Title :
Number of Antenna Considerations and Power Allocation in MIMO Broadcast Channels
Author :
Falahati, Abolfazl ; Bayat, Mehdi
Author_Institution :
Dept. of Electron. & Commun. Eng., Iran Univ. of Sci. & Technol., Tehran
Abstract :
Based on recent results on sum rate capacity calculation of Gaussian multi-input multi-output broadcast channels when using dirty-paper coding, a method for selection number of transmit and receive antennas and also transmit power is devised. The algorithm is developed such that the number of receive antennas and also transmit power is minimized under the condition of a given sum rate capacity of MIMO BC. The proposed method is fast and generic and benefits from convergence behavior of water-filling algorithm in various channel matrix conditions.
Keywords :
Gaussian channels; MIMO communication; antenna arrays; broadcast channels; encoding; matrix algebra; receiving antennas; transmitting antennas; Gaussian multi-input multi-output broadcast channels; MIMO broadcast channels; channel matrix conditions; dirty-paper coding; receive antenna; sum rate capacity calculation; transmit antenna; water-filling algorithm; AWGN; Broadcast technology; Convergence; Downlink; Iterative algorithms; MIMO; Power engineering and energy; Radio broadcasting; Receiving antennas; Transmitting antennas; Broadcast channel; MIMO; dirty-paper coding; multiple access channel (MAC);
Conference_Titel :
Advanced Communication Technology, The 9th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-131-8
DOI :
10.1109/ICACT.2007.358393
