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Real-time implementation of cross-layer optimization. Multi-antenna high speed uplink packet access
|IEEE Signal Processing Society:|
IEEE International Conference on Acoustics, Speech, and Signal Processing 2005. Proceedings. Vol.3: Audio and electroacoustics. Signal processing for communications : May 18 - 23, 2005, Pennsylvania Convention Center/Marriott Hotel, Philadelphia, Pennsylvania, USA
Piscataway, NJ: IEEE Operations Center, 2005
|International Conference on Acoustics, Speech, and Signal Processing (ICASSP) <2005, Philadelphia/Pa.>|
| Conference Paper|
|Fraunhofer HHI ()|
| indoor radio; optimisation; packet radio networks; quality of service; radio access networks; scheduling|
We present a multi-antenna real-time implementation of a cross-layer uplink scheduler based on a recently developed framework. We outline the theory behind the stability-optimal scheduler, which achieves the entire stability region of the multiple access channel. We discuss the trade-off between theoretical optimality and real-time operation under real-world constraints, which leads to the development of an efficient fair scheduler. Finally, we evaluate the performance of the fair scheduler in experimental measurements (on state-of-the-art hardware) in a typical office scenario, which shows an increase in spectral efficiency and the possibility to guarantee a certain link quality of service threshold.