MIMO

Abstract In this survey, we will discuss about different cooperative communication schemes like Relay communication and Node cooperative system. Later on we will perform comparison between conventional communication system and cooperative relay scheme based on power efficiency. We will also discuss about various factors that will impact the efficiency of cooperative systems. We will conclude with applications of cooperative communication in LTE advanced. Cooperative communication Technological

Mobile Communication from 1G to 4G Ajit Singh Grewal GEORGE MASON UNIVERSITY Fairfax, Virginia, USA Abstract The evolution of mobile telephone system can be classified into different generation based on the level of maturity in technology. This classification does not depend on any standardized facts. The purpose of this paper is to provide the history of mobile communication and provide an overview of 4G and its features, architecture, key technologies and challenges. Introduction: From 1G (First

Orthogonal Frequency Division Multiplexing or OFDM is a modulation format that is being used for many of the latest wireless and telecommunications standards. OFDM has been adopted in the Wi-Fi arena where the standards like 802.11a, 802.11n, 802.11ac and more. It has also been chosen for the cellular telecommunications standard LTE / LTE-A, and in addition to this it has been adopted by other standards such as WiMAX and many more. Orthogonal frequency division multiplexing has also been adopted

study and evaluated the use of the sinuous antenna for wideband multiple-input multiple-output (MIMO) and diversity applications. They found that in addition to being extremely broadband the sinuous antennas are also very compact. In fact, they found that when placing dipoles on the same space required by the sinuous antennas, that the sinuous would reach much greater capacities for multimode-based MIMO systems. Edwards and Rebeiz2 utilized the sinuous antenna type placement on a silicon dielectric

In this paper, it gives description about 4G network, architecture and discuss about functions of each layer. It is evident that 4G technologies will expand on web-based communication around the world. 4G technology will allow for improved applications such as telemedicine that may save lives. It is a fully imp-based network and will improve data transfer dramatically. Signal disruptions will be minimal and downloads will be done in a matter of seconds, faster than ever before. Within few days 4G

Energy Efficient Architectures and Key Techniques to Enable Energy Efficient Wireless Network in green radio project Abstract: Technical innovations changed every day life as fast and profoundly as the massive use of personal mobile communications. With rapid increase of modern communications networks, problems like emission of CO2 and energy consumption has emerged which have a potential adverse impact upon the environment and their operating energy costs are also increasing. Since 2006, data traffic

The Release 10 of LTE is the version that is approved by the ITU-R as an IMT Advanced technology and so is called LTE-Advanced. Release 10 of the LTE that came out in March 2011 included carrier aggregation, enhanced downlink MIMO, uplink MIMO, enhanced ICIC and advanced relays. Following the Release 10 came the Release 11 that incorporated enhanced carrier aggregation and additional intra-band carrier aggregation. In 2008 the work associated with IMT-Advanced within the ITU-R circulated

5G - CHALLENGES First, this vision points towards a significantly increased (in comparison to earlier generations) set of stakeholders that 5G needs to accommodate when providing communication solutions. Examples of stakeholders are:- • Individual and communities of people. • SMEs, corporations, not-for-profit and social organizations. • Digital asset owners, such as public transport and utilities authorities and organisations. • Vertical sectors like energy, health, manufacturing, robotics,

University of Technology, Sydney 32702 Contemporary Telecommunications The evolution how 3G to 4G technologies Ming H. Zhao (10810164) University of Technology, Sydney minghui.zhao@student.uts.edu.au Lecturer: Gay Valerie 13th September, 2010 1. Introduction Since contemporary communication came into daily life, people always keep seeking unrestricted communication at all time. Mobile telecommunication satisfied people's demand with the first generation (1G) and the second generation (2G). In the

Improvement on coexistence of LTE Macro / Femtocell’s Adaptive Interference Draining using Rectangular Antenna’s ABSTRACT The concentration of small cells in a network increases; measures need to be taken in order to ensure that the QoS is not degraded for the macrocell users as well as its nearest small cells. Interference managing in Heterogeneous Network in critical position .This is characteristically attained completed bright resource allocation schemes for small cells. In Heterogeneous