In large networks, a data source may not reach the intended sink in a single hop, thereby
requiring the traffic to be routed via multiple hops. An optimized choice of such routing path …

This paper presents and evaluates two principles for wireless routing protocols. The first is
datapath validation: data traffic quickly discovers and fixes routing inconsistencies. The …

We present empirical measurements of the packet delivery performance of the latest sensor
platforms: Micaz and Telos motes. In this article, we present observations that have …

Geographical routing is a prominent area of research in wireless networks where route
establishment is based on known locations of wireless nodes. The location may be an exact …

We consider the problem of estimating link quality in an ad-hoc wireless mesh. We argue
that estimating links well requires combining information from the network, link, and physical …

We describe CTP, a collection routing protocol for wireless sensor networks. CTP uses three
techniques to provide efficient, robust, and reliable routing in highly dynamic network …

Wireless sensor networks (WSNs) are increasingly proposed for applications characterized
by many-to-many communication, where multiple sources report their data to multiple sinks …

This paper provides a novel implementation of the intelligent water drops (IWD) method for
resolving data aggregation issues in heterogeneous wireless sensor networks (WSN). When …

Existing routing protocols for sensor networks ei-ther exclusively focus on collection-based
traffic, or optimize for point-to-point traffic in a homogeneous network. As these networks …

We study the ubiquitous data collection for mobile users in wireless sensor networks. People
with handheld devices can easily interact with the network and collect data. We propose a …