Name
Title | ||
|---|---|---|
Managing the interference structure of MIMO HSDPA: a multi-user interference aware MMSE receiver with moderate complexity |
Abstract | ||
|---|---|---|
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 self-and 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. Our proposed solution can be interpreted as a multi-user extension of the classical MMSE equalizer for HSDPA systems without decoding the undesired users, resulting in only slightly increased complexity. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TWC.2010.04.090612 | IEEE Transactions on Wireless Communications |
Keywords | Field | DocType |
hsdpa multi-user transmission,transmit antenna array,multi-user interference,hsdpa system,moderate complexity,classical mmse equalizer,interference structure,aware mmse receiver,efficient interference suppression,multi-user intra-cell interference,intra-cell interference,multi-user extension,mimo hsdpa,self-and other-user interference,spread spectrum communication,minimum mean square error,wideband code division multiple access,throughput,w cdma,physical layer,interference,system modeling,blind source separation,hsdpa,antenna array,frequency,txaa,mimo | Telecommunications,Single antenna interference cancellation,Minimum mean square error,Multiuser detection,Antenna array,MIMO,Electronic engineering,Real-time computing,Interference (wave propagation),Code division multiple access,Mathematics,Spread spectrum | Journal |
Volume | Issue | ISSN |
9 | 4 | 1536-1276 |
Citations | PageRank | References |
14 | 0.67 | 12 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Martin Wrulich | 1 | 557 | 49.93 |
| Christian Mehlführer | 2 | 244 | 17.83 |
| Markus Rupp | 3 | 1970 | 219.14 |