Author details
Author's Published Works
Scheduled Maintenance on Monday 1/13/2025
Single article sales and account management will be unavailable from 5:00 AM - 7:00 PM ET (09:00 - 23:00 UTC). We apologize for the inconvenience.
Author details
Showing 1-25 of 48 results
- Sort
Filter Results
Show
Sort By
Results
Varietal Classification of Rice Seeds Using RGB and Hyperspectral Images
Samson Damilola Fabiyi;Hai Vu;Christos Tachtatzis;Paul Murray;David Harle;Trung Kien Dao;Ivan Andonovic;Jinchang Ren;Stephen Marshall
Inspection of rice seeds is a crucial task for plant nurseries and farmers since it ensures seed quality when growing seedlings. Conventionally, this process is performed by expert inspectors who manually screen large samples of rice seeds to identify their species and assess the cleanness of the batch. In the quest to automate the screening process through machine vision, a variety of approaches ...Show More
Comparative Study of PCA and LDA for Rice Seeds Quality Inspection
Samson Damilola Fabiyi;Hai Vu;Christos Tachtatzis;Paul Murray;David Harle;Trung-Kien Dao;Ivan Andonovic;Jinchang Ren;Stephen Marshall
Contamination of rice seeds affects the crop quality, yield and price. Inspection of rice seeds for purity is a very important step for quality assessment. Promising results have been achieved using hyperspectral imaging (HSI) for classification of rice seeds. However, the relatively high number of spectral features in HSI data continues to pose problems during classification which necessitates th...Show More
Spatial and spectral features utilization on a Hyperspectral imaging system for rice seed varietal purity inspection
Hai Vu;Christos Tachtatzis;Paul Murray;David Harle;Trung Kien Dao;Thi-Lan Le;Ivan Andonovic;Stephen Marshall
2016 IEEE RIVF International Conference on Computing & Communication Technologies, Research, Innovation, and Vision for the Future (RIVF)
Year: 2016 | Conference Paper |
Cited by: Papers (13)
A conventional method to inspect the varietal purity of rice seeds is based on human visual inspection where a random sample is drawn from a batch. This is a tedious, laborious, time consuming and extremely inefficient task. This paper presents an automatic rice seed inspection method using Hyperspectral imaging and machine learning, to automatically detect unwanted seeds from other varieties whic...Show More
Automatic cattle location tracking using image processing
Trung-Kien Dao;Thi-Lan Le;David Harle;Paul Murray;Christos Tachtatzis;Stephen Marshall;Craig Michie;Ivan Andonovic
2015 23rd European Signal Processing Conference (EUSIPCO)
Year: 2015 | Conference Paper |
Cited by: Papers (7)
Behavioural scientists track animal behaviour patterns through the construction of ethograms which detail the activities of cattle over time. To achieve this, scientists currently view video footage from multiple cameras located in and around a pen, which houses the animals, to extract their location and determine their activity. This is a time consuming, laborious task, which could be automated. ...Show More
KernelSOM handover optimisation: Outdoor performance evaluations
2015 International Conference on Computer, Communications, and Control Technology (I4CT)
Year: 2015 | Conference Paper |
A kernel based handover optimisation techniques has been proven to reduce the number of handovers between indoor femtocell and outdoor macro cell by 65%. By suppressing unnecessary handovers, the techniques improve the network performance by detecting area where spurious handovers occurred. This paper presents the applications of this technique on the outdoor scenario between two macro cells. The ...Show More
Parameter Optimization for LTE Handover Using an Advanced SOM Algorithm
Neil Sinclair;David Harle;Ian A. Glover;James Irvine;Robert C. Atkinson
2013 IEEE 77th Vehicular Technology Conference (VTC Spring)
Year: 2013 | Conference Paper |
Cited by: Papers (8)
A novel approach to enhance the robustness of handovers in LTE femtocells is presented. A modified Self Organizing Map is used to allow femtocells to learn about their specific indoor environment including the locations that have prompted handover requests. Optimized handover parameter values are then used that are specific to these locations. This approach reduces both the number of handover fail...Show More
An Advanced SOM Algorithm Applied to Handover Management Within LTE
Neil Sinclair;David Harle;Ian A. Glover;James Irvine;Robert C. Atkinson
A novel approach to handover management for Long-Term Evolution (LTE) femtocells is presented. Within LTE, the use of self-organizing networks (SONs) is included as standard, and handover management is one of its use cases. Base stations can autonomously decide whether handover should take place and assign the values of relevant parameters. Due to the limited range of femtocells, handover requires...Show More
Most on-demand Mobile Ad Hoc Network (MANET) routing schemes typically assume operation over symmetrical and bidirectional routing paths, both of which are not feasible due to the inherent heterogeneous properties of wireless devices. Radio links between a set of wireless devices may be asymmetrical and unidirectional as a result of factors such as high mobility, packet collisions due to interfere...Show More
