This paper discusses several distributed poweraware routing protocols in wireless ad-hoc networks (especially sensor networks). We seek to optimize the lifetime of the network. We have developed three distributed power-aware algorithms and analyzed their efficiency in terms of the number of message broadcasts and the overall network lifetime modeled as the time to the first message that can not...

Abstruct-QoS-constrained routing is considered as one of the key components to support quality of service in next-generation data networks. However, optimal routing problem subject to multiple constraints is NPhard in general. In this paper we propose a technique called “smart forwarding” which can be used in both distributed hop-by-hop QOS routing and centralized source-based routing. It enabl...

Sensor networks, due to their applicability, have been attracting a considerable amount of attention in the research community recently. The limited resources available for the sensors (like memory, energy, etc.) pose significant challenges in building routing infrastructures for sensor networks. The ad hoc nature of the sensor networks also present challenges in fault tolerance. This paper dis...