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In this paper, we consider the scenario of the mobile network operator (MNO) incentivizing femtocell access points (FAPs) to form a shared network. We propose an incentive mechanism under which the licensed femtocell user (FU) of each FAP can use a portion of another FAP's spectrum resources when moving into that FAP's coverage. The FAPs are rewarded based on both the amount of provided resources...
In order to achieve higher bandwidth and higher throughput, the carrier aggregation (CA) technique has been adopted by the specifications of 3GPP Release 10 for Long Term Evolution (LTE) advanced systems, where the user equipment (UE) may operate over up to 5 component carriers (CCs). On the other hand, 3GPP specifications also define a mechanism named discontinuous reception (DRX) in order to save...
The concept of small cells such as femtocell has been regarded as a promising solution to achieve green communication and deal with the coverage hole and growth of traffic within macrocells. However, the unpredictable deployment pattern of such nodes makes static network planing impractical and the overlaying macrocell and femtocell tiers may suffer significant cross-tier interference from each other...
The video applications become popular with the development of the network. Because of the complexity of the network and real-time stream video on demand, the scheduling algorithm has great influence on the QoS. In this paper, a stream video scheduling algorithm based on QoS is proposed, associated the FEC and Kalman Filter theories. According to the status of the receiver, the sending rate is adapted...
The transmission of stream media over the Internet require a high bandwidth. While the best-effort network could not provide constant transmission speed. The proxy server (PS) is the nearest part of the Internet to the client. The proxy can cache the data, and release the load of the servers. So the proxies have great influence on the video QoS. Through the perfect algorithm, within the acceptable...
The proxy is one of the important parts of the Internet. The proxy can reduce the data flow and release the load of the servers. Because of the unpredictable problem of the network, the proxies have great influence on the video QoS. Through the perfect algorithm, within the acceptable scope, the proxy can improve the performance of the system. In the video service system, the proxy can improve the...
This paper presents a new QoS multicast routing algorithm TPMA for MPLS-TE. The algorithm first modifies the evolution equation to improve standard PSO, and then utilizes TS technique to realize the balance of global and local search, further combines Fitness function to enhanced the global search ability, simultaneously considers other QoS parameters. The main objective of TPMA is to build a QoS...
In the MPLS-based mobile IPv6 network, when mobile node performs handover, it needs to rebuild label switching path, which impacts the handover delay and causes packets loss. Reused parts of the path overcome the above reasons, which propose a cross-router (CR) algorithm. It modifies the label information base (LIB), that is, increases two fields: the mobile node address and the time counter. When...
K highest label path algorithm (KHLP) is presented for MPLS-TE. The algorithm first uses generalization of highest-label pre-flow-push algorithm to calculate K-shortest paths, then chooses the LSP in terms of the link criticality and the residual bandwidth, combines K value to give different links weight, further combines offline with online routing to reduce the computational complexity, simultaneously...
K paths ordering algorithm (KPOA) is presented for multi-protocol label switch traffic engineering. For optional paths of each ingress-egress pair, the algorithm used a learning mechanism, combined offline and online routing, and chose the LSP in terms of the residual bandwidth. The main objective of KPOA is to prevent the neglect of non-critical link which is important, and avoid choosing the overlong...
With the development of network technology, QoS routing algorithm based on MPLS traffic engineering becomes the focus of the information industry. An improved algorithm is proposed based on the known algorithms. For optional paths of each ingress-egress pair, the algorithm uses a learning mechanism, combines offline and online routing, and chooses the LSP in terms of the average expectation load and...
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