Expanding cellular coverage via cell-edge deployment in heterogeneous networks: spectral efficiency and backhaul power consumption perspectives

Heterogeneous small-cell networks (HetNets) are considered to be a standard part of future mobile networks where operator/consumer deployed small-cells, such as femtocells, relays, and distributed antennas (DAs), complement the existing macrocell infrastructure. This article proposes the need-oriented deployment of smallcells and device-to-device (D2D) communication around the edge of the macrocell such that the small-cell base stations (SBSs) and D2D communication serve the cell-edge mobile users, thereby expanding the network coverage and capacity. In this context, we present competitive network configurations, namely, femto-on-edge, DA-onedge, relay-on-edge, and D2D-communication on- edge, where femto base stations, DA elements, relay base stations, and D2D communication, respectively, are deployed around the edge of the macrocell. The proposed deployments ensure performance gains in the network in terms of spectral efficiency and power consumption by facilitating the cell-edge mobile users with small-cells and D2D communication. In order to calibrate the impact of power consumption on system performance and network topology, this article discusses the detailed breakdown of the end-to-end power consumption, which includes backhaul, access, and aggregation network power consumptions. Several comparative simulation results quantify the improvements in spectral efficiency and power consumption of the D2D-communication-onedge configuration to establish a greener network over the other competitive configurations

Analytical Study of Environmental Impacts and Their Effects on Groundwater Hydrology

The hydrology of the groundwater is not just the science of subsurface water but also encompasses the rock strata and structure matrix in which it is contained. It also deals with the natural and man-made activities that affect the quality and quantity of subsurface water and physiology, geology, and minerology of the rock structure as well as the effects of the environment, climate, and other physical and natural forces trying to alter the subsurface water source in either way. Strategies for management and upkeep of groundwater as a resource are also discussed for sustainable and equitable usage by all stakeholders

Corporate Governance for Banks in Pakistan: Recent Developments and Regional Comparisons

The emerging economies in the South Asian region have embarked on a bold reform process to develop the banking sector. This development has improved the transparency and accountability of the banking sector because these countries focused on ‘best practice’ corporate governance for banks. In view of a rapidly developing market with a slow pace of information dissemination, adverse selection and moral hazard problems are likely to be on the rise and may need a mechanism to train and discipline bank management. It was, therefore timely for the central banks in the region to introduce a ‘best practice’ for the banking system as a whole. This study provides a survey of recent developments in corporate governance of the banking sector in Pakistan and a comparison of similar developments in two other regional economies, namely, India and Bangladesh. In addition to a theoretical discussion on this issue, we also provide an overview of the banking sector restructuring and highlighting important features of the codes of corporate governance established by central banks in the sample countries. In conclusion, we present a comparison of the major differences in these measures across countries and comment on the pace of these developments.Corporate Governance, Banks, Pakistan

Processing and application of polyolefin plastics

This thesis describes the manufacturing, processing and application of polyolefin thermoplastics. Polyolefins have become one of the most important kinds of plastics. Polyolefin resin represents about one third of all plastics sold and its application for films and containers dominate the packaging industry. The objective of this thesis is to present the various processing methods and application of polyolefin thermoplastics. Polyolefin is produced by several different processes. Conventional low density polyethylene is made by polymerizing ethylene at high pressure and high temperatures while high density polyethylene is polymerized at relatively low pressure and low temperatures. Generally all polyolefin possess excellent electrical properties, excellent resistance to water and moisture and good resistance to chemicals. They are translucent, light weight, tough and flexible material. This combination of properties makes them suitable for film, blow, and injection molded parts, flexible sheet and extruded profiles, and tubing

Corporate Governance for Banks in Pakistan : Recent Developments and Regional Comparisons

The emerging economies in the South Asian region have embarked on a bold reform process to develop the banking sector. This development has improved the transparency and accountability of the banking sector because these countries focused on best practice corporate governance for banks. In view of a rapidly developing market with a slow pace of information dissemination, adverse selection and moral hazard problems are likely to be on the rise and may need a mechanism to train and discipline bank management. It was, therefore timely for the central banks in the region to introduce a best practice for the banking system as a whole. This study provides a survey of recent developments in corporate governance of the banking sector in Pakistan and a comparison of similar developments in two other regional economies, namely, India and Bangladesh. In addition to a theoretical discussion on this issue, we also provide an overview of the banking sector restructuring and highlighting important features of the codes of corporate governance established by central banks in the sample countries. In conclusion, we present a comparison of the major differences in these measures across countries and comment on the pace of these developments.Banking, Corporate governance, banking sector restructuring