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2010

Managing the interference structure of MIMO HSDPA: a multi-user interference aware MMSE receiver with moderate complexity

11 years 13 hour ago
Managing the interference structure of MIMO HSDPA: a multi-user interference aware MMSE receiver with moderate complexity
It is known that Wideband Code-Division Multiple Access (W-CDMA) networks are limited by interference more than by any other single effect. Due to the frequency selectivity of the wireless channel, intra-cell interference composed of selfand other-user interference occurs. The intra-cell interference as a result of Transmit Antenna Array (TxAA) HSDPA multi-user transmissions, however, shows a special structure that can be exploited to allow for an efficient interference suppression. The contributions of this article are the following: we (a) propose a suitable system model to derive an intra-cell interference aware Minimum Mean Squared Error (MMSE) equalizer with moderate complexity and investigate its capabilities to suppress the multi-user intra-cell interference, (b) propose solutions to estimate the pre-coding state of the cell both with and without available training, and (c) investigate the resulting throughput performance with physical layer as well as system-level simulations. ...
Martin Wrulich, Christian Mehlführer, Markus
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TWC
Authors Martin Wrulich, Christian Mehlführer, Markus Rupp
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