Stochastic user behaviour modelling and network simulation for resource management in cooperation with mobile telecommunications and broadcast networks

The latest generations of telecommunications networks have been designed to deliver higher data rates than widely used second generation telecommunications networks, providing flexible communication capabilities that can deliver high quality video images. However, these new generations of telecommunications networks are interference limited, impairing their performance in cases of heavy traffic and high usage. This limits the services offered by a telecommunications network operator to those that the operator is confident their network can meet the demand for. One way to lift this constraint would be for the mobile telecommunications network operator to obtain the cooperation of a broadcast network operator so that during periods when the demand for the service is too high for the telecommunications network to meet, the service can be transferred to the broadcast network. In the United Kingdom the most recent telecommunications networks on the market are third generation UMTS networks while the terrestrial digital broadcast networks are DVB-T networks. This paper proposes a way for UMTS network operators to forecast the traffic associated with high demand services intended to be deployed on the UMTS network and when demand requires to transfer it to a cooperating DVB-T network. The paper aims to justify to UMTS network operators the use of a DVB-T network as a support for a UMTS network by clearly showing how using a DVB-T network to support it can increase the revenue generated by their network

Mobile Audiovisual Terminal: System Design and Subjective Testing in DECT and UMTS networks

It is anticipated that there will shortly be a requirement for multimedia terminals that operate via mobile communications systems. This paper presents a functional specification for such a terminal operating at 32 kb/s in a digital European cordless telecommunications (DECT) and universal mobile telecommunications system (UMTS) radio network. A terminal has been built, based on a PC with digital signal processor (DSP) boards for audio and video coding and decoding. Speech coding is by a phonetically driven code-excited linear prediction (CELP) speech coder and video coding by a block-oriented hybrid discrete cosine transform (DCT) coder. Separate channel coding is provided for the audio and video data. The paper describes the techniques used for audio and video coding, channel coding, and synchronization. Methods of subjective testing in a DECT network and in a UMTS network are also described. These consisted of subjective tests of first impressions of the mobile audio–visual terminal (MAVT) quality, interactive tests, and the completion of an exit questionnaire. The test results showed that the quality of the audio was sufficiently good for comprehension and the video was sufficiently good for following and repeating simple mechanical tasks. However, the quality of the MAVT was not good enough for general use where high-quality audio and video was needed, especially when transmission was in a noisy radio environment

Factors Affecting the Planning and Implementation of Emerging Telecommunications Technologies

This paper outlines an ongoing empirical research project to identify a set of factors affecting the proliferation of emerging telecommunications technologies in organizations. Organizations (educational institutions, businesses, etc.) need to understand telecommunications technology from both planning and implementation perspectives to achieve quality high performance networking in the future. The research will consist of four stages: formulating a conceptual framework, gathering data from organizations using computer networks, analyzing the data to determine trends and opportunities in telecommunications deployment, and determining an optimal strategy for organizational migration to an emerging telecommunications technology

Trends in Infrastructure in Latin America, 1980-2001

There is widespread concern across Latin America that the provision of infrastructure services has suffered as a consequence of the retrenchment of the public sector and the insufficient response of the private sector to the opening up of infrastructure industries to private participation in most countries. This paper documents the recent trends in infrastructure stocks and infrastructure investment in major Latin American economies. Using an updated dataset constructed for this task, the paper describes the evolution of the quantity and quality of infrastructure assets – power, transport, telecommunications– as well as the investment expenditures of the public and private sectors. The paper finds that Latin America lags behind the international norm in terms of infrastructure quantity and quality, and there is little evidence that the gap may be closing – except in the telecommunications sector. Furthermore, overall infrastructure investment has fallen, as a combined result of the retrenchment of public investment and the limited response of the private sector, which has been mostly confined to the telecommunications industry. However, there is considerable disparity across countries. On the whole the data show that the countries most successful in attracting large volumes of private investment (Chile, Colombia, Bolivia) are precisely those where public investment has remained high.

