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What is Soft QoS

Chapter 62
Encyclopedia of Internet Technologies and Applications
A compromising principle of QoS support whereby there may exist transient periods of time when the network is allowed to fall short of QoS requirements, up to a permitted threshold. The level of QoS satisfaction is thus quantified by the fraction of total disruption.
Published in Chapter:
Quality of Service in Mobile Ad Hoc Networks
Winston K.G. Seah (Institute for Infocomm Research, Singapore) and Hwee-Xian Tan (National University of Singapore, Singapore)
Copyright: © 2008 |Pages: 8
DOI: 10.4018/978-1-59140-993-9.ch062
Abstract
Mobile ad hoc networks (MANETs) form a class of multi-hop wireless networks that can easily be deployed on-the-fly. These are autonomous systems that do not require existing infrastructure; each participating node in the network acts as a host as well as a packet-forwarding router. In addition to the difficulties experienced by conventional wireless networks, such as wireless interference, noise and obstructions from the environment, hidden/exposed terminal problems, and limited physical security, MANETs are also characterized by dynamically changing network topology and energy constraints.
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