches being taken in different countries and regions are clarified, and a list of manufacturers is given in an appendix. The material is generally readable, practical, and understandable. The technical level, while usually intended for the average reader, is inconsistent. The discussion of propagation and channel fading does get into extensive formulae, although this is mercifully brief. On the other hand, the explanation of CDMA (Code Division Multiple Access) is a complete failure. Both the glossary and index are very short and have serious shortcomings, especially in view of Dayem's tendency to use acronyms long before they are defined. Mistakes such as "Shanon's Theorem" make even the technically literate wonder if they are missing something. Overall, this is a very useful guide to the features, strengths, and weaknesses of the many new and emerging technologies that telecommunications managers are having to face. Dayem does provide a helpful reference to the spate of new offerings coming to market, and to the alphabet soup accompanying them. copyright Robert M. Slade, 1997 BKPCSDCT.RVW 970817