Publications (17)10.76 Total impact
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Article: Programmable on-chip and off-chip network architecture on demand for flexible optical intra-Datacenters.
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ABSTRACT: The paper presents a novel network architecture on demand approach using on-chip and-off chip implementations, enabling programmable, highly efficient and transparent networking, well suited for intra-datacenter communications. The implemented FPGA-based adaptable line-card with on-chip design along with an architecture on demand (AoD) based off-chip flexible switching node, deliver single chip dual L2-Packet/L1-time shared optical network (TSON) server Network Interface Cards (NIC) interconnected through transparent AoD based switch. It enables hitless adaptation between Ethernet over wavelength switched network (EoWSON), and TSON based sub-wavelength switching, providing flexible bitrates, while meeting strict bandwidth, QoS requirements. The on and off-chip performance results show high throughput (9.86Ethernet, 8.68Gbps TSON), high QoS, as well as hitless switch-over.Optics Express 03/2013; 21(5):5475-5480. · 3.59 Impact Factor -
Article: High performance and flexible FPGA-based time shared optical network (TSON) metro node.
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ABSTRACT: The paper presents the architecture, implementation and evaluation of the flexible and finely granular Time Shared Optical Network (TSON) metro node. It focuses on the FPGA-based Layer 2 TSON metro node system. The experimentally measured results show exceptional performance of up to 8.68Gbps throughput per 10Gbps port, 95.38% of theoretical maximum throughput, latency of less than 160μsec and jitter of less than 25μsec. The TSON topology agnostic node/network also delivers differentiated QoS latency levels yet always guaranteed (contention-free) by deploying diverse time-slice allocation schemes.Optics Express 03/2013; 21(5):5499-5504. · 3.59 Impact Factor -
Chapter: High Performance and Flexible FPGA-Based Time Shared Optical Network (TSON) Metro Node
01/2012; , ISBN: 9781557529503 -
Chapter: Network-on-and-off-Chip Architecture on Demand for Flexible Optical Intra-Datacenter Networks
01/2012; , ISBN: 9781557529503 -
Conference Proceeding: High Performance and Flexible FPGA-Based Time Shared Optical Network (TSON) Metro Node
38th European Conference on Optical Communication (ECOC 2012); 01/2012 -
Chapter: Software/Hardware defIned NEtwork (SHINE): A Novel Adaptive Optical Network Framework for Future Internet
01/2012; , ISBN: 9781467314404 -
Conference Proceeding: Network-on-and-off-Chip Architecture on Demand for Flexible Optical Intra-Datacenter Networks
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ABSTRACT: The paper presents a novel network on-and-off chip approach for highly efficient and transparent intra-datacenter communications. The implemented FPGA-based network on-chip line card enables hitless adaptation between Ethernet and TSON, which is supported by a flexible network off-chip of AoD, demonstrating end-to-end high performance results.38th European Conference on Optical Communication (ECOC 2012); 01/2012 -
Conference Proceeding: Software/Hardware defIned NEtwork (SHINE): A Novel Adaptive Optical Network Framework for Future Internet
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ABSTRACT: A novel Software/Hardware defIned NEtwork (SHINE) framework for future optical network is proposed in this paper. An FPGA based SHINE adaptive network element (SANE) carrying time shared optical network (TSON) service and 10G Ethernet service is implemented. A cross-platform C++/Qt based SHINE IDE incorporating fine/coarse granular instruction set is developed to simply compose node/network manually or automatically. Five types of SHINE working flows, i.e. node on demand, network on demand, node self-adaptation, node generation, and network generation, are depicted, then demonstrated and selectively evaluated. Particularly, a hitless switch-over between sub-wavelength service (TSON) and low latency fat pipe service (10G Ethernet) (network on demand), and a receiver automatically detects transmitter?s change (i.e. switch-over from TSON to Ethernet), then adjusts itself (node self-adaption), are highlighted.16th International Conference on Optical Network Design and Modeling (ONDM), 2012; 01/2012 -
Article: Time Shared Optical Network (TSON): a novel metro architecture for flexible multi-granular services.
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ABSTRACT: This paper presents the Time Shared Optical Network (TSON) as metro mesh network architecture for guaranteed, statistically-multiplexed services. TSON proposes a flexible and tunable time-wavelength assignment along with one-way tree-based reservation and node architecture. It delivers guaranteed sub-wavelength and multi-granular network services without wavelength conversion, time-slice interchange and optical buffering. Simulation results demonstrate high network utilization, fast service delivery, and low end-to-end delay on a contention-free sub-wavelength optical transport network. In addition, implementation complexity in terms of Layer 2 aggregation, grooming and optical switching has been evaluated.Optics Express 12/2011; 19(26):B509-14. · 3.59 Impact Factor -
Article: Hardware Accelerated Impairment-Aware Control Plane for Future Optical Networks.
