Service Location Protocol Research Articles

Dynamic Context Awareness of Universal Middleware based for IoT SNMP Service Platform

This study focused on the Universal Middleware design for the IoT (Internet of Things) service gateway for the implementation module of the convergence platform. Recently, IoT service gateway including convergence platform could be supported on dynamic module system that is required mounting and recognized intelligent status with the remote network protocol. These awareness concepts support the dynamic environment of the cross-platform distributed computing technology is supported by these idea as a Universal Middleware for network substitution. Distribution system commonly used in recent embedded systems include CORBA (Common Object Request Broker Architecture), RMI (Remote Method Invocation), DCE (Distributed Computing Environment) for dynamic service interface, and suggested implementations of a device object context. However, the aforementioned technologies do not support each standardization of application services, communication protocols, and data, but are also limited in supporting inter-system scalability. In particular, in order to configure an IoT service module, the system can be simplified, and an independent service module can be configured as long as it can support the standardization of modules based on hardware and software components. This paper proposed a design method for Universal Middleware that, by providing IoT modules and service gateways with scalability for configuring operating system configuration, may be utilized as an alternative. This design could be a standardized interface provisioning way for hardware and software components as convergence services, and providing a framework for system construction. Universal Middleware Framework could be presented and dynamic environment standardization module of network protocols, various application service modules such as JINI (Apache River), UPnP (Universal Plug & Play), SLP (Service Location Protocol) bundles that provide communication facilities, and persistence data module. In this IoT gateway, management for based Universal Middleware framework support and available for each management operation, application service component could be cross-executed over SNMP (Simple Network Management Protocol) version 1, version 2, and version 3. The way of SNMP extension service modules are conducted cross-support each module and independent system meta-information that could be built life cycle management component through the MIB (Management Information Base) information unit analysis. Therefore, the MIB role of relation with the Dispatcher applied to support multiple concurrent SNMP messages by receiving incoming messages and managing the transfer of PDU (Protocol Data Unit) between the RFC 1906 network in this study. Results of the study revealed utilizing Universal Middleware that dynamic situations of context objects with mechanisms and tools to publish information could be consisted of IoT to standardize module interfaces to external service clients as a convergence between hardware and software platforms.

An Evaluation of Ubiquitous Service Discovery and Remote Management in Ad-Hoc Networks

Due to the rise of ubiquitous computing, issues around the discovery of new services have become a hot topic in the academic community. This is because futuristic ubiquitous computing frameworks as well as unsupervised Ad hoc systems will require service discovery. Automatically discovering network services and their characteristics, as well as dynamically advertising their persistence, are both possible with service discovery. Multiple service discovery technologies, including Service Discovery Protocols (SDP) runners, Universal Plug and Play (UPnP), Service Location Protocol (SLP), and Jini, have been suggested. In this paper, we detail the process of service discovery and control using Ubiquitous Remote Manager (URM), a system for remote and autonomous management of home gateways that allows for more system simplicity and finer grained command of the underlying network in a ubiquitous computing setting. Ubiquitous Service Discovery (USD) is a key component of the infrastructure of the smart homes of the future. USD's goal is to locate the most suitable service, given the user's preferences and needs, in a pervasive and extensive setting.

Cryptographic key distribution using artificial intelligence for data security and location privacy in VANET

Location privacy & data security in VANET are now becoming most important in today’s paradigm of information age. Unauthorized access to location information of vehicles may pose a significant security threat, thus it is necessary to secure this information from intruders. In proposed work, Artificial intelligence based RF range approximation is used with multi key controlled cryptography for enhancement of location privacy and data security in service location protocol of VANET’S.

Transmit Range Adjustment Using Artificial Intelligence for Enhancement of Location Privacy and Data Security in Service Location Protocol of VANET

IoT or the internet of things is the talk of the town topic being researched in the field of information technology for more than decade. It is being in deployment stage in various developing economics, to enable driverless automobiles in the field of VANET. It helps in preventing crashes and provides urgent medical assistance in emergency case. Data security and location privacy are becoming of most importance in present IT scenario. Unauthorized access to location information of vehicles may pose a significant security threat. So, it is necessary to secure the location information of the vehicle. The proposed work aims at enhancement of location privacy data security in service location protocol of VANET’S. The primary techniques to be employed include artificial intelligence-based RF range approximation for transmission range adjustment and receive RF strength based distance estimation for trusted node location perimeters approximation, dynamic adjustment of silence period of OBU (on based unit) in conjunction with radio/RF interrupt. The unauthorized access to location information of vehicles and need of its privacy is the motivation for this work.

Performance evaluation and comparison study of adaptive MANET service location and discovery protocols for highly dynamic environments

A critical requirement in Mobile Ad Hoc Networks (MANETs) is its ability to automatically discover existing services as well as their locations. Several solutions have been proposed in various communication domains which could be classified into two categories: (1) directory based, and (2) directory-less. The former is efficient but suffers from the amount of control messages being exchanged to maintain all directories in an agile environment. However, the latter approach attempts to reduce the amount of control messages to update directories, by simply sending broadcast messages to discover services; which is also a non-desirable approach in MANETs. This research work builds on top of our prior work (Nazeeruddin et al. in IFIP/IEEE international conference on management of multimedia networks and services, Springer, Berlin, 2006)) where we introduced a new efficient protocol for service discovery in MANETs (MSLD); a lightweight, robust, scalable, and flexible protocol which supports node heterogeneity and dynamically adapts to network changes while not flooding the network with extra protocol messages—a major challenge in today’s network environments, such as Internet of Things (IoT). Extensive simulations study was conducted on MSLD to: (1) initially evaluate its performance in terms of latency, service availability, and overhead messages, then (2) compare its performance to Dir-Based, Dir-less, and PDP protocols under various network conditions. For most performance metrics, simulation results show that MSLD outperforms Dir-Based, Dir-less, and PDP by either matching or achieving high service availability, low service discovery latency, and considerably less communication overhead.

Evolutionary Study of Service Location Protocol

This paper describes the Evolutionary study of Service Location Protocol. There are many discovery protocols developed by the researchers but SLP is the most extensively researched, tested, utilized, flexible, reliable, scalable, lightweight and standardized discovery protocols. Service Location Protocol is discussed briefly in this paper along with its working. The Evolution of SLP is discussed from its origin to its applicability in different research areas till date.

Comparative study of various protocols of DDS

In this paper the comparison of various protocols of Dynamic Discovery Service is studied. This paper outlines the initiatives focused on discussing and understanding various DDS protocols on the basis of their common features. The comparison is structured by taking various features as the base for this comparison. Service Discovery Protocol (SDP), Jini, Salutation, Service Location Protocol (SLP), Secure Pervasive Discovery Protocol (SPDP), Universal Discovery Description and Integration (UDDI), and Universal Plug and Play (UPnP) are discussed briefly in this paper.

Integrated service discovery architecture for heterogeneous networks

SummaryThe discovery and management of desired network services present significant challenges for mobile networks. Based on the Service Location Protocol, this paper proposes an integrated service discovery architecture for vehicular ad hoc networks. The proposed approach divides the network into several logical zones. The zone structure is formed virtually based on position information. Each logical zone may have a zone directory agent to manage registered services from service providers. The proposed architecture considers both vehicle‐to‐infrastructure and vehicle‐to‐vehicle communication modes and introduces roadside directory agents and vehicle directory agents to reduce deployment costs. We also introduce a substitute query technique, cache mechanism, and backup mechanism to improve the request hit ratio and reduce the message overhead of the substitute query. Finally, we implement the proposed mechanisms in Network Simulator version 2, with simulation results showing that the proposed architecture can provide a high average data hit ratio and low message overhead. Copyright © 2016 John Wiley & Sons, Ltd.

Enhancing OSGi Framework for Enterprise Distributed Systems

Recently, OSGi has been used in many areas of smart phones, software applications, and home network. However, it cannot be used for enterprise distributed systems because it does not have auto-managing schema for them and does not provide a backup strategy. A service location protocol which is a dynamic configurations protocol can be used to auto-manage the distributed systems, but the protocol cannot ensure the stability of distributed systems. In this paper, we present a technique of automated service discovery in distributed systems based on OSGi. The proposed technique defines four components and four type profiles to achieve automated service discovery and backup functions. By using the technique, OSGi could be widely used for developing enterprise distributed systems.

Location service and session mobility for streaming media applications in home networks

In the near future, home networks are expected to become an important part of the user's ubiquitous environment. However, how to provide service discovery and multimedia services in such networks becomes a great challenge. In the paper, we propose an extension header, referred to as the “MediaService” header, into the Session Initiation Protocol to provide video streaming service. The streaming control and session mobility functions are also considered in the MediaService header. We also propose a peer to peer Service Location Protocol architecture for users to search for location of services across domains. We added a Substitute Request Message and cache policy into the Service Location Protocol to search for location of services across domains. A prototype implementation shows the performance of our prototype.

Adaptive Square-Shaped Trajectory-Based Service Location Protocol in Wireless Sensor Networks

In this paper we propose an adaptive square-shaped trajectory (ASST)-based service location method to ensure load scalability in wireless sensor networks. This first establishes a square-shaped trajectory over the nodes that surround a target point computed by the hash function and any user can access it, using the hash. Both the width and the size of the trajectory are dynamically adjustable, depending on the number of queries made to the service information on the trajectory. The number of sensor nodes on the trajectory varies in proportion to the changing trajectory shape, allowing high loads to be distributed around the hot spot area.

Enabling dynamic data centers with a smart bare-metal server platform

Ever increasing data center complexity poses a significant burden on IT administrators. This burden can become unbearable without the help of self-managed systems that monitor themselves and automatically modify their state in order to carry out business processes according to high level objectives set by service level agreements (SLA) and policies. Among the key IT management tasks that must be automated and enhanced to realize the idea of an autonomic and highly dynamic data center, are discovery, configuration, and provisioning of new servers. In this direction, this paper describes pre-boot capabilities endowing the bare metal server with the ability to be discovered, queried, configured, and provisioned at time zero using industry standards like Common Information Model (CIM), CIM-XML, and Service Location Protocol (SLP). The capabilities are implemented as a payload of an Intel® Extensible Firmware Interface (EFI)-compliant BIOS, the Intel® Rapid Boot Toolkit (IRBT), allowing a resource manager to discover a new server during pre-boot, possibly in a bare-metal state, and then perform an asset inventory, configure the server including CPU-specific settings, and provision it with the most appropriate image. All these tasks may be carried out based on decisions taken by the resource manager according to server capabilities, application requirements, SLAs, and high-level policies. Additionally, this system uses reliable protocols, thus minimizing error possibilities. Future work is proposed, including the integration of a persistent hypervisor for enhanced management capabilities.

A NEW 4G ARCHITECTURE PROVIDING MULTIMODE TERMINALS ALWAYS BEST CONNECTED SERVICES

In recent years, wireless communication technology has undergone a tremendous change. Various radio access technologies have been deployed all over the world. The 4G mobile system was proposed to integrate all of these radio access technologies into a common network called the open wireless architecture (OWA) platform. As one of the main features of a 4G mobile system, always best connected (ABC) services enable users to choose the best available access networks in a way that best suits their needs. A new architecture capable of supporting ABC service is proposed in this study. There are three parts to the proposed architecture. First, a novel access discovery mechanism that integrates service location protocol and location-based service is presented. Second, a new personalized network selection scheme is put forward. Users can select their personalized "best" network by changing weight factors and constraints in a single objective optimization problem. Third, a seamless handover mechanism based on Mobile IPv6 is proposed. The mechanism supports end-to-end quality of service. Through analysis, this architecture demonstrates that it has benefits not only for network operators, but also for users

Service Location Protocols for mobile wireless ad hoc networks

As service-oriented networks are essential in our lives, service location, access and location provisioning over wired and wireless networks will govern users' satisfaction. We, therefore, present several approaches to service location in ad hoc networks: distributed broadcast query; query via service co-ordinators (SC); a hybrid combination. We also evaluated these approaches in terms of service availability (SA) and control overhead under variable network sizes and mobility scenarios. Simulation results showed that the distributed query approach suffered from high control overhead. The SC based approach provides a more scalable architecture by providing different service areas. Finally, the hybrid approach provided greater flexibility and robustness.

Architecture for reliable service discovery and delivery in manets based on power management employing slp extensions

Limited energy resources and mobility issues affect the topology of ad hoc networks and introduce difficulties in service discovery. The high possibility of a link breakdown due to low energy supplies in a ubiquitous computing environment, such as a mobile ad hoc network (MANET), raises service-provider selection issues with regard to achieving the best possible service reliability. Every node requiring a specific service must choose a provider under certain criteria. This article provides an overview of standardized service-discovery and delivery solutions. In addition, a novel architecture is proposed which provides the ability to select a service provider by taking into account metrics such as the power supplies of the service provider and concomitant path towards the destination. The proposed algorithm is decentralized and based on service location protocol version 2 (SLPvZ) extensions

Service Discovery in Ad Hoc Networks: Performance Evaluation and QoS Enhancement

With the increasing popularity of wireless portable devices, such as laptops, PDAs and mobile phones, it is getting more and more important for mobile users to discover their required resources (e.g. printers and fax machines) without any need of configurations. To this end, automatic service discovery is an important feature of mobile Ad Hoc networks (Manets). In this paper a service discovery protocol for Manets based on the IETF Service Location Protocol has been implemented in the NS-2 simulator. Its performance is studied under different mobility patterns, network sizes and number of service agents. A lightweight quality of service (QoS) aware service discovery protocol is also proposed to support QoS applications.

A Database Service Discovery Model for Mobile Agents

One of the main challenges of mobile agent technology is how to locate hosts that provide services requested by mobile agents. Traditional service location protocols can be applied to mobile agent systems in order to explore the service discovery issue. However, because of their architecture deficiencies, they adequately do not solve all the problems that arise in a dynamic domain such as database location discovery. From this point of view, we need some enhanced service discovery techniques for the mobile agent community. This article proposes a new model for solving the database service location problem in the domain of mobile agents by implementing a service discovery module based on search engine techniques. As a typical interface provided by a mobile agent server, the service discovery module improves the decision ability of mobile agents with respect to information retrieval. This research is part of the IMAGO system, an infrastructure for mobile agent applications. This article focuses on the design of an independent search engine, IMAGOSearch, and discusses how to integrate service discovery into the IMAGO system, thus providing a global scope service location tool for intelligent mobile agents.

Enhancing Service Location Protocol for efficiency, scalability and advanced discovery

This paper presents three new mechanisms for the Service Location Protocol (SLP): mesh enhancement, preference filters and global attributes. The mesh enhancement simplifies Service Agent (SA) registrations and improves consistency among Directory Agents (DAs) by defining an interaction scheme for DAs and supporting automatic registration distribution among peer DAs. Preference filters facilitate processing of search results (e.g., finding the best match) in SLP servers (DAs and SAs) to reduce the amount of data transferred to the client for saving network bandwidth. Global attributes allow using a single query to search services across multiple types. These mechanisms can improve SLP efficiency and scalability and support advanced discovery such as discovering multi-access-point services and multi-function devices. We expect that these techniques can also be applied to other service discovery systems.

An autonomic failure-detection algorithm

Designs for distributed systems must consider the possibility that failures will arise and must adopt specific failure detection strategies. We describe and analyze a self-regulating failure-detection algorithm that bounds resource usage and failure-detection latency, while automatically reassigning resources to improve failure-detection latency as system size decreases. We apply the algorithm to (1) Jini leasing, (2) service registration in the Service Location Protocol (SLP), and (3) SLP service polling

Topics in in-how networking - Ubiquitous computing in home networks

In the past decade, there have been numerous efforts in ubiquitous. computing. For home networks, we believe that ubiquitous computing requires a global-scale system that is securable, administered by, multiple independent nonspecialist administrators, and integrates off-the-shelf hardware and software. In this system every home owner acts as an administrator of the network in the home. We are developing such a system based on the Session Initiation Protocol (SIP), with Bluetooth devices for location sensing and the Service Location Protocol (SLP) for service discovery. We also introduce context-aware location information to augment device discovery bind user communication. The system builds on our CINEMA infrastructure.