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Flows in software defined networking (SDN) can pass through multiple domains having separate controllers. A domain is interpreted as part of the network topology under a SDN controller. This necessitates negotiation between various domains, to meet the QoS requirements of flows. These QoS negotiations may be static or dynamic. The SDN domains may be wired or wireless. Though, there have been efforts...
To achieve ever increasing demand for higher user throughput, 3rd Generation Partnership Project (3GPP) have introduced Carrier Aggregation (CA) feature in the Long-Term Evolution — Advanced (LTE-A) standard. Wherein, the CA feature widens the transmission bandwidth by aggregating multiple Component Carriers (CCs) to meet the demand for higher data rate. To the best of our knowledge, till now available...
Carrier Aggregation (CA) features will enhance Quality of Service (QoS) for the users as well as cell throughput of the LTE-Advanced (LTE-A) base-station (eNodeB). To deliver a high QoS for users, an eNodeB requires a well-designed and efficient CA enabled downlink scheduling algorithm. Enabling aggregation of multiple component carriers leads to huge power consumption compared with non-CA scenario...
An LTE-Advanced (LTE-A) Heterogeneous Network (HetNet) constitutes of a macro cell and small cells, where, the former acts as an overlay network and the latter as an underlay network. In HetNet, enabling Carrier Aggregation (CA) usually results in severe downlink interference at small cells from macro cell because of high powered transmissions from macro cell on over-lapping component carriers (co-channels)...
Users run multiple applications simultaneously on single mobile device (MD) like mobile phone, tablet etc.. Utility and importance of different applications are not same and relative value depends on individual user. But in Internet architecture, available bandwidth is shared by applications equally. In wireless connection, fluctuation of bandwidth is common event and all applications are affected...
Long Term Evolution-Advanced (LTE-A) is increasingly seen as a promising technology for serving Internet of Things (IoT) needs along with mobile user equipments (UEs), due to high data rate, low latency, priority services, etc. The major challenges of incorporating IoT devices into LTE-A are, a large number of IoT devices attempting to access the network in short time, their effect on existing UEs...
Nowadays QoS enabled real time services are demanding and dominating over Internet. However, providing end-to-end QoS requirement across Internet is still a challenge. With changing challenges and demands, service providers should be able to implement their strategic and business policies dynamically. Therefore current Internet architecture needs a change to support the present and future requirements,...
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