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The following topics were dealt with: routing; security and privacy; forwarding protocols; cooperative communication; disconnection tolerance; network modeling and analysis; sensor coverage; localization and ranging; medium access; topology control; energy management; fault tolerance; IEEE 802.11; IEEE 802.16; wireless sensor networks; and ad hoc networks
We present spiral, a data-centric routing algorithm for short-term communication in unstructured sensor networks. Conventional data-centric routing algorithms are based on flooding or random walk. Flooding returns the shortest route but has a high search cost; random walk has a lower search cost but returns a sub-optimal route. Spiral offers a compromise between these two extremes - it has a lower...
Typical wireless routing protocols like AODV/DSR are not scalable to very large networks because they employ flooding for route discovery. Geographic routing protocols like GPSR are highly scalable because they require minimum control overhead, but depend on idealized link quality models (such as the unit disk model) which are not always applicable. We explore the routing spectrum between these two...
We present geographic multicast routing (GMR), a new multicast routing protocol for wireless sensor networks. GMR manages to preserve the good properties of previous geographic unicast routing schemes while being able to efficiently deliver multicast data messages to multiple destinations. It is a fully-localized algorithm (only needs information provided by neighbors) and it does not require any...
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