Wireless low-power transceivers used in sensor networks such as IEEE 802.15.4 typically operate in unlicensed frequency bands that are subject to external interference from devices transmitting at much higher power. Communication protocols should therefore be designed to be robust against such interference. A critical building block of many protocols at ...Download Now
Link quality estimation has been an active area of research within the wireless sensor network community. It is now well-known that the estimation of reliable links requires few sample packets - less than 10, while the estimation of unreliable links require many more - above 50. In scenarios where unreliable ...Download Now
This paper presents smart-HOP, a reliable hand-off mechanism for mobility support in Wireless Sensor Networks (WSNs). This technique relies on a fuzzy logic approach applied at two levels: the link quality estimation level and the access point selection level. The authors present the conceptual design of smart-HOP and then they ...Download Now
The number of availability-critical Internet applications is steadily increasing. To support the development and operation of such applications, the IETF has recently defined a new standard for a common server redundancy and session failover framework: Reliable Server Pooling (RSerPool). The basic ideas of the RSerPool framework are not entirely new, ...Download Now
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