MANET (Mobile Ad-Hoc Network) has a dynamic topology. Due to the mobility of nodes in the network of cooperative communication is a technique for archived greater efficiency of transmission. In this paper the Network Lifetime has been improved using Cross layer Distributed Energy Adaptive Location based Cooperative MAC protocols. This DEL-CMAC protocol has been increases the network lifetime an...

A mobile sensor network is a wireless network of sensor nodes that move arbitrarily. In this paper, we explore the use of a maximum stability spanning tree-based data gathering (Max.Stability-DG) algorithm and a minimum-distance spanning tree-based data gathering (MST-DG) algorithm for mobile sensor networks. We analyze the impact of these two algorithms on the node failure times, specifically ...

We address the problem of maximizing the lifetime in a wireless sensor network with energy-constrained sensor nodes and mobile data collection points (sinks). Information generated by the monitoring sensors needs to be routed efficiently to the location where the sink is currently located across multiple hops with different transmission energy requirements. We exploit the capability of the sink...

Major applications of Wireless sensor networks (WSNs) are monitoring and tracking. The large numbers of sensors are deployed in remote and inaccessible places therefore deployment and maintenance should be easy and scalable. Sensors have limited battery backup as they are small in size. The energy is a critical factor in order to extend the lifetime of the network as nodes once deployed cannot ...

When a sensor network is deployed, we fundamentally care about three main outcomes: to obtain as much data as possible (high delivery rate), to obtain data as fast as possible (low latency), and to obtain data for as long as possible (long lifetime). This last metric, called network lifetime, is of great importance and has been widely investigated because sensor nodes are usually battery-operat...

With the rise and precision of current medical procedures and the healthy lifestyles of many individuals turning towards a healthier lifestyle, the average lifetime expectancy is ever increasing [1]. Doctors are able to better diagnose and treat patients while the ability of individuals to cope and recover from illnesses is staggering. Technological advances incorporated with vast and accurate ...

Achieving dependability in large scale infrastructure systems always requires making intelligent tradeoffs. This paper proposes QAPSL, a systematic approach to making such tradeoffs with regards to application state management. We identify Quality, Availability, Performance, Security, and Lifetime as a set of fundamental state properties that can be traded against each other. We then describe a...

In wireless sensor networks (WSNs), the energy hole problem is a key factor affecting the network lifetime. In a circular multi-hop sensor network (modeled as concentric coronas), the optimal transmission ranges of all coronas can effectively improve network lifetime. In this paper, we investigate WSNs with non-uniform maximum transmission ranges, where sensor nodes deployed in different region...