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The lifetime of machine to machine (M2M) communication networks plays significant impact on system performance and user quality of service (QoS). To increase network lifetime, efficient resource allocation schemes can be applied. In this paper, we study the network lifetime maximization problem of an M2M communication network consisting one base station (BS) and a number of machine type communications...
In a cognitive relay network (CRN) consisting of multiple pairs of PUs and CUs, the resource allocation issues, specifically, the spectrum and power allocation and relay selection for secondary users (SUs) have to be considered to support efficient spectrum sharing among primary users (PUs) and SUs and providing quality of service (QoS) guarantees for both PUs and SUs. In this paper, we address the...
In this paper, an energy-efficient subchannel and power allocation scheme for a downlink marco-femto heterogeneous network is proposed. The optimization problem which maximizes the energy efficiency of all the FBSs subject to resource allocation constraints is formulated. To solve the formulated NP hard problem, we first apply clustering algorithm, which groups FBSs with interference being lower than...
In two-tier macro-femto heterogeneous networks, optimal spectrum and power resource allocation are important issues for achieving high efficient resource utilization and guaranteeing continuously increasing wireless accessing requirements. In this paper, an energy-efficient optimal joint power and spectrum allocation algorithm for marco-femto heterogeneous network is proposed. Through formulating...
Wireless Body Area Networks (WBANs) are made up of many tiny physiological sensors implanted in/on the human body that communicate with a coordinator. In the case that multiple WBANs coexist, the signal interference between neighboring WBANs pose challenges and difficulties on resource allocation and service Quality of Service (QoS) guarantee. In this paper, we propose a power allocation algorithm...
Under the background of TDD mode and LTE-Advanced scene, in this paper, we combine physical network coding with relay technology in order to make physical network coding-decode and forward (PNC-DF) together with physical network coding-amplify and forward (PNC-AF) transfer mode can be used to improve network throughput by using interference. Because of the ability to listen to the multi-user relay...
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