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This paper shows that the relative collision probability for packets in wireless LAN 802.11 networks decreases with increasing load offered by the respective station. This denotes a clearly unfair channel access which is important to be aware of, e.g., when collision probabilities are measured and used for reactive control of contention windows. We model the unfair channel access phenomenon analytically...
Introducing location-awareness in overlay networks allows for a higher efficiency of the offered services, e.g., shorter search times or higher throughput. This is especially important for business applications supported by overlays. In this paper, we will illustrate how such an increase in efficiency causes congestion in an otherwise well-dimensioned locality-aware overlay using a Distributed Hash...
Configuration and management of radio access nodes in beyond 3G (B3G) networks such as nodeBs, wireless LAN or WIMAX access points is a complex task that consumes a high amount of resources. Most configuration changes have to be done by an operator, especially when it comes to the adaption of a node to its environment, i.e., the cells surrounding its own. This is an expensive and inflexible method...
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