Indian Institute of Management IIM

Kolkata, India

Indian Institute of Management IIM

Kolkata, India
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Goyal M.,Indian Institute of Management IIM | Goyal M.,Indian Institute of Technology Delhi | Dujari H.,Indian Institute of Management IIM | Dujari H.,Institute of Engineering and Management | Misra S.,Stanford University
Energy Policy | Year: 2012

India has experienced a peak power deficit of more than 12% in the last decade. In order to reduce the deficit, policymakers initiated a new energy planning policy through the introduction of Ultra Mega Power Projects (UMPP). However, since the introduction of UMPP Policy in 2006, a number of instances have exhibited the limitations in its implementation and its inability to adapt to changes in the external factors. These limitations have ranged from a change in the bidding guidelines post awarding of project; to external threats such as regulatory changes in a foreign country. This paper attempts to draw learning from issues in the implementation of UMPP policy through short case discussions. The authors subsequently illustrate the issues faced during implementation and actions taken by the Government; and suggest possible measures to resolve these issues. © 2012 Elsevier Ltd.

Sadhukhan S.K.,Indian Institute of Management IIM | Tiwari U.,Jadavpur University | Agarwal V.,Jadavpur University | Agrawal V.,Jadavpur University | Venkateswaran P.,Jadavpur University
Proceedings - 2012 3rd International Conference on Emerging Applications of Information Technology, EAIT 2012 | Year: 2012

As the subscriber numbers soar and traffic load increases in the network, operators face various challenges during post planning stages of their network. One such post planning problem relates to minimizing of total handoff cost in a cellular network. This is solved by making some Radio Network Controllers (RNCs) dual homed [4]. Conventionally UMTS networks are single homed in which one RNC is connected to one MSC/SGSN. In dual homed network one RNC can be connected to at most two MSCs/SGSNs. In this paper, we have proposed a scheme for handoff management in dual homed network. We have modified the existing protocol related to Iu-PS interface to incorporate the handoff handling in a dual homed network. It has been shown that when the RNC is dual homed, approximately four commands are not required thus saving the handoff handling cost. It is found that little changes in the existing 3GPP specified mobility management protocol in the single homed network is needed to take care of handoff management effectively under the dual homing scenario of RNC. © 2012 IEEE.

Sadhukhan S.K.,Indian Institute of Management IIM | Venkateswaran P.,Jadavpur University | Saha D.,Indian Institute of Management IIM
Proceedings - 4th International Conference on Emerging Applications of Information Technology, EAIT 2014 | Year: 2014

Location management in cellular communication refers to location update (LU) and location search (LS) (or, commonly known as paging). LU requires occasional update of the entries corresponding to an MT in its location registers (LRs), namely home LR (HLR) and visiting LR (VLR). LS consists of two sub-processes: (i) pre-paging-probe (PPP) - to identify the paging area, in which the MT currently resides, using the HLR/VLR entries created by LUs, and (ii) paging - to page the identified area. Since decrease in LU frequency increases LS effort, and vice versa, good location management techniques attempt to optimize the total signalling cost due to LU plus LS in the network. A recent paper [1] has reduced the LU cost by a novel pointer forwarding mechanism, wherein the previous VLR keeps a forward pointer to the current VLR instead of updating the HLR when an MT changes the VLR. This process creates a chain of forwarding pointers through VLRs, if the MT changes multiple VLRs. Though this technique reduces costly HLR updates, a relatively lengthy VLR traversal takes place, using the forward pointer chain, to locate the current VLR during the LS for the MT. Thus, due to successive probing through the chain of pointers, the PPP cost increases. To avoid this problem, our proposed LU technique restricts the chain length to unity so that PPP cost remains constant. We do so by introducing the concept of a home VLR in line with the home agent concept of mobile IP. The home VLR acts like a pseudo-HLR for the MT, thereby reducing costly HLR updates too. Our LU scheme can adopt various HLR update strategy (e.g., movement based update, or cell-sojourn time based update). Using simulation, we find that the reduction in PPP cost, with respect to [1], becomes more significant as the call-to-mobility ratio (CMR) increases. Further simulation study reveals that our proposed technique is best suited for diurnal mobility [7] of an MT, and there it reduces both LU and LS costs considerably. © 2014 IEEE.

Parthasarathy S.,Thiagarajar College of Engineering | Sharma S.,Indian Institute of Management IIM
Computers in Industry | Year: 2014

An enterprise resource planning (ERP) system is an information system that supports and integrates many facets of a business. A critical issue in ERP implementation is how to bridge the gap between the ERP system and an organization's business processes by customizing either the system, or the business processes of the organization, or both. Literature review shows that customization is a major hindrance in most of the ERP implementation projects. This research applies nominal group technique (NGT) and analytical hierarchy process (AHP) techniques to Luo and Strong's framework to help organizations determine feasible customization choices for their ERP implementation initiatives. A case study is presented to illustrate its applicability in practice. The study has theoretical and practical implications for our understanding of ERP implementation process. © 2014 Elsevier B.V.

Srivastava P.R.,Indian Institute of Management IIM
Computers and Electrical Engineering | Year: 2014

Printed Circuit Boards (PCBs) are extensively used in the simplest electronic products. Inside, the PCB holes play a significant and important role. Holes through a PCB are typically drilled with small-diameter drill bits made of solid coated tungsten carbide. Drilling is done in a Printed Circuit Board to make holes at different points on it and is done by a robot drill to complete the whole assembly, which is frequently a bottleneck in an assembly line. Organizing and optimizing PCB drill route process is still open area of research. In this regards this paper uses the one of the newly developed heuristic technique i.e. Intelligent Water Drop (IWD) Algorithm to optimize the PCB drill routing process. The proposed method described here stands out for its ability to converge quickly using less number of iterations for the routing problem, limited use of computation resources and highly extensible for future development in robot type of application. © 2014 Elsevier Ltd.

