The impact of disabling suspicious node communications on network lifetime in wireless ad hoc sensor networks

Abstract

Abstract:In wireless sensor networks (WSNs), the data observed by different nodes must be relayed safely to the base station over intermediate nodes. In the network environment, some sensor nodes can act suspiciously when they enter someone else's control or due to other equipment failure. Data packets that are sent through suspicious nodes may be randomly dropped or may be not delivered as desired. In this paper, we investigate the impact of disabling suspicious nodes communications on network lifetime through a linear programming framework. We build a mathematical programming framework and perform comprehensive numerical analysis. Our results show that the decrease in WSN lifetime is less than 8.0% if the number of suspicious nodes is not higher than 10%.

An adaptive scheduling scheme for inhomogeneously distributed wireless ad hoc networks

“…after the proposed exclusion zone implementation, is Λ s = and the corresponding (optimal) density Λ * for DS-CDMA are found as in Eqs. (9) and (10):…”

“…Hence, ad hoc networks have been the leading area of investigation for the last few years [5,[8][9][10].…”

“…The nature of M2M communication requires the MAC protocol to be enforced in an uncomplicated yet effective way that is actually resilient against outages due to nearby interferers. Hence, ad hoc networks have been the leading area of investigation for the last few years [5,[8][9][10].…”