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The increasing demand for high bandwidth in cellular wireless networks led to a dramatic increase in the number of deployed LTE femtocell base stations (FBS) in recent years. While the energy consumed by a single FBS is relatively negligible, the collective energy footprint of all FBSs deployed by an operator turns out to be huge. Energy-efficient protocols are needed thus to balance the trade-off...
When allocating network bandwidth to multiple classes of applications in inter-data center communication, coordination always yields a better utilization of the backbone network. Yet, it often comes at a prohibitively heavy computational and communication cost, making it thus far not a practically viable approach. SDN helped in bridging the communication cost gap by enabling centralized control, and...
In this paper, we present a distributed file system with storage QoS provision for cloud computing. The objective is to maximize the aggregated disk bandwidth utilization with the assurance of allocated disk bandwidth for each data transfer. First, we implement a distributed file system based on the ECNP model, which avoids matchmaker overloading and the lack of up-to-date information in the original...
In the LTE networks, the multicast services can be transmitted by single frequency network (SFN) mode and point-to-multipoint (PTM) mode, and the unicast services are delivered with point-to-point (PTP) mode. To avoid the network congestion in the LTE networks with the multicast and unicast mixed services, an analytic hierarchy process (AHP) in load balancing is proposed to minimize the demanded radio...
To maximize the utilization of system resources with satisfying diverse quality of service (QoS) requirements, a novel multiple utility factors-based parallel (MUFP) packet scheduling algorithm is proposed for the broadcast base station (BBS) and cell base station (CBS) mixed mode of broadband wireless multimedia (BWM) systems. MUFP takes into consideration QoS requirements, queue dynamics and channel...
To guarantee the quality of service (QoS) of broadcast services in broadband wireless multimedia (BWM) systems, a novel seamless broadcast cell asymmetrical handover (BCAH) algorithm is proposed. BCAH adopts the asymmetrical handover between the broadcast base station (BBS) with point-to-multipoint (PTM) transmission and the cell base station (CBS) with point-to-point (PTP) transmission. The handover...
To maximize the utilization of system resources and satisfy the requirements for quality of service (QoS), the radio resource joint management (RRJM) scheme is proposed for the broadcast base station (BBS) and cell base station (CBS) mixed mode of broadband wireless multimedia (BWM) system. The RRJM includes multiple utility factors-based packet scheduling (MUFPS) and broadcast cell seamless handover...
A simulated annealing (SA) algorithm is proposed for the transmission mode selection of multicast services in LTE networks. The multicast services can be transmitted by single frequency network (SFN) mode and point-to-multipoint (PTM) mode, and the unicast services are delivered with point-to-point (PTP) mode. To avoid the network congestion in LTE networks with the multicast and unicast mixed services,...
Path quality of service is one of the key factors affecting routing performance in ad hoc networks. In order to improve multipath routing performance, we present an ant colony optimization and ad-hoc on-demand multipath distance vector (AOMDV) based routing protocol (ACO-AOMDV) for ad hoc networks. In ACO-AOMDV, ant packets deposit simulated pheromone as a function of multiple parameters corresponding...
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