Radhakrishna Pillai

Radhakrishna Pillai
Indian Institute of Management, Kozhikode · Faculty of Information Systems

BTech, ME, PhD

About

61
Publications
21,121
Reads
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277
Citations
Introduction
ICT and its social impact, sustainability, Ethics, Green Computing
Education
January 1989 - December 1993
Indian Institute of Science
Field of study
  • Communication Networks
July 1987 - January 1989

Publications

Publications (61)
Article
The ubiquitous nature of ICT makes it an inevitable choice to address economic growth of a nation. The literature indicates a positive significance of ICT on economic growth, but intensity of the usage of ICT highly depends on the nature of the society. This study uses the perspective that sustained usage of ICT is highly dependent on various facto...
Article
Full-text available
With several studies investigating the adoption of Green IT and the factors that lead to its successful adoption, it is important to look into the continuity of Green IT initiatives in the long run. We investigate the factors that contribute to the continuity of Green IT efforts using resource-based explanations and a natural resource-based view. W...
Article
Human development is one of the prominent factors that captures the essence of livelihoods in societies. In the current information era, the unprecedented reach and diffusion of information and communication technologies (ICT) to the remotest countries of the world make it a catalyst to achieve the desired target of human development. But ICT canno...
Article
The study conducts a country-level examination of the impact of information and communication technologies (ICTs) on sustainable development. Sustainable development is an agenda that global countries are determined to achieve. The ubiquitous nature of ICT and the benefits it accrues make it an inevitable choice to address the sustainable developme...
Article
Green Information Technology (Green IT) emerged as a critical research agenda for reducing organizations' carbon footprints to achieve environmental sustainability. This paper aims to understand the factors that affect the adoption of Green Information Technology in the context of a developing country. Studies that have focused on both individual a...
Chapter
UN Sustainable Development Goals (SDG) is an initiative of the United Nations to provide a technical and operational fit process for the achievement of sustainable development across the globe. Government and NGOs primarily cater to either of the aspects of sustainable development, but they lack infrastructure and capability. The public policies, t...
Chapter
Digital marketplaces are disrupting the established traditional marketplace models and transforming the economy and societies in India, by providing a platform for innovations. This disruption impacts drastically the way Indians’ shop, bank, work, book their holidays, and even hailing a cab. India’s unique demographic dividend with 50% of the 1.2 b...
Article
Full-text available
This paper explores the effect of Green Information Systems (Green IS) practices on Green innovations and how corporations gain competitive advantages through better performance of Green innovations (both process and product). Results based on IT firms in India indicate that Green innovation performance mediates the effect between Green IS and comp...
Conference Paper
Green Information Technology (IT) is the study of environment friendly practices in the IT context. Science and technology has brought in many benefits over the years but we failed to see the environmental degradation that is happening due to anthropogenic activities. In recent times, there exists an enthusiasm in sustainable activities among peopl...
Article
This article proposes a model for managing e-waste in India using systems thinking approach. The plot of the article begins by the idea of reducing the environmental pollution caused by e-waste in the hands of the informal sector. This can be done by formalizing the disposal stage of the electronic products. The idea can reap results when the regis...
Article
Standardization, prototyping and application of unidirectional bus networks are introduced followed by a detailed description of Distributed Queue Dual Bus Medium Access Control (DQDB MAC) protocol. A review of throughput analysis and delay performance of the MAC protocol along with a survey of related literature is presented.
Article
The Fiber Distributed Data Interface (FDDI) is a proposed American National Standard for a 100 Mbps token ring using an optical fiber medium. The timed token protocol used in FDDI allows the integration of digital voice, video, interactive data communications and large file transfers over the same network. The performance of the protocol has been s...
Article
Integrated Services Digital Networks (ISDN) will play an increasingly important role in the field of communications in the coming few decades. This paper discusses the design and implementation of a pilot narrowband ISDN. A personal computer (PC) based ISDN user terminal and a time/space switch with the facility for the transmission of voice (at 64...
Article
Full-text available
Crises are common in the modern world and the value system of leaders plays a crucial role in effectively managing the crises. The role of self-managing leadership in crisis management is explored in this article. An empirical study is conducted to understand the effectiveness of the ancient self-management technique called Rajayoga. It is based on...
Conference Paper
The past few decades have witnessed an exponential growth in the volume and intensity of socio- economic and ethical consequences of misuse of information technology. The internet era and the development of new technologies for P2P sharing have led to new opportunities for ethical breaches like digital piracy. Digital piracy, also known as soft-lif...
Chapter
Green IT has taken the IT industry by storm and organizations need to be most flexible to accommodate the technologies that prevail in the industry. Green technologies emerge at a very fast rate and organizations need to adopt quickly to keep a competitive edge. IS flexibility plays an important role in aligning its architectures and systems with t...
Article
