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The inter-cell interference problem is a key issue in OFDMA-based mobile cellular networks. In order to deal with this problem, several flexible radio resource reuse schemes for the downlink are examined in this paper. The goal is to improve the cell edge throughput as well as the average cell throughput, compared to a network with frequency reuse factor 1.(More)
WINNER has been an ambitious research project aiming at identification and assessment of key technologies for Beyond 3G mobile systems. The WINNER mobile radio access network provides a system that is highly flexible and efficient and can provide a wide range of services to a multitude of users in many different environments. This paper provides a concise(More)
Adaptive networks are envisaged to play a significant part in the future, where the time and space variations in the traffic pattern will necessitate the ability to continuously amend the Radio Access Technologies' (RATs') operating parameters. Reconfiguration of communications systems is a facilitator towards this convergence and enables the dynamic(More)
The paper investigates the possibility for competing network operators to cooperate partially without operational information exchange and to share a block of UMTS carriers simultaneously to provide services. The performance of spectrum sharing in the worst case for sharing (equal capacity demands) is investigated for the downlink of the UMTS FDD system.(More)
WINNER is an ambitious research project aiming at identification, development and assessment of key technologies for IMT-Advanced mobile communication systems. WINNER has devised an OFDMA based system concept with excellent system level performance, for flexible deployments in a wide variety of operating conditions. The WINNER system provides a significant(More)