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This paper mostly concerned with the various packet size effect on performance of erasure correctable codes for cognitive radio. Among these types of codes we tried to simulate Raptor code to discover its suitability for assumed erasure channel in cognitive radio. The main target after supporting the functionality of coding-based cognitive radio would be finding the appropriate packet length that...
Small cell base stations (BSs) that form an overlay layer on the existing macrocell network offer tremendous potential in terms of satisfying high data rate traffic requirements and enabling breakthrough services. However; small cell deployments can pose negative energy-efficiency implications if not equipped with advanced power saving mechanisms. In this work, we address this issue and propose algorithms...
Based on a survey on the technical challenges to the future radio access network beyond LTA-Advanced, which should offer very high average areal throughput to support a vast amount of data traffic and user density with energy-efficient operation, we discuss the potential techniques and propose an overall framework.
We consider the problem of multicasting from a single source to a set of destinations. We assume that the source cannot reach the destinations directly, but must forward its traffic through a set of relays. Under the performance objective of maximizing the common amount of information (number of bits) that the source sends to all destinations per Joule of the total energy spent, we wish to obtain...
Recent research studies on green cellular networking indicate that most of the traffic is serviced by a few cell sites while the rest of the cells remain under-utilized, contributing to significant energy consumption levels. Previous proposals suggest turning off Base Stations (BSs) during low utilization periods to save energy by allowing neighboring cells to increase their coverage to provide the...
Future cellular mobile radio networks will exhibit a much more dense base station deployment than 2nd or 3rd generation communications systems, particularly with regard to traffic coverage. Hence, a significant increase in power consumption of cellular networks can be expected. In order to counter this trend, energy efficiency of such networks should be increased considerably. Concerning energy efficiency,...
The femtocell concept is an emerging technology for deploying the next generation of the wireless networks, aiming at indoor coverage enhancement, increasing capacity and offloading the overlay macrocell traffic. One of the main challenges in short range femtocell networks is how to (re)configure the Home Node Bs (HNBs) in an autonomous manner so as to manage interference and diminish the energy consumption...
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