An evaluation of total quality management practices on business performance of the Nigerian telecommunications sector: a case study of MTN Nigeria Limited

This study examines the effects of The Total Quality Management practices on Business Performance of the Nigerian Telecommunications Sector. A review of literatures on TQM shows that no study has been carried out on its application in the Nigerian Telecommunication sector hence the need for this research. To assess the situation One hundred and fifty (150) questionnaires were administered to customers of MTN Limited within the Lagos environ. These customers were randomly selected from five (5) different MTN customer care centres within the five divisions of Lagos State. These divisions include Epe, Ikorodu, Lagos Island, Lagos Mainland and Badagry. Thirty (30) questionnaires were administered at each centre. Fifty (50) questionnaires were also administered to employees of MTN and a total of twenty (20) questionnaires were administered to top management in the same organizations. The data collected were analyzed using descriptive statistics and regression analysis. Our finding revealed that 90.7% of the changes that occurred in employees’ satisfaction could be traced to the policy and commitment of top management. It also shows that 69.4% of the changes in customer satisfaction could be attributed to continuous training in quality. The study recommended among other things the training of telecommunications personnel on Total Quality Management practices and the adoption of alternative renewable sources of energy like solar to address their energy problems

Trends in infrastructure in Latin America, 1980-2001

There is widespread concern across Latin America that the provision of infrastructure services has suffered as a consequence of the retrenchment of the public sector and the insufficient response of the private sector to the opening up of infrastructure industries to private participation in most countries. The authors document the recent trends in infrastructure stocks and infrastructure investment in major Latin American economies. Using an updated dataset constructed for this task, the authors describe the evolution of the quantity and quality of infrastructure assets-power, transport, and telecommunications-as well as the investment expenditures of the public and private sectors. They find that Latin America lags behind the international norm in terms of infrastructure quantity and quality, and there is little evidence that the gap may be closing-except in the telecommunications sector. Furthermore, overall infrastructure investment has fallen, as a combined result of the retrenchment of public investment and the limited response of the private sector, which has been mostly confined to the telecommunications industry. However, there is considerable disparity across countries. On the whole the data show that the countriesmost successful in attracting large volumes of private investment (Bolivia, Chile, and Colombia) are precisely those where public investment has remained high.Public Sector Economics&Finance,Economic Theory&Research,Environmental Economics&Policies,Decentralization,Agricultural Research,Public Sector Economics&Finance,Banks&Banking Reform,Economic Theory&Research,Urban Services to the Poor,Environmental Economics&Policies

The Economic Costs and Benefits of Self-Managed Teams Among Skilled Technicians

This paper estimates the economic costs and benefits of implementing teams among highly-skilled technicians in a large regional telecommunications company. It matches individual survey and objective performance data for 230 employees in matched pairs of traditionally-supervised and self-managed groups. Multivariate regressions with appropriate controls show that teams do the work of supervisors in 60-70% less time, reducing indirect labor costs by 75 percent per team. Objective measures of quality and labor productivity are unaffected. Team members receive additional overtime pay that represents a 4-5 percent annual wage premium, which may be viewed alternatively as a share in the productivity gains associated with innovation or as a premium for learning skills

The Role of Innovation Management Model to Improve Service Quality for Telecommunications Industry in Indonesia

Telecommunications industry in Indonesia has rapidly increased. An intense competition of telecommunication operators has  often neglecting quality of services which must be provided but instead focussing on offering cheap telecommunications costs. Every year average revenue per unit (ARPU) tends to decline, which result innovations, increase service quality, and prevent the customers switch to another operator. This research was using Soft Systems Methodology (SSM) approach based on philosophy of Critical Systems Thinking (CST), and Strategic Assumption Surface Engineering and Testing (SAST). Data flow diagram (DFD) were used as tools for designing management model innovation for telecommunication companies in Indonesia. The result obtained an incentives to innovators which is an important factor for Analytical Hierarchy Process (AHP). The further innovation model for telecommunication in Indonesia is producing innovations which ultimately  improve customer service quality. Keywords: Quality Service, Innovation Management, Analytical Hierarchy Process, Soft Systems Methodolog