A Non-heuristic Approach for Minimizing the Energy and Power Consumption in Wireless Multimedia Sensor Networks

Abstract

Several challenges exist in case of wireless multimedia sensor networks. Out of those challenges, data redundancy is a major problem that is encountered in these networks. When any sort of event takes place in an area of interest, it is initially detected by the scalars. Subsequently, the concerned scalars communicate their reading to their respective cameras, within whose depth of fields the scalars lay. Then the cameras collaboratively decide which among them are to be activated. However, the problem is that when event takes place sensing of occurring event occurs within the event region as well as up to some extra area outside the exact event region. As a result, the cameras present outside the exact event area are activated unnecessarily due to the sensing of occurring event outside event region. Since sensing of event occurs up to certain extent outside event region, therefore the scalars which lay outside the exact event region as well as inside the sensing range of event sense the event. This is due to the coverage of sensing area of occurring event by the sensing range of some of the scalars. Due to the sensing of event by these scalars, the concerned camera sensors are activated unnecessarily. Hence, energy consumption as well as power consumption occurs unnecessarily. Our objective is to minimize this unnecessary energy and power consumption, which can be achieved by keeping the concerned cameras those are present outside the exact event region but inside sensing range of event in turned off condition.

Enhanced Event Coverage and Redundant Data Minimization Employing Pentagonal Scalar Premier Selection in Wireless Multimedia Sensor Networks (WMSNs)

“…We have conducted the performance analysis of our proffered PSPN-OA method by taking results of three other approaches currently emerged recently [3,4,5]. They include: DCA-SC [3], N-H [4], DCCA-SM [5] methods and proffered PSPN-OA.…”

“…Here, the cameras collectively make decision regarding their activation. Likewise, the approach discussed in [4] devised a Non-Heuristic (N-H) scheme aimed at lowering the Energy as well as Power expenditure prevailing in case of WMSNs. This strategy is focused on making the camera sensors activated unnecessarily in off condition and at the same time diminishing the amount of redundant data transmittal owing to such cameras.…”

Redundant data minimisation using hexagonal scalar premier neighbourhood for optimum camera actuation scheme

“…The DCA‐SC [1] and DCCA‐SM [2] approaches as discussed earlier consider the actuation of cameras while minimising the amount of redundant data transmitted. Furthermore, another work done in [3] minimises the amount of unnecessary energy and power consumption by actuating reduced number of cameras. Moreover, it also provides the ways of activating the cameras those covering the exact event region for eliminating the amount of redundant data transmitted due to unnecessary actuation of cameras.…”

Centralised cum sub‐centralised scheme for multi‐event coverage and optimum camera activation in wireless multimedia sensor networks

“…However, the approach used in [3] activates only the required cameras for single event occurrence. A non‐heuristic approach discussed in [4] is an enhancement of [3]. The basic difference between [3, 4] is that in case of [4] threshold values are taken while considering the camera activation.…”

“…A non‐heuristic approach discussed in [4] is an enhancement of [3]. The basic difference between [3, 4] is that in case of [4] threshold values are taken while considering the camera activation. Similarly, another work [5] considers the case of minimum camera activation and it also discusses the way energy as well as power consumption are minimised.…”