IEEE Communications Letters. 01/2011; 15:1004-1006. -
Article: SIP-enabled Optical Burst Switching architectures and protocols for application-aware optical networks
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ABSTRACT: This paper presents a novel application-aware network architecture for emerging IT services and future Internet applications. It proposes and analyses network architectures that integrate Session Initiation Protocol (SIP) with Optical Burst Switched (OBS) network technology in a unified manner. It demonstrates that the proposed SIP-enabled OBS network can be used to manage application sessions and provide network and IT services according to the application requirements. Furthermore, various SIP over OBS layering architectures, utilizing a number of end-to-end resource discovery protocols (both for network and non-network (IT) resources) are presented and analyzed. Finally, this paper reports on the validation of functionalities, mechanisms and protocols for the proposed SIP-enabled OBS network, from the node level to the network level, through a test-bed demonstrator.Computer Networks. 01/2008; -
Article: Architectural approaches for the integration of the service plane and control plane in optical networks
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ABSTRACT: This paper presents some instantiations of novel application-aware network architectures for emerging IT services and future Internet applications. It proposes and analyses network architectures where the Control and Service Planes are closely and seamlessly interacting with the applications. One instantiation, the Grid-GMPLS (G2MPLS, as defined by the Phosphorus project) is presented, which implements the Network Control Plane (NCP) architecture for the support of Grid Network Services (GNS). The GNS allows the provisioning of network and HPC/Grid resources in a single-step through a set of seamlessly integrated procedures. In a second example of instantiation, a quite popular application in signalling, i.e. the Session Initiation Protocol (SIP), is integrated with the Optical Burst Switched (OBS) network technology. The SIP-enabled OBS network can be used to manage application sessions and provide network and IT services according to application requirements. This paper investigates the requirements that these new integrated architectures impose on supporting network Control and Service Planes, and technologies, and discusses their possible implementations.Optical Switching and Networking. 01/2008; -
Conference Proceeding: Demonstration of Novel Multi-Granular Switch Architecture on an Application-Aware End-to-End Multi-Bit Rate OBS Network Testbed
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ABSTRACT: We demonstrate application-aware bandwidth reservation in an end-to-end multi-bit rate (10 Gbps and 40 Gbps), multi-granular OBS test-bed. This is achieved by hardware implementation and deployment of a hybrid switch based on MEMS and SOA-MZI.33nd European Conference on Optical Communication (ECOC 2007), Postdeadline; 01/2007 -
Article: Experimental demonstration of a self-optimised multi-bit-rate optical network
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ABSTRACT: This paper proposes an innovative self-managed optical network architecture for heterogenous transparent optical networks. A self-optimized dynamic network testbed that comprises multiple multi bit-rate ligthpaths on a mesh topology that utilizes a dark fiber link has been implemented and evaluated. Peer Reviewed Postprint (published version) -
Article: Experimental demonstration of a novel QoS-aware hybrid optical network
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ABSTRACT: This paper presents a hybrid optical test-bed controlled by a hardware-accelerated control plane capable of dynamically provisioning the most suitable route according to the requirements of the client technology and the physical characteristics of the network. Peer Reviewed Postprint (published version) -
Article: Demonstration of C/S based hardware accelerated QoT estimation tool in dynamic impairment-aware optical network
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ABSTRACT: An enhanced version of hardware accelerated QoT estimation tool in impairment-aware optical network is demonstrated and evaluated against the different number of lightpaths and wavelengths per link. It outperforms the software version by 28 times in the order of millisecond. Postprint (published version) -
Article: Demonstration of Application Layer Service Provisioning Integrated on Full-Duplex Optical Burst Switching Network Test-bed
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ABSTRACT: This paper presents an application-aware asynchronous SIP-enabled optical burst switched network demonstrator. Seamless, one-step application session and data layer connection establishment is being demonstrated by publishing, discovering and reserving resources utilising integrated JIT-SIP OBS protocols.
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- Optics Express (3)
Institutions
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2008–2011
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University of Essex
- School of Computer Science and Electronic Engineering
Colchester, ENG, United Kingdom
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