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Books : Computing & Internet : Networking & Security : Wireless : WAP
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One way to distinguish a technical book is by the gut feeling it gives its readers. Pekka Niskanen's high-quality Inside WAP makes you feel confident that you can, with study and diligence, make a living developing Wireless Application Protocol (WAP) programs for mobile phones and other wireless devices. The book's explanations of the technologies involved--primarily Wireless Markup Language (WML) and WMLScript--are clear and technically accurate (Niskanen had the support of a technical reviewer from Nokia as well as his own consultancy). You will have absolutely no problem following the author's stepwise approach to his subject languages if you have knowledge of HTML and JavaScript, and very little trouble figuring WAP out if it's the environment for your first effort at application scripting.Niskanen's approach to teaching WML and WMLScript is a popular and proven one. He explains the requirement for a particular language element, shows its general syntax and presents a boiled-down example. Many readers will wish for straight language documentation better suited to alphabetical lookups, but what's here works. You will probably need to acquire--either through education or hired talent--the skills needed to develop the server-side components of your WAP, even though this book does a remarkably good job of introducing Common Gateway Interface (CGI) programming with Java servlets
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Are you tempted to explore the hot new world of Wireless Application Protocol programming? Then WAP in Easy Steps may be just the introduction you are looking for.This clear and easy-to-read guide does an excellent job of explaining how WAP applications work and how to get started as a developer. The most popular developer tool kits are described, all of which are free to download and include mobile phone emulators to test the fruits of your labour. It then goes on to describe in detail all the WML (Wireless Markup Language) and WMLS (Wireless Markup Language Script) features you will need to use. Each language feature is accompanied by clear examples so you can quickly develop your own sophisticated WAP applications and run them on the emulator of your chosen tool kit. There is even a brief introduction to how to run your application from a Web server, and the perils of server-side scripting.
Once the basics have been learned, the would-be professional WAP developer will need more detail than this book attempts to provide; this is an excellent starting point, however, and will give a firm basis on which to develop your skills further. Even the experienced WAP developer will keep this book to hand as a clear and concise language reference. --Andy Wigley
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Alongside any big leap forward in technology, comes a bewildering new selection of abbreviations and acronyms. So it is with the spread of Web applications to mobile devices, with the advent of WAP, SMS and i-Mode. All of a sudden, we see telecommunications professionals grappling with the problems of Web servers and mark-up languages, and computer programmers are found puzzling over the meaning of GPRS, UMTS, CDPD and all the other wireless communications terms being bandied about.Andy Dornan's The Essential Guide to Wireless Communications Applicationsis aimed at that latter group, and is an excellent guide to the major wireless communications technologies in use today, and those that will appear over the next few years. He writes in clear, non-technical language and reading this book will dispel the clouds of confusion over the many three- (and four-) letter abbreviations that litter wireless communications.
Senior editor specialising in wireless technology at Networkmagazine, Andy Dornan is well placed to explain how wireless data communications have developed from the early analogue networks, through to today's 2G and 21/2G digital systems, and onto the high-capacity 3G networks of tomorrow. Along the way, he ensures the reader understands how radio is used to transfer voice and data, takes a look at the Mobile Data Services technologies such as WAP, c-HTML(i-Mode
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This book is subtitled: With WML, WMLScript, ASP, JSP, XML, XLST, WTA , Push and VoiceMail--so you know straight away WAP is just the start of the solution. In fact, as this book is published, neither WTA nor Push works.The authors start with a long panegyric to the wonders of WAP before discussing stack models and other arcana--knowledge of which, quite bluntly, will do little to aid you in developing WAP applications.
WAP development requires development software, including WAP phone (or other device) emulators. Unfortunately, in such a new and fast moving area this was out of date before they finished writing it. This is followed by a discussion on WAP gateways. The section on building and installing WapIT's Kannel WAP gateway under Linux is welcome and there's coverage of the trial version of Nokia's software under WinNT. You're then into application development with WML and WMLScript. Perhaps the funniest example here is the development of a car-buying application. Do the authors really believe anyone would ever buy a car via a text based WAP app on their mobile phone? Bizarre. While the technology examples using ASP, Perl and so on with WML show how to code such apps there is a frightening lack of realism in the examples. Have you ever tried writing an e-mail on a WAP phone? This is not realistic.
In fact, the whole book is about to be overtaken by events as WAP 2.
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If you are a fan of this latest enhancement to GSM mobile phone capability, then Beginning WAP will tell you how to get your "WAP homepage" up and running. Well organised, the book begins with a few introductory chapters on mark up/formatting languages (WML and XML), followed by 15 chapters that take you through a step-by-step look at how to set up a reasonably sophisticated set of functionality. This includes "active" pages using WMLScript, all accessible through simple, text-menus via a mobile phone. There are some example applications that exercise the various mechanisms introduced in the book, eg: a banking application and an online train timetable. A set of fairly comprehensive Appendices also appear at the end of the book, including language specifics for WML and WMLScript.The focus on development tools is within a Windows-based environment but this does not detract from the general usefulness of the book. This reviewer would perhaps disagree with the authors' statement that this book is suitable for non-programmers, however the tutorial style approach of the book explains aspects of programming in a clear manner and most people who have written the odd Web page using simple HTML (or have some very simple experience with programming) should be able to pick this up quite easily.
A nice book to get you started with this technology quickly. --Saleem Bhatti
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The world is going wireless at the moment. So Data Over Wireless Networks can be seen as a timely issue from an experienced author of many other titles in computing and communications.The subtitle of the book lists three specific technologies and these are each described in one chapter of the book, the other chapters covering AMPS (Advanced Mobile Phone Service) and D-AMPS (Digital AMPS)--both of which are used in the US; GSM; CDMA (Code Division Multiple Access); LMDS (Local Multipoint Distribution Service) and MMDS (Multichannel Multipoint Distribution Service). There are also two introductory chapters with some background information.
Overall, the book is reasonable easy to read, with quite a light style. The main chapters are stand-alone and can be read individually. However, reading the book gives no real feeling for how these technologies might be used together (or not, as the case may be). Although every chapter does contain an introduction with some example uses, the book simply gives information about the function and mechanisms specific to the technology with no real discussion or analysis. In addition, the book contains some minor technical errors and seems to have been poorly proof read, as it has a number of typing errors.
The book also seems to have a somewhat confused level of detail. For example, there is a nine-page table in the main text giving the frequen
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