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Hassan Hamdoun, Pavel Loskot, Timothy O’Farrell, Jianhua He
Annals of Telecommunications – Annales des Télécommunications, Volume 67, April 2012
Abstract
The energy consumption and the energy efficiency have become very important issue in optimizing the current as well as in designing the future telecommunications networks. The energy and power metrics are being introduced in order to enable assessment and comparison of the energy consumption and power efficiency of the telecommunications networks and other transmission equipment. The standardization of the energy and power metrics is a significant ongoing activity aiming to define the baseline energy and power metrics for the telecommunications systems. This article provides an up-to-date overview of the energy and power metrics being proposed by the various standardization bodies and subsequently adopted worldwide by the equipment manufacturers and the network operators.
Biography:
Hassan Hamdoun is currently finishing his Ph.D. degree in Wireless Communications at Swansea University, United Kingdom. Prior to his studies in Swansea, Hassan received the B.Sc. (Hons) degree in Electrical Engineering from University of Khartoum in 2005, and the MSc (ENG) degree from the the University of Sheffield in computing and communications networks in 2009. From 2004 to 2006, he worked on setting up the first Sudanese Electronic Payment Network (SUDAPAN). He joined the largest mobile communication operator in Sudan as a radio engineer and a regional team leader for the EDGE and the 3G integration and implementation projects.
Hassan’s Ph.D. research was supported by the Green Radio Core 5 Research Program of the prestigious Virtual Centre of Excellence in Mobile & Personal Communications. The Green Radio project investigates the energy consumption and the energy efficiency of the wireless access networks with the aim for a 100 fold reduction of the energy consumption in order to address the challenges of the exponential traffic growth, raising fuel cost and the increasing carbon footprint (CO2 emissions). The Green Radio research considers heterogeneous network architectures, the advanced transmission techniques, and the base-station hardware design. The energy consumption is evaluated assuming the radio-frequency power as well as assuming the overhead power.
In addition to investigating the energy consumption metrics and models,and the relevant standardization activities in the wireless accessnetworks, Hassan’s research is focusing on the implementation aspects and evaluating the benefits of the distributed coding, network coding and fountain coding in the Long Term Evolution (LTE) and LTE-Advancedcellular systems under realistic constraints and assumptions. Specifically, he has shown that the medium access control (MAC) layer of the LTE protocol stack is well suited to incorporate the network coding and fountain coding schemes. These schemes outperform, under certain conditions, the standardized hybrid automatic repeat retransmissions (HARQ) schemes in terms of the energy consumption, the amount of radio resources used, and the transmission latency. The fountain coding implemented at the MAC layer of the LTE protocol stack is found to have number of benefits as well as performance gains compared to its originally intended implementation at the application layer.
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