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Present research work propose the design of a low energy and high throughput, hierarchical clustering based routing protocol for smart home sensor network application. Proposed protocol perform dynamic cluster head selection based on multiple node characteristics like node residual energy, node distance from sink and node average distance from neighbour nodes. Cluster head distribution is even and...
Recently emerging wireless sensor technologies integrate different types of sensor nodes in a network for information collection. The heterogeneous Wireless Sensor Network (WSN) imposes complex design challenges as nodes in such a network often have different requirements in terms of latency and bandwidth. Therefore, the channel access for nodes needs to be managed ensuring differentiated quality...
With the advancement in energy harvesting in terms of wireless charging techniques, it provides a novel way to solve traditional energy constraint problems in Wireless Sensor Networks (WSNs). Renewable energy such as solar, wind, and geo-thermal energy is converted to energy-storage and further use via harvest-then-transmit strategy. This article introduces a two-layer sleep scheduling system in energy-harvesting...
The interference attack or better known as jamming attacks are very easy to implement affecting the service of any wireless communication system given the vulnerability of data sent to the user. This attack by denying the normal operation of the service detracts from the purpose of these systems. In general, a jamming attack is difficult to detect given the little experimental data provided by the...
Multilayer Clustered Designing Algorithm is exploited to present MCDA - Hot Spot algorithm; a technique to increase the network throughput by alleviating the impact of hotspot issue on network lifetime. The network nodes in the hot spot region are in a flat layer form in contrast to rest of the network nodes that are grouped into clusters. This design substantially helps in achieving goal above. This...
Low Power Wide Area Networks (LPWAN) technologies have recently triggered many research efforts and standardization activities due to the inherent possibility of both providing long range wireless communications and guaranteeing a long life for very cheap sensing devices. At the same time, the increasing interest of telco operators into such kind of networks is due to the wide range of applications...
Energy harvesting has been gaining a lot of attention in the past decade due to its ability to provide a-virtually-endless energy supply. Nodes in a Wireless Powered Communication Network (WPCN) depend, totally or partially, on the energy harvested from the Central Node (CN) which has a constant power supply. This work addresses a solution to the problem of lack of fairness in the distribution of...
Automation of modern industrial plants require real-time tracking of object locations and sensing of local and ambient parameters for variety of applications such as counting and tracking of objects in assembly line, detection and positioning of failures of machines etc. Mostly, discrete Real Time Location System (RTLS) performs object tracking in existing industrial automation without its integration...
This paper investigates resource allocation in a multi-user, multi-band and multi-antenna equipped wireless communication system, which is used for simultaneous wireless information and power transmission (SWIPT). The optimization problems of sum-rate over multiple sub-bands subject to the power spectral density requirement (PSDR) limit and the circuit power requirement (CPR) are studied in the case...
Wi-Fi enabled hand-held devices have quickly occupied the consumer market as a result of the remarkable customer acceptance of IEEE 802.11 standard. In this regard, the demand of high throughput introduces high throughput standards such as IEEE 802.11ac. It supports Dynamic Bandwidth Channel Access (DBCA), where a wireless station selects channel bandwidth dynamically based on the availability of...
In a Wireless Sensor Network (WSN), there are a large number of nodes whose power supply and computational capability are limited. The nodes in a wireless sensor network can be fixed or move randomly. Thus in these networks, to forward a data packet from one node to another needs to use specific strategies with very different characteristics. Accordingly the data forwarding strategy among nodes plays...
To improve the performances of wireless sensor network (WSN) and its lifetime, the management of power consumption and the energy harvesting is crucial. In this paper, we propose an energy-harvested management mechanism (EH2M) for WSN, in order to minimize the duty-cycle on the basis of the present amount remaining energy. With EH2M, each sensor node can adjust its duty-cycle dynamically by computing...
IEEE 802.11 WLANs use carrier sense multiple access with collision avoidance (CSMA/CA) to initiate the Request to Send / Clear to Send (RTS/CTS) handshaking mechanism that solves the hidden node problem. However RTS/CTS also causes the exposed node problem where a node is unnecessarily prevented from accessing the wireless channel even when such access will not disrupt another nodes ongoing transmission...
Wireless sensor networks (WSNs) have been widely studied for decades due to their superior characteristics and promising applications. However, multi-hop WSNs suffer from serious collisions caused by hidden terminals, resulting in the decline of network performance and lifetime. Contention-free media access control (MAC) protocols can strictly avoid conflicts through channel resource partitioning...
Wireless communications play a significant role in the spread of the Internet Of Things (loT). While all machines try to connect to the IoT and exchange data, wireless communications offer freedom of movement and demand of minimum infrastructure. The main obstacles that wireless communications face are the limited source of power and the short range of coverage. This paper highlights all the available...
Multi Criteria Decision Making (MCDM) is useful for choosing a possible objective. The objective is to investigate how far TOPSIS method of MCDM can be utilized for delay sensitive network selection problem. In this paper, TOPSIS method is used for taking decision in delay sensitive network selection for achieving reliability of network selection with Wireless Body Area Network (WBAN) parameters;...
Low-Rate Wireless Sensor Networks (LR-WSNs) has become an active area of research in recent decades. ZigBee is a wireless standard based on IEEE 802.15.4 for LR-WSNs. Since in Zigbee networks energy is one of the most vital issues, the routing protocols must be energy efficient. By default, ZigBee uses an Ad hoc On-Demand Distance Vector (AODV) routing protocol. In AODV, broadcasting is the backbone...
Energy consumption problem is considered an extremely important problem that faces the Wireless Sensor Networks (WSNs). For this reason, a lot of efficient energy protocols have been developed in order to reduce the energy consumption, as well as to prolong the lifetime of the sensor networks. The DMHT-LEACH protocol is one of these protocols. It proposes a dynamic technique for facilitating the data...
With the advent of Internet of Things IoT, it is expected that the growth of Wireless Sensor Networks WSN will increase exponentially as it provides a medium for IoT to sense the real-world environment. The increase on the number WSN nodes will result in deteriorating performance at Medium Access Control MAC layer. This paper provides a review on the recent applications of Machine Learning to improve...
Nowadays in wireless network the energy consumption and sensor node energy renewable is major challenge. Which make sensor network weak and more critical. The problem of node reachability is considered and Amended Ant colony optimization technique is proposed for optimization. The proposed technique is used for the search of estimated solutions to distinct and endless optimization problems and for...
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