A5023008510- Underwater Vehicles and Communication Systems
- Energy Efficient Wireless Sensor Networks
- Energy Harvesting in Wireless Networks
- Indoor and Outdoor Localization Technologies
- Bluetooth and Wireless Communication Technologies
- Water Quality Monitoring Technologies
- Advanced Wireless Network Optimization
- Underwater Acoustics Research
- Image and Video Quality Assessment
- Advanced MIMO Systems Optimization
- IoT and Edge/Fog Computing
- IPv6, Mobility, Handover, Networks, Security
- Network Traffic and Congestion Control
- Wireless Communication Networks Research
- Image Enhancement Techniques
- Embedded Systems Design Techniques
- Multimedia Communication and Technology
- Satellite Communication Systems
- Wireless Body Area Networks
- Smart Cities and Technologies
- Telecommunications and Broadcasting Technologies
- Power Line Communications and Noise
- Smart Grid Security and Resilience
- Smart Grid Energy Management
- Context-Aware Activity Recognition Systems
Universidad de Málaga
2012-2021
Institute of Business Management
2013
Underwater Acoustic Sensor Networks (UASN) have two important limitations: a very aggressive (marine) environment, and the use of acoustic signals. This means that techniques for terrestrial wireless sensor networks (WSN) are not applicable. paper proposes routing protocol called "Self-Organizing Scalable Routing Protocol" (SOSRP) which is decentralized based on tables residing in each node. A combination hop value to collector node distance used as criterion create routes leading sink The...
Underwater wireless sensor networks (UWSNs) are a promising technology to provide oceanographers with environmental data in real time. Suitable network topologies monitor estuaries formed by strings coming together sink node. This may be understood as an oriented graph. A number of MAC techniques can used UWSNs, but Spatial-TDMA is preferred for fixed networks. In this paper, scheduling procedure obtain the optimal fair frame presented, under ideal conditions synchronization and transmission...
The enormous increase in cellular users requires novel advancements the existing infrastructure. Therefore, small cell networks (SCNs) are a promising solution to meet ever-growing demands of as they beneficial terms coverage and providing higher data rates. However, one challenging parts is deployment base stations (SBs) their connectivity with backhaul network. In this paper, we use scalable idea replacing terrestrial network an aerial provide fronthaul SBs. particular, address optimum...
Underwater video services could be a key application in the better scientific knowledge of vast oceanic resources our planet. However, limitations capacity current available technology for underwater networks (UWSNs) raise question feasibility these services. When transmitting video, main constraints are limited bandwidth and high propagation delays. At same time service performance depends on needs target group. This paper considers problems estimations Mean Opinion Score (a standard...
In this work, a multi-hop string network with single sink node is analyzed. A periodic optimal scheduling for TDMA operation that considers the characteristic long propagation delay of underwater acoustic channel presented. This planning transmissions obtained help new geometrical method based on 2D lattice in space-time domain. order to evaluate performance scheduling, two service policies have been compared: FIFO and Round-Robin. Simulation results, including achievable throughput, packet...
Electromagnetic (EM) waves cannot propagate more than few meters in sea water due to the high absorption rate. Acoustic are suitable for underwater communication, but they travel very slowly compared EM waves. The typical speed of acoustic is 1500 m/s, whereas air approximately 3 × 108 m/s. Therefore, terrestrial wireless sensor network (WSN) protocols assume that propagation delay negligible. Hence, reactive deemed acceptable WSNs. Other important issues related networks (UWSNs) determining...
This paper presents an end-to-end Quality of Service (QoS) model for assessing the performance data services over networks with wireless access. The proposed deals degradation across protocol layers using a bottom-up strategy, starting physical layer and moving on up to application layer. approach makes it possible analytically assess at different layers, thereby facilitating optimization process. As representative case, scenario where set mobile terminals connected streaming server through...
An underwater wireless sensor networks (UWSNs) is an emerging technology for environmental monitoring and surveillance. One of the side effects low propagation speed acoustic waves that routing protocols terrestrial are not applicable. To address this problem, strategies focused on different aspects have been proposed: location free, based, opportunistic, cluster energy efficient, etc. These mechanisms usually require measuring additional parameters, such as angle arrival signal or depth...
Video services are meant to be a fundamental tool in the development of oceanic research. The current technology for underwater networks (UWNs) imposes strong constraints transmission capacity since only severely limited bitrate is available. However, previous studies have shown that quality experience (QoE) enough ocean scientists consider service useful, although perceived can change significantly small ranges variation video parameters. In this context, objective assessment (VQA) methods...
M2M (Machine to Machine) communications enable many new applications that reduce the costs of maintenance and operation via remote monitoring control. The forecasts for this type predict traffic increases associated with these devices about 100% in coming years. However, behaviour is different from human user, which causes stress on networks due overload signalling procedures. This paper reviews literature current scenario, projections decade, improvements LTE (Long Term Evolution) will...