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|title: ||QoS-based multiuser scheduling in MIMO systems|
|authors: ||Alexiou, A.|
|issue date: ||2005|
|abstract: ||Packet scheduling techniques exploiting
multiuser diversity have been proposed in order to improve the throughput of high speed packet systems.
However, the use of techniques that take the scheduling decisions based only on the channel conditions, may fail to provide the desired QoS, as the maximum allowable
delay is an important parameter, and therefore algorithms aiming at providing QoS should combine QoS related parameters with the channel conditions. In this paper we consider two algorithms that address this
issue. One algorithm has been developed  to improve
the opportunistic beamforming technique by tying the sequence of radiation patterns with the waiting times of the served mobiles, while the other weights the waiting times and channel reliability to schedule the packets
while using beamforming to spatially reuse the radio resources in a CDMA scheme. We show through simulations that such schemes lead to reduced probability of excess delay while keeping a high throughput.|
|publisher version/DOI: ||http://dx.doi.org/10.1109/PIMRC.2005.1651560|
|source: ||PIMRC 2005: 16th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications|
|appears in collections||DETI - Comunicações|
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