Verma R.,Indian Institute of Management IIM | Rajagopal,Monterrey Institute of Technology
Journal of Transnational Management | Year: 2013

Firms carrying innovative business architecture reap substantial benefits by differentiating from competitors and getting competitive advantage in terms of technology, knowledge, and networks. The authors investigate various strategic marketing frameworks by reviewing the existing literature on service innovation architecture. In order to drive efficiency in services marketing, the article puts forward service shell paradigm to investigate the role of various actors of market competitiveness and address how service firms can effectively harmonize various drivers of innovativeness with firm sustainability. The article contributes to the marketing literature by delivering new insights on services management through the shell paradigm and proposing strategic guidelines in the emerging business context. © 2013 Copyright Taylor and Francis Group, LLC.

Srivastava P.R.,Indian Institute of Management IIM
Proceedings - 8th International Conference on Advanced Software Engineering and Its Applications, ASEA 2015 | Year: 2015

The judicial system needs a revamp and the Lokpal system has been put forward as a solution to all problems pertaining to corruption. However, there is need to ensure that the Lokpal also does not succumb to the same functional shortcomings as the judicial system. To deal with this, this paper proposes a robust appraisal system to evaluate the performance of the employees. Several metrics have been identified and their values will be used to calculate the appraisal value for an employee. This value will be fed in the agent based simulation of the Lokpal model, in order to assess the severity of corruption. © 2015 IEEE.

Goyal M.,Indian Institute of Management IIM | Goyal M.,Indian Institute of Technology Delhi
Renewable and Sustainable Energy Reviews | Year: 2010

Indian wind energy sector has seen a CAGR of more than 27% during the period 2002-2007. However, the annual capacity additions has been declining for the past 2 years and recently, India lost one place in the Global ranking on total installed wind capacity to China. While issues like unfavourable tariff, non-uniform state policies, unavailability of evacuation infrastructure, etc. can be attributed to the slower pace of capacity addition, the issue of unavailability of on-shore wind sites with sufficiently high wind velocity is expected to take centre stage in the next 2-3 years. Wind sites with low wind velocity make the investment unattractive to developers. Given the current situation, repowering as an investment option, which has already seen favourable response in countries like Germany and Denmark, would start maturing in India. This paper analyzes the present situation of the wind energy in India, evaluates the different wind energy market segments including repowering market, provides financial highlights of the repowering concept and ends with concluding remarks on major triggers which can set this concept in motion. © 2010 Elsevier Ltd. All rights reserved.

Singh S.,Indian Institute of Management IIM
Acta Horticulturae | Year: 2010

Linking small producers with markets has been identified as one of the major issues in policy and practice in improving livelihoods for millions of poor in the developing world. Small producers have many competitive advantages like lower costs, but they face threats from the demand for standardised products in global and national markets, and large volume requirements of modern markets. However, there are opportunities in organic, fair and ethical trade markets, which are particularly suited for small producers and which offer higher prices. There have been numerous experiments by different stakeholders across the developing world, including India, in linking small primary horticultural producers with markets. The focus of this paper is to review the experience with such linkages as promoted by different agencies in India, problems encountered therein, and lessons learnt. This paper examines the experiences in potato, tomato, grapes, mango, and fruits and vegetable (F&V) crops in general for different regions of India that have different institutional and market structures. The paper brings forth lessons for leveraging resources of the state, the private sector, and other development agencies, and for making use of mechanisms like contract farming. The paper concludes with lessons for policy and interventions to create more effective market linkage-building for quality production and better livelihoods.

Prashar S.,Indian Institute of Management IIM | Sai Vijay T.,Indian Institute of Management IIM | Parsad C.,Indian Institute of Management IIM
International Journal of e-Business Research | Year: 2015

The increased use of smartphones and tablets, along with advanced security features being offered by the online retailers are adding strength to e-commerce industry. Growing at an astonishing rate at 85%, as against 65% growth of regular shopping over the previous year, internet retailing in India touched US $10.672 billion in 2013, making it one of the most anticipated destinations for national and multinational online retailers. Several web portals are looking to capture a share of this huge market. This study gains importance as Indian arms of multinational online selling companies like Amazon and eBay are fighting various home-grown players like Snapdeal, Flipkart and many more. The objective of this paper is to identify and rank the factors that influence the selection of web portal among online shoppers in India. Exploratory study was conducted to identify various precursors of web site selection for online shopping. Twenty-four variables identified from this study were used to create a structured questionnaire. This questionnaire was then administered among 203 shoppers in India using convenience sampling. To determine the factors that influence the selection of web portals. Principal Component Analysis with Varimax Rotation was used. The study condensed the comprehensive set of twenty-four variables into six factors that have a direct influence on consumers' choice of online buying website. These were transaction security, augmented benefits, user experience, cognitive stimuli, personalized assurance and web atmospherics. This is against the general perception that shoppers prefer the web portals with best user experience and attractive web atmospherics. The online buying population of the world's third largest economy selects the portals based on the primary motive of security in a transaction. Adding to the existing knowledge on shoppers' selection of online buying portals, the study reveals the prevalence of a multitude of antecedent factors and distinct patterns with respect to constituents of these factors. Findings of this research may be used as guidelines for the development of multi-dimensional strategic framework by online retailing firms. Copyright © 2015, IGI Global.

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