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In this paper, we study the strategic coexistence of macro and pico cells and investigate a utility based resource allocation technique for heterogeneous networks. Aiming at finding an objective driven allocation of resources, we focus on time domain inter-cell interference coordination (ICIC) techniques. Macro and pico cells optimally select their almost blank subframe (ABS) muting rate and cell...
Self-Organizing Networks (SONs) have been introduced in LTE in order to configure and optimize the network in an autonomic manner. However, in some situations the reconfiguration of the entire network is not the most cost-efficient solution. Consequently, Opportunistic Networks have been introduced as operator governed, coordinated extensions of the infrastructure that are created dynamically where...
This paper proposes a novel approach, based on game theory, for radio resource allocation in the downlink of cellular networks using Orthogonal Frequency Division Multiple Access. The reference technology is the Long Term Evolution of the 3GPP UTRAN. The main contribution is to identify a model for the allocation objectives, and how to approach them in a tunable manner. The resource management issue...
This paper provides a thorough analysis of the frequency resource allocation among multi-layers of the intra-RAT (Radio Access Technology) heterogeneous network. From the aspect of the spectrum utilization efficiency, the co-channel heterogeneous network provides higher system capacity, but its control channel coverage and quality is much worse than the orthogonal frequency allocation between macro...
In current cellular networks base stations (BSs) usually perform independent scheduling without coordinating the resource allocation among different cells. This, however, often leads to high interference levels in cellular networks operating with universal frequency reuse, such as the 3GPP UTRAN Long Term Evolution (LTE). Coordinated scheduling between different BSs may mitigate this problem by taking...
In this paper, we propose distributed dynamic resource allocation schemes for future cellular networks to enable efficient utilization of the whole available frequency spectrum. Our algorithms are simple, so that fast resource allocation decisions can be made at the base stations. To enable coordination between base stations, our schemes require inter-base-station signaling of system state information...
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