DocumentCode :
3434278
Title :
Asymptotic analysis of max-min weighted SINR in multiuser downlink
Author :
Yichao Huang ; Chee Wei Tan ; Rao, Bhaskar
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California San Diego, La Jolla, CA, USA
fYear :
2012
fDate :
21-23 March 2012
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we study the problem of jointly optimizing the beamformer and the power in a multiuser downlink system wherein the number of transmit antennas and the number of users grow asymptotically large with a bounded ratio. The max-min weighted SINR problem with a weighted sum power constraint is considered. Techniques developed from random matrix theory are employed to derive asymptotically optimal solutions that only rely on statistical channel information and can be further leveraged to design the asymptotically optimal beamformers in a non-iterative manner. Moreover, by using nonlinear Perron-Frobenius theory and random matrix theory, an effective uplink system and an effective downlink system are proposed to characterize and interpret the asymptotically optimal solutions.
Keywords :
array signal processing; matrix algebra; statistical analysis; transmitting antennas; asymptotic analysis; asymptotically optimal beamformers; asymptotically optimal solutions; bounded ratio; effective downlink system; effective uplink system; max-min weighted SINR problem; multiuser downlink system; nonlinear Perron-Frobenius theory; random matrix theory; statistical channel information; transmit antennas; weighted sum power constraint; Algorithm design and analysis; Array signal processing; Downlink; Interference; Signal to noise ratio; Vectors; Power control; asymptotic analysis; beamforming; effective downlink; effective uplink; nonlinear Perron-Frobenius theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Sciences and Systems (CISS), 2012 46th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4673-3139-5
Electronic_ISBN :
978-1-4673-3138-8
Type :
conf
DOI :
10.1109/CISS.2012.6310750
Filename :
6310750
Link To Document :
بازگشت