OFDMA capacity analysis and subcarrier allocation in MIMO Channels

Konferenz: European Wireless 2008 - 14th European Wireless Conference
22.06.2008 - 25.06.2008 in Prague, Czech Republic

Tagungsband: European Wireless 2008

Seiten: 5Sprache: EnglischTyp: PDF

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Li, Hongxiang; Kim, Younsun; Liu, Hui (Department of Electrical Engineering, University of Washington, Seattle, Washington)

This paper studies the performance of orthogonal frequency division multiple access (OFDMA) in the multiuser multicarrier MIMO (M3) system for both uplink (UL) and downlink (DL) channels.We numerically quantify the performance gap between OFDMA and the optimal multicarrier solution. We also derive simple but near optimal algorithms to solve the generic OFDMA resource allocation problem in different scenarios.