An Adaptive Power and Bit Allocation Algorithm for Multiple User MIMO OFDM System Employing Zero-Forcing Multi-user Detection

UTSePress Research/Manakin Repository

Search UTSePress Research


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Uthansakul, Peerapong. en_AU
dc.contributor.author Bialkowski, Marek E. en_AU
dc.date.accessioned 2007-03-12T22:05:39Z
dc.date.accessioned 2012-12-15T02:29:41Z
dc.date.available 2007-03-12T22:05:39Z
dc.date.available 2012-12-15T02:29:41Z
dc.date.issued 2007-03-12T22:05:39Z
dc.identifier.uri http://hdl.handle.net/2100/112
dc.identifier.uri http://hdl.handle.net/10453/19645
dc.description.abstract This paper describes an adaptive algorithm for power and bit allocations in a multiple user Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO OFDM) system operating in a frequency selective fading channel. The zero forcing (ZF) technique is applied to accomplish multi user detection (MUD). The proposed adaptive algorithm employs a Lagrange multiplier method, which provides an optimal solution for power and bit allocations in one step. This is of considerable advantage in comparison with alternative algorithms, such as the greedy algorithm, that require time-consuming iterative procedures. The simulation results for both perfect and partial channel state information (CSI) available to transmitter show that the algorithm operates successfully in multiple user access scenarios without scarifying power and diversity gain. en_AU
dc.format.extent 451616 bytes
dc.format.mimetype application/pdf
dc.language.iso en_AU
dc.title An Adaptive Power and Bit Allocation Algorithm for Multiple User MIMO OFDM System Employing Zero-Forcing Multi-user Detection en_AU


Files in this item

This item appears in the following Collection(s)

Show simple item record