A Subcarrier Allocation Scheme for Uplink-OFDMA on Fast Fading Channels

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Inter-carrier interference (ICI) and multiuser interference (MUI) occur in an uplink orthogonal frequency division multiple access (OFDMA) system if a channel between a user and a base station is rapidly time-varying. Based on the successive interference cancelation (SIC), we propose a new subcarrier allocation algorithm using the convex programming, which minimizes the ICI and MUI smeared in the subcarriers allocated to the fast moving users. Simulation results show that the proposed subcarrier allocation provides the better bit error rate (BER) performance than other allocations in convolutional coded system using a SIC-aided detector.
Publisher
IET, IEEE VTS Chengdu Chapter
Issue Date
2012-11-12
Language
ENG
Citation

International Workshop on High Mobility Wireless Communications (HMWC 2012)

URI
http://hdl.handle.net/10203/173264
Appears in Collection
EE-Conference Papers(학술회의논문)

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