AG Kommunikationstheorie

Thema:

Design and Performance Evaluation of Radio Resource Management in OFDMA Networks

Abstract:

Inter-cell interference is of great interest and one of the essential issues for wireless operators who want to provide full coverage within their service area and guarantee a certain Quality of Service (QoS) to all users. In this thesis the resource allocation problem in an OFDMA based multi-cell network is formulated. Since no algorithm with polynomial running time exists due to non-linearity and combinatorial nature of underlying problem we adopted a heuristic approach with low computational cost and acceptable performance gain. We address specifically sharing available radio resources among users in terms of bandwidth allocation in order to suppress inter-cell interference. Cell assignment and power allocation may be incorporated easily. The performance of the proposed schemes was evaluated by simulation properly aligned with 3GPP LTE network.



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