Title :
Power minimization in cooperative MIMO-OFDM systems with user fairness constraints
Author :
Chih-yu Hsu ; Phee Lep Yeoh ; Krongold, Brian S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
We propose a new resource allocation algorithm to support user fairness for downlink coordinated multipoint (CoMP) transmission with joint processing in multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The proposed algorithm utilizes successive convex approximation (SCA) to dynamically allocate the transmit powers between multiple CoMP base stations transmitting to multiple co-channel user terminals (UTs). The aim is to minimize the total transmit power subject to per-antenna power and per-UT rate constraints. Simulation results compare our SCA-based algorithm with iterative waterfilling.
Keywords :
MIMO communication; OFDM modulation; cooperative communication; iterative methods; resource allocation; SCA-based algorithm; UT; cooperative MIMO-OFDM systems; downlink coordinated multipoint transmission; iterative waterfilling; multiple CoMP base stations; multiple cochannel user terminals; multiuser multiple-input multiple-output systems; orthogonal frequency-division multiplexing systems; power minimization; resource allocation algorithm; successive convex approximation; user fairness constraints; Approximation methods; Interference; Noise; OFDM; Optimization; Transmitting antennas;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/WCNC.2015.7127451