Over the last decade, the concern of environmental issues has gained special attention and businesses are taking initiatives to reduce their carbon footprints. Information Technology has its ubiquitous presence in most of the business process and it offers a potential means to tackle the environmental issues, thereby increasing the process efficien...
Article
Full-text available
Cloud computing is emerging as a powerful computing paradigm with its aim of efficient resource utilization and contribution to Green IT. However, the decision of shifting to cloud computing always remains risky from customer's perspective considering the benefits they would attain by doing so. The extant research on cloud computing focuses more on...
Article
Cloud Computing is emerging as a promising cost efficient computing paradigm which professionals believe is an absolutely new trend and will represent next level of internet evolution. Though the presence of Cloud computing is ubiquitous, it still lacks consensus on a proper definition and classification of the major Clouds in effect today. It also...
Article
Extant Green IT practices and reports reveal that many organizations implementing Green IT face the problem of sustaining Green IT initiatives to gain long term advantage. This study attempts to address the issue by proposing a sustainability model for Green IT initiatives. It evaluates longitudinal changes in Green IT environmental performance of...
Conference Paper
In order to accommodate the new generation of Internet applications, routers need to be designed to support QoS, policy based management, and mobility. This paper presents architecture for the control plane of a software router that integrates signaling protocols and control mechanisms for QoS, policy based management, and mobile IP. The architectu...
Conference Paper
Full-text available
In future wireless networks, different traffic classes will exhibit a large variety of characteristics and QoS requirements, such as transmission rate, maximum tolerable bit error rate and timeout specifications. However, currently there is no standard way of guaranteeing QoS in wireless access networks like wireless LAN based on IEEE 802.11. In th...
Article
Full-text available
This paper presents a mobile ad hoc network bridging method which routes data packets at the data link layer instead of at the IP network layer. This method includes two major steps. Firstly, a set of bridges that can span the entire network is elected among all the nodes in the network based on node's two-hop neighborhood information. The data pac...
Article
The interference between retransmissions at the Logical Link Control (LLC) protocol and the Transmission Control Protocol (TCP) in a General Packet Radio Services (GPRS) network is studied in this paper by means of simulations. The factors that contribute to the TCP/LLC protocol interference are discussed. The results show that in the presence of w...
Conference Paper
Full-text available
This paper reports the design, implementation, and performance evaluation of a policy based QoS management system for the IntServ/DiffServ based Internet which is based on COPS for interfacing with the network device and on LDAP for interfacing with a directory for storing policies. The design is based on distributed components and CORBA is used as...
Conference Paper
In future wireless networks, different traffic classes will exhibit a large variety of characteristics and QoS requirements, such as transmission rate, maximum tolerable bit error rate and timeout specifications. However, currently there is no standard way of guaranteeing QoS in wireless access networks like wireless LAN based on IEEE 802.11. In th...
Article
Full-text available
As communication networks provide newer services, signaling is becoming more and more compute intensive compared to present day networks. It is known that under overload conditions, the call throughput (goodput) and the network revenue drops to zero even when transport resources are available. A distributed overload control algorithm for delay-boun...
Article
Abstract The impact of ATM cell delays on multimedia,application performance,is studied through measurements,using a broadband,network analyser. A method,is developed,to measure,the ATM cell delays of an application using the analyser. It is found that the cell delay distribution becomes,continuous as the traffic load on a connection becomes,lighte...
Article
In this paper, the design, prototyping and performance evaluation of a CORBA-based handoff signalling system is discussed. The wireless terminal communicates with the base stations using UNI 4.0 signaling augmented by handoff control messages. The base stations then call on the services provided by a Handoff Manager CORBA entity that performs the h...
Article
This paper reports the design, implementation, and performance evaluation of a CORBA based distributed control architecture for signalling and mobility management in the Wireless ATM Research project (WARP). The distributed control architecture makes use of open signalling to manipulate the various network resources to realise network services such...
Conference Paper
It is important that applications deployed in wireless networks be robust enough to accommodate different kinds of data losses due to link errors, connection re-routing, and network congestion. A scheme to improve the robustness of MPEG based video applications is proposed. Under this scheme, the packet size at the sender is optimized to the MPEG s...
Conference Paper
Full-text available
Real-time MPEG-2 video transport applications do not usually have the luxury of a reverse channel for recovering from any errors that might occur during communication. Degradation in quality of decoded video frames is immediately apparent in the presence of errors in headers. In this paper, we focus on protecting header information by replicating i...
Article
Full-text available
The increasing complexities of modern networks coupled with the popularity of multimedia applications have placed higher demands on network managers. This paper reviews the main requirements and challenges for effective management of multimedia networks, presents a case study of a thin-client-based multimedia system called CSL (Computer-supported L...
Article
Full-text available
The steady state throughput performance of distributed applications deployed in switched networks in presence of end-system bottlenecks is studied in this paper. The effect of various limitations at an end-system is modelled as an equivalent transmission capacity limitation. A class of distributed applications is characterised by a static traffic d...
Article
The Singapore National High-speed ATM Testbed and some of the management issues are highlighted in this paper. In order to achieveinter-operability between di#erent vendor's ATM equipments, it is often necessary to create Permanent Virtual Circuits #PVCs#. The design and implementation of a PVC management system for the testbed is reported. It uses...
Article
Full-text available
In this paper, the design, prototyping and performance evaluation of a CORBA based handoff signalling system is discussed. The wireless terminal communicates with the base stations using UNI 4.0 Signalling augmented by handoff control messages. The base stations then call on the services provided by the Handoff Manager, a CORBA entity that performs...
Conference Paper
The increasing complexities of modern networks coupled with the popularity of wireless-based solutions have placed higher demands on network managers. The traditional solutions based on rigid protocols and platform-based systems need to be complemented with solutions that allow flexibility and the use of lightweight protocols and configurations at...
Conference Paper
The notion of wireless ATM (WATM) is fast gaining prominence as the technology for supporting wireless mobile multimedia communications. In this paper, we share our experience in the design, implementation and experimentation of a distributed open network control architecture for WATM networks based on the open signaling paradigm. The proposed arch...
Article
Asynchronous Transfer Mode (ATM) is widely accepted as the transfer mode for Broadband Integrated Services Digital Networks (B-ISDN). As ATM networks provide connection-oriented services, signalling is an essential component of these networks. The performance of the signalling system is crucial in determining the scalability of the network. Call pe...
Conference Paper
This paper reviews the signalling and mobility management issues in wireless ATM networks and explains how some of those issues are addressed in the Wireless ATM Research Project (WARP) (Acharya and Raychaudhury, 1996) using a new approach to network signalling called open signalling (Acharya et al., 1997)
Chapter
This paper reports the design, implementation, and performance evaluation of a CORBA based distributed control architecture for mobile ATM networks. The distributed control architecture makes use of open signalling to manipulate the various network resources to realize network services such as call control, multicast, and mobility management. Open...
Conference Paper
This paper reports the design, implementation, and performance evaluation of a CORBA based distributed control architecture for mobile ATM networks. The distributed control architecture makes use of open signalling to manipulate the various network resources to realize network services such as call control, multicast, and mobility management. Open...
Conference Paper
Full-text available
The scheduling at an ATM access point is modelled as a stochastic control problem and an optimal scheduling policy is obtained for equalising the input buffer contents in the case of two inputs with unequal arrival rates. The optimal policy is work conserving, and it serves the longer queue when the queue lengths are unequal and serves the queue wi...
Article
The architectural reference point for our workis a reference model which associates functionality withoperational planes along three orthogonalabstractedmodels. Within the context of this reference model a service management model is proposed. Themodel makes use of APIs for communicating managementinformation between a management application and se...
Conference Paper
The paper discusses the motivation, requirements, and the emerging technologies to carry multimedia services over the Internet
Chapter
Full-text available
The protocol is described. Packet access delay is the sum of request bus access delay and data bus access delay. An upper bound on data bus access delay is obtained that is equal to twice the propagation delay from the node to the most upstream node. The expected request bus access delay for Poisson offered traffic is the expected waiting time in a...
Article
FDDI (Fibre Distributed Data Interface) is a 100 Mbit/s token ring network with two counter rotating optical rings. In this paper various possible faults (like lost token, link failures, etc.) are considered, and fault detection and the ring recovery process in case of a failure and the reliability mechanisms provided are studied. We suggest a new...
Conference Paper
Stations may be attached to nodes on a high speed communication network through lower speed local networks or input/output channels. The capacity limitation of the low speed bidirectional channel that is to be shared for transmission and reception of packets between a station and its node can affect performance. Reception is assumed to be given hig...
Article
Full-text available
This paper reports the performance evaluation of the CORBA based programmable control architectures designed and implemented in the Wireless ATM Research Project 2 . The distributed control architecture makes use of open signalling 3 to manipulate various network resources and to realize network services such as call control, multicast, and mobilit...
Article
Data Types5.2.1 Route5.2.1.1 IDL Specificationstruct RouteNode {Address node_address;short input_port;short output_port;};typedef sequence Route;5.2.1.2 DescriptionRoue is a sequence of RouteNodes, each of which identifies a single node and its input and outputports.5.3 The RM Interface5.3.1 IDL Specificationtypdef string Location;interface RouteMa...
Article
Abstract Asynchronous,Transfer Mode (ATM) is widely accepted as the transfer mode,for Broadband Integrated Services Digital Networks (BISDN). As ATM networks provide connection-oriented services, signalling is an essential component of these networks. The performance of the signalling system is crucial in determining the scalability of the network....

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Projects (4)