| The capacity of future mobile communication networks will extremely arise along with the fast development of the multi-media and the big data.The network capacity of the mobile network trends to be 1000 times compares to current wireless networks in2020.The increasingly congestion of the restricted radio spectrum should concerned by providing high-speed stable services.Recently,as the great development on the self-interference cancellation technology,the in band full-duplex(IBFD)communication turns to become practicable.Compared to the conventional half-duplex(HD)communications,the IBFD communication performs numerous advantages,such as doubling the spectrum efficiency theoretically.Thus,the IBFD is a potential technology to improve the performance in future wireless networks.However,the transmit antenna and the receive antenna are coupled in real IBFD-based communication systems,which will impact the performance of IBFD networks.Consider the complexity of the FD(Fullduplex)transceiver where many issues such as imperfect synchronization and non-linear electrical components lead to the non-ideal self-interference cancellation.Besides,considering the impact of many disturbing factors such as distribution of users,the requirement of services,the variation of wireless channels,the IBFD communication is generally seemed as an opportunity communication which coexists with other duplex modes.Thus it is hard to achieve expect FD performance gain in IBFD based networks.This thesis is base on the resource management of the IBFD network,target on reducing the interference of networks,increasing the throughput of networks,decreasing the cost of the network operation.The major content of this thesis focuses on the following four parts:1)The interference cancellation and management of the FD network;2)The radio resource management of the IBFD-based cellular network;3)The resource management of the FD network facing to the integration of the heterogenous resources;4)The resource management of the FD network facing to the wireless virtualization.Current investigations of the interference are generally focused on the cancellation of the self-interference or decreasing the co-interference from the perspective of scheduling and management of the power and spectrum.The joint investigation of the self-interference and the co-interference is still missing.This thesis first introduces the successive interference cancellation(Suc-IC)in the FD wireless networks to eliminate the impact of the co-channel interference(CCI)from other devices.Then,the successful transmission probability is analyzed under the assumption of the residual self-interference and the residual CCI.Consider the interference is affected by the variation of network environment such as wireless channel variation,the mobility of users and so on,the effect of multiple disturbance parameters on successful transmission probability is analyzed.An energy-driven robust power allocation algorithm is proposed to fulfill the high reliability and low energy cost requirements of the 5G mobile network,which reduces the energy cost and promote the reliability of FD communications while guarantee the QoS.Then,this thesis studies the radio resource management of the IBFD-based cellular network.Be affected by the requirement of service,the distribution of users and the variation of wireless channels,the IBFD communication is generally seemed as an opportunity communication which coexists with other duplex modes.Thus it is hard to achieve spectrum efficiency gain in practical IBFD-based networks.Current research generally resolve the radio resource management from the perspective of the capacity and the spectrum efficiency.However,this thesis constructs the communications resources under the consideration of both asymmetry and insulation between uplink and downlink.An joint power and sub-channel allocation problem is formulated by setting the network throughput as the object function.An iterative joint power and sub-channel allocation algorithm is proposed,which can improve the spectrum efficiency of the FD networks while guarantee the quality of service(QoS).For extensive MIMO applications in 5G,this thesis combines the MIMO and the IBFD to study the spatial resource management of the IBFD-based cellular network.Based on the spatial resource splitting self-interference cancellation scheme,a spatial resource scheduling strategy combined with IBFD and MIMO is proposed to further improve the spectrum efficiency of cellular networks.After that,this thesis studies the integration of heterogeneous resources in the FD wireless network.Conventional internet service are based on the connection of the client and the server,while the future mobile service faces to the searching and delivery of the content,where decreasing the transmission delay of the popular content is a key research objective.By sinking the information centric network architecture to the edge network to realize the edge caching can effectively reduce the service delay.Moreover,the access efficiency can be further increased by implementing the IBFD in local area because of the high spectrum efficiency.For decreasing the delay of achieving the popular content to fulfill the diversity service requirements in future wireless networks,a novel information-centric network framework is constructed based on the IBFD and the ICN.A distributed content caching and transmission strategy is proposed,which aims at promoting the cooperation between communication resources and distributed storage resources,and decreasing the network utility.Besides,this thesis studies the cooperation between communication and computing.A cooperative fog-cloud computing architecture is proposed based on the IBFD.A queueing model is introduced to model the massive access scenario,and the service outage probability and the ergodic computing capacity of the proposed cooperative fog-cloud computing architecture are analyzed.The proposed distributed content caching and transmission strategy can significantly improve the robustness of the network service.Finally,this thesis studies multi-dimension virtual resource management of the FDbased virtualized wireless network.Current studies generally focus on the abstraction of the spectrum and the infrastructures of the mobile network,which are lack of extending the virtual resources.Facing to the ubiquitous wireless networks in future,this thesis proposed an user virtualization transmission strategy based on the IBFD communications.This transmission strategy entrusts both the access and service capability to the mobile devices,which can extend the virtual resource pool of wireless networks.Moreover,the transmission strategy increases the flexibility of the network access which reduces the caching and delay compared to the conventional relay communications.Consider the mobile edge computing services in 5G mobile networks,a virtual resource management problem is formulated for the full-duplex virtualized network with user virtualization to maximize the total utility of the virtualized network operator.In order to reduce the signaling overhead caused of the increasing the dimension of the network resources,a distributed virtual resource allocation algorithm is proposed based on the alternating direction method of multipliers(ADMM).The proposed distributed virtual resource allocation algorithm can significantly reduce the signaling of the resource management of wireless networks and fast converge to the optimal value. |
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