Quantitative and qualitative network robustness analysis under different multiple failure scenarios
2011 3rd International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)
Year: 2011 | Conference Paper |
Cited by: Papers (2)
Society depends now more strongly than ever on large-scale networks. Failures of great significance have occurred in the last years. Thus, it has become of vital importance to define robustness metrics. Classical robustness analysis has been focused on the evaluation of topological characteristics. In this paper we extend this analysis introducing two new robustness metrics that include traffic se...Show More
QoS-aware routing based on capacity estimation for mobile ad hoc networks
2011 Wireless Advanced
Year: 2011 | Conference Paper |
Mobile ad hoc networks (MANETs) are rapidly evolving and the notion of ad hoc networking has become one of the most challenging research areas of wireless communications. The rising popularity of real-time applications among end users in MANETs has stimulated a surge of research in routing and providing quality of service (QoS) support in such networks. Capacity estimation is a key component of an...Show More
A simulation study on the impact of mobility models on routing protocol performance with unidirectional link presence
The International Conference on Information Networking 2011 (ICOIN2011)
Year: 2011 | Conference Paper |
This paper considers the impact of unidirectional link on Ad-hoc on-demand distance vector routing protocol from a mobility perspective. Most routing protocols assume that all wireless connectivity is symmetrical and bidirectional. Such assumptions are not generally true. Wireless nodes exhibit non-uniform transmission power, non-uniform reception quality and signal to noise ratio which may result...Show More
Downlink TCP performance enhancement at handoff for FMIPv6-enabled nodes
Jorge Espi;Robert Atkinson;David Harle;Ivan Andonovic;Colin Arthur
21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Year: 2010 | Conference Paper |
Cited by: Papers (2)
TCP's downlink performance during FMIPv6-enabled IEEE802.11g handoff is examined. The use of a user-initiated Handoff Notification, sent prior to handoff, is proposed. Therefore, the correspondent node is aware of the handoff-induced disruption, hence avoiding dropping the congestion window size and triggering Fast Retransmission mechanisms. During handoff, it continues to send data packets which ...Show More
Dynamic Reverse Route in Ad Hoc on Demand Distance Vector Routing Protocol
2010 6th International Conference on Wireless and Mobile Communications
Year: 2010 | Conference Paper |
Cited by: Papers (5)
A Mobile Ad hoc Network (MANET) is a heterogeneous network; a collection of mobile wireless devices with different characteristics communicating in a random network topology. Much research over-simplifies by assuming that all nodes are homogeneous, i.e., possess identical transmission power, reception quality and signal to noise ratio, which is not realistic. Such conditions are ideal and not ofte...Show More
This work introduces a Hopfield Neural Network approach to network selection for multihomed hosts which considers a range of relevant network parameters including available radio access technologies and traffic types (VoIP, video streaming, Web browsing and FTP-based). Also proposed is a novel utility function that further improves network selection. Results show that, in terms of QoS, the allocat...Show More
Performance evaluation of multi-path and single-path routing protocols for mobile ad-hoc networks
2008 International Symposium on Performance Evaluation of Computer and Telecommunication Systems
Year: 2008 | Conference Paper |
Cited by: Papers (2)
There is an ambiguous opinion in the literature on whether multi-path routing offers significant merit in terms of a networkpsilas performance. The one camp supports the belief that multi-path routing is indeed advantageous compared to single-path counterparts and the other contends that the improvement is not significant, if at all. For the performance evaluation of the two counterparts, Dynamic ...Show More
Differentiated survivability in a distributed GMPLS-based IP-over-optical network
2008 International Conference on Optical Network Design and Modeling
Year: 2008 | Conference Paper |
Cited by: Papers (2)
A key element of the survivability cost is the amount of the additional capacity embedded in the network for recovery purposes. Generally, Internet service providers (ISPs) have the obvious aim of achieving the required level of survivability with minimum resource consumption and network cost. Therefore, in order to achieve such a challenge, it is necessary to move towards the multilayer different...Show More
SMS: Shortest Multipath Source Routing for Mobile Ad-hoc Networks
2007 IEEE International Conference on Signal Processing and Communications
Year: 2007 | Conference Paper |
