WiMax Operator's Manual

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Telephony in the Millimeter Microwave Bands CHAPTER 3 ■ STRATEGIC PLANNING OF SPECTRUM AND SERVICES 61 Compared to the lower microwave bands, the millimeter microwave region is fairly well suited to doing voice telephony as well as data. The relatively large amounts of bandwidth available means that the operator is not faced with difficult trade-offs involving data services, particularly if IP softswitches are used in lieu of circuit switches. As is the case with data services, the operator should be striving to offer what is not commonly available from the wireline incumbent. IP centrex where PBX-like functionality is offered to small- and medium-sized businesses at reasonable cost is a good example of a new type of service offering that can differentiate the competitive service provider. Grid Computing: The New Killer App? Grid computing is a term for a cooperative arrangement whereby a large number of collaborators make their computing resources intermittently available over a high-speed network for parallel computing applications requiring extremely high computing power. Grid computing is strongly backed by such industry giants as IBM and Sun Microsystems and has seen limited use in the financial industry and in scientific research, both for-profit organizations and academic organizations. Incumbent telecommunications carriers have expressed interest in the concept as embodied in a kind of hosted service offering where the carrier would manage user resources for a fee and ensure security, but to date no carrier has introduced a grid computing service. In certain locales where large numbers of research institutions reside, an enterprising wireless service provider could sell a combination of high-speed point-to-point millimeter microwave links and grid computing services to a small number of high-value users. In the future, you could see grid computing making expert systems possible; a mass subscriber base could use them for various kinds of practical research and for personal reasons. You could, for example, do investment research online and take advantage of the same kind of powerful computing resources used by large firms. All this is highly speculative at present, and I offer it only as possibility and as a stimulus to fresh thinking on the nature of service offerings in the years to come. The ASP Model An application service provider (ASP) is an entity offering hosted services for subscribers. These may include Web hosting and mirroring, storage, data backup and disaster recovering, security, content management, and so on. A few years ago great things were predicted for ASPs, but many failed in the marketplace, and few broadband access providers adopted the model. Perhaps a better model is to attempt to partner with companies such as IBM that offer comprehensive suites of business applications and to act either as a value-added reseller (VAR) or simply a venue for such services. The Carrier’s Carrier Model In the carrier’s carrier service model, the broadband wireless operator resells capacity to others and does not directly sell services or sign up individual subscribers. In general, this has been a low-margin business and one that has not been particularly successful at the metro level,
62 CHAPTER 3 ■ STRATEGIC PLANNING OF SPECTRUM AND SERVICES though it is the established model in the long-distance market. In certain circumstances, ceding capacity to resellers may make business sense, but it limits the profitability that the broadband wireless operator can derive from the network. Looking to the Future: The Importance of a Service Orientation The ability to offer distinct services is the only sure way to differentiate yourself in the broadband marketplace, and the fact that the access providers with the greatest range of services (namely, the cable operators) have also been the most successful is no coincidence. In the future, new offerings will emerge such as location-based services associated with mobility, highly personalized content and reporting services, advanced filtering, and others that have scarcely even been envisioned. Not all new services will be successful, but those that are will serve to position the carriers that have embraced them successfully in the marketplace. Exploring the complete range of services that broadband will support in the midterm and determining their impact is quite impossible in a book of this sort, and I can say only that tracking developments in this area is essential to the long-term health of the broadband wireless service provider. Above all, network operators must come to view themselves as marketing agents and not as public utilities. Public utilities are products of the era of regulated monopoly. In the new era of competition, they are anachronisms.
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WiMax Operator’s Manual Building
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This book is dedicated to my wife.
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Contents About the Author . . . . .
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■CONTENTS ix Performing Site Surv
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■CONTENTS xi Cyberwarfare . . . .
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About the Technical Reviewer ■ROB
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Introduction Broadband wireless has
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CHAPTER 1 ■ ■ ■ Wireless Broa
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CHAPTER 1 ■ WIRELESS BROADBAND AN
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112 CHAPTER 5 ■ STRATEGIES FOR SU
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CHAPTER 6 ■ ■ ■ Beyond Access
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CHAPTER 6 ■ BEYOND ACCESS 133 Rou
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CHAPTER 6 ■ BEYOND ACCESS 135 (Qo
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CHAPTER 6 ■ BEYOND ACCESS 137 The
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CHAPTER 6 ■ BEYOND ACCESS 139 ins
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Figure 6-4. Wireless public network
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CHAPTER 6 ■ BEYOND ACCESS 143 sto
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Specialized Content Distribution Pl
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Beyond the Central Office CHAPTER 6
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CHAPTER 6 ■ BEYOND ACCESS 149 out
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CHAPTER 6 ■ BEYOND ACCESS 151 som
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CHAPTER 7 ■ ■ ■ Service Deplo
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CHAPTER 7 ■ SERVICE DEPLOYMENTS O
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178 CHAPTER 8 ■ NETWORK MANAGEMEN
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CHAPTER 9 ■ ■ ■ Network Secur
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CHAPTER 9 ■ NETWORK SECURITY 189
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Index ■Numbers 2.4GHz to 928MHz b
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asic access and best-effort deliver
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■D dark fiber, features of, 75-76
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harmonics, impact on AC power, 188
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challenges to, 85-86 and NLOS, 121
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PONs (passive optical networks), fe
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signal diversity, providing with ad
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■V VDSL and entertainment service
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