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What is Group Communication

Chapter 48
Handbook of Research in Mobile Business, Second Edition: Technical, Methodological and Social Perspectives
A group communication system guarantees all the replicas in the same process group to receive the same set of messages in the same total order within the virtual synchrony model. The group communication system depends on the use of an unreliable failure detector.
Published in Chapter:
Increasing the Performability of Wireless Web Services
Wenbing Zhao (Cleveland State University, USA)
Copyright: © 2009 |Pages: 11
DOI: 10.4018/978-1-60566-156-8.ch048
Abstract
Wireless Web services are becoming a reality, if they have not already. The unique characteristics of the mobile devices and wireless communication medium, such as limited computing power, limited network bandwidth, limited battery life, unpredictable online time, mobility, and so forth,, imply that the infrastructure for wireless Web services will be very different from its wired counterpart. This chapter discusses the challenges and the stateof- the-art solutions to ensure highly performable wireless Web services. In particular, this chapter’s focus is on three technical issues: optimization of the wireless Web services messaging protocol, caching, and fault tolerance. Finally, limitations of the current approaches and an outline of future research directions on wireless Web services are also discussed.
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