In recent years, on-demand multipath routing protocols have been a key research area in mobile ad-hoc networks. Such protocols are crucial in providing resilience to route failures and to successful load balancing. Previous work shows that on-demand multipath routing protocols achieve lower end-to-end delay, routing overheads and higher goodput under certain scenarios when compared to traditional ...Show More
Keeping Order: Determining the Effect of TCP Packet Reordering
International Conference on Networking and Services (ICNS '07)
Year: 2007 | Conference Paper |
Cited by: Papers (11)
Packet reordering over TCP/IP networks is a phenomenon which is becoming increasingly important in network performance analysis. Reordering is a consequence of network equipment manufacturers increasing switch and link level parallelism on the Internet, seeking performance, reliability and economical improvements. This paper presents a methodology for simulating and measuring TCP reordering, provi...Show More
An Holistic Framework for Regular Virtual Topology Design
A bifurcated approach is typically adopted to the regular virtual topology design problem. By exploiting key metrics that affect optimization solutions, it is shown that easily computed parameters, pertaining to the spread in inter-nodal distances and the spread in inter-nodal traffic, are descriptive and appropriate means to characterize problem inputs, the physical topology and the traffic matri...Show More
Partial-Disjoint Multipath Routing for Wireless Ad-hoc Networks
32nd IEEE Conference on Local Computer Networks (LCN 2007)
Year: 2007 | Conference Paper |
Cited by: Papers (7)
On-demand multipath routing in wireless ad-hoc networks can be effective in achieving load balancing over the network and in providing a degree of resilience to route failures. A shortest multipath source routing (SMS) protocol is proposed - a multipath extension to DSR - supporting multimedia applications. The protocol has two novel aspects compared to other on-demand multipath routing protocols:...Show More
Code Flexibility of 2-D Time-Spreading Wavelength-Hopping In OCDMA Systems
The potential performance and successful experimental demonstrations of two-dimensional time-spreading wavelength-hopping (TW) optical code-division multiple access systems have motivated a large volume of research into the development of new TW codes. The choice of the code is crucial in network design since the code not only affects the overall system performance but also sets limits on the phys...Show More
Service Level Agreement Framework for Differentiated Survivability in GMPLS-based IP-over-Optical Networks
David Harle;Saud Albarrak;Fuead Ali;Anna Urra;Eusebi Calle;Jose L. Marzo
2007 IEEE International Conference on Communications
Year: 2007 | Conference Paper |
In the next generation optical internet, GMPLS-based IP-over-optical networks, ISPs will be required to support a wide variety of applications each having their own requirements. These requirements are contracted by means of the SLA. This paper describes a recovery framework that may be included in the SLA contract between ISP and customers in order to provide the required level of survivability. ...Show More
Using Resource Pools for Pre-Signaled Restoration LSP in ASON Networks
2007 IEEE International Conference on Communications
Year: 2007 | Conference Paper |
Cited by: Papers (1)
When considering network restoration, the amount of reserved resources has an important impact on network performance in that it can restrict the acceptance of new connections. Thus, the use of shared resources to support restoration can improve overall network performance. However, efficient resource sharing searches in a global network require extensive computation and database updates. The rest...Show More
Interferometric Noise in Optical Code Division Multiple Access Systems
2006 International Conference on Transparent Optical Networks
Year: 2006 | Conference Paper |
Interferometric noise (IN) (also referred to as beat noise) is one of the most detrimental noise sources in optical code division multiple access (OCDMA) systems dominating the effect of multiple access interference (MAI). General classification of IN is provided supported by survey of OCDMA systems that suffer from beat noise, theoretical framework that permits an assessment of the level of syste...Show More
Performance Analysis of a 2-D Time-wavelength OCDMA Wavelength-Aware Receiver with Beat Noise
2006 International Conference on Transparent Optical Networks
Year: 2006 | Conference Paper |
Cited by: Papers (1)
The effect of beat noise on two-dimensional time-wavelength optical code-division multiple-access systems utilising wavelength-aware receivers is examined. A derivation of a general formula for the bit error probability taking into consideration multiple access interference (MAI) and other noise sources is given. In addition, a comparison between the system performance of such a receiver and the t...Show More
IEEE Account
Purchase Details
Profile Information
Need Help?
- US & Canada: +1 800 678 4333
- Worldwide: +1 732 981 0060
- Contact & Support
- About IEEE Xplore
- Contact Us
- Help
- Accessibility
- Terms of Use
- Nondiscrimination Policy
- Sitemap
- Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.
© Copyright 2025 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.