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Mobility Robustness Optimization (MRO) is a use-case of Self-Organizing Networks (SON) for LTE that aims to optimize handover performance automatically. Conventional MRO algorithms tune handover parameters based on counts of handover failures and handover events. The algorithm requires many handovers per cell pair (e.g. 1000) to trigger a reliable adjustment. Thus it can result in a slow adaptation...
The success of communication service providers (CSPs) relies on efficient operational strategies for managing their networks, including the planning, optimisation and maintenance, in order to meet the desired Quality of Service (QoS), Quality of Experience (QoE) and business goals and requirements. Such business goals and requirements include, amongst others, the reduction of Operational and Capital...
This work analyses a multi-user relay network with orthogonal channel access using OFDMA. For the considered Multiple Access Relay Channel (MARC) the relay performs non-adaptive Decode & Forward (DF) with repetition coding. The objective of this paper is to find a resource allocation (subcarrier and power) which maximises the sum rate. Within this context, different algorithms are proposed which...
In this paper, we propose and analyse an adaptive algorithm for distributed beamforming in OFDM systems over time and frequency selective channel conditions. We discuss how the key parameters related to convergence speed of the algorithm can be optimized to suit networks with different degrees of transmitter mobility. We show that the proposed adaptive algorithm is beneficial when used in mobile conditions;...
This paper explores the balance between cooperation through relay nodes and aggregated interference generation in large decentralized wireless networks using decode-and-forward. The source nodes in the network are modeled using a marked Poisson process. We consider the case in which only a single randomly located relay is added to one source in the network and study the outage probability gains obtained...
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