TY - GEN
T1 - Rate control for PSD limited multiple access systems through linear programming
AU - Leshem, Amir
AU - Zehavi, Ephraim
PY - 2011
Y1 - 2011
N2 - In this paper we discuss rate control for multiuser multi-carrier systems, where the transmitter has a single antenna and is subject to a PSD mask limitation while the receiver has multiple receive antennas. This case is typical in many systems, where each mobile unit has a single transmit stream, and its transmit PSD is limited by regulatory constraints. This scenario is also typical DSL upstream transmission with a vector receiver. In both scenarios we are given a vector of target rates determined by the network operator and we want to set up a transmission strategy for each user at each tone. We show that in this case the problem can be solved using linear programming, rather than general convex optimization. The proposed rate allocation technique has two important applications. First, it provides a computationally simple tool to evaluate the optimal performance of multiple access systems under various operator utility functions. Second, it can serve as a practical tool for rate control of multiple access OFDM systems.
AB - In this paper we discuss rate control for multiuser multi-carrier systems, where the transmitter has a single antenna and is subject to a PSD mask limitation while the receiver has multiple receive antennas. This case is typical in many systems, where each mobile unit has a single transmit stream, and its transmit PSD is limited by regulatory constraints. This scenario is also typical DSL upstream transmission with a vector receiver. In both scenarios we are given a vector of target rates determined by the network operator and we want to set up a transmission strategy for each user at each tone. We show that in this case the problem can be solved using linear programming, rather than general convex optimization. The proposed rate allocation technique has two important applications. First, it provides a computationally simple tool to evaluate the optimal performance of multiple access systems under various operator utility functions. Second, it can serve as a practical tool for rate control of multiple access OFDM systems.
KW - Power allocation
KW - multi-carrier systems
KW - rate control
UR - http://www.scopus.com/inward/record.url?scp=80051619033&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946707
DO - 10.1109/ICASSP.2011.5946707
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AN - SCOPUS:80051619033
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 3220
EP - 3223
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -