Effect of node distributions on lifetime of Wireless Sensor Networks

Abstract

Wireless Sensor Networks has recently become an attractive research topic due to the rapidly growing field of applications. This paper focuses on prolonging network lifetime by investigating different node deployments including both geometric and uniform. Geometric distributions resulted in a 35.6% increase in lifetime as opposed to random distributions. Furthermore, different sink locations were examined. The optimum sink location introduced a considerable lifetime elongation compared to the previously used location.

An Energy-Efficient Motion Strategy for Mobile Sensors in Mixed Wireless Sensor Networks

“…As a result, one of the most important issues to consider in the implementation of a static WSN is energy-efficient coverage (EEC). Many algorithms have been proposed to conserve energy and prolong the network's lifetime [1][2][3][4][5]. Among these algorithms, scheduling methods have been shown to be effective in reducing energy consumption by planning the activities of the devices [6][7][8][9].…”

WSN lifetime prolongation for deterministic distributions using a hierarchical routing protocol

“…Uniform distribution is one of the most common distributions that are more adequate for a lot of applications such as chemical and nuclear sensing systems [11,14]. Hence, this section focuses on the effect of using clustering technique on the lifetime of the uniform distribution using the same network parameters in [10][11] as shown in Table I. It is assumed that the network consists of N uniformly distributed nodes over the network area and the network is divided into K clusters.…”

“…Star topology is one of the most popular geometric distributions used in networks [11,14,16]. It was found in [11] that star distribution is the most efficient distribution that gives the highest lifetime compared to the other distributions.…”

“…The distributions studied in this paper are among the most popular deterministic distributions [11]. The network is divided into clusters and the CHs collect the data and send them to the sink.…”

Node Deployment and Mobile Sinks for Wireless Sensor Networks Lifetime Improvement

“…Geometric distributions of sensors are studied next as well as different fixed sink locations. More details about these issues can be found in (Botros et al, 2009;Nouh et al, 2010).…”