Scheduling algorithm with power Allocation for random unitary beamforming

Yuki Tsuchiya, Tomoaki Ohtsuki, Toshinobu Kaneko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Random unitary beamforming is one of the schemes reducing the amount of feedback information in multiuser diversity techniques with multiple-antenna downlink transmission. In Multiple-Input Multiple-Output (MIMO) systems, throughput performance is greatly improved using AMC (Adaptive Modulation and Coding). Throughput performance is also improved by allocating power among streams appropriately. In random unitary beamforming, transmitter has only partial channel state information (CSI) of each receiver. Thus, it is difficult for random unitary beamforming to use conventional power allocation methods that use full CSI at all the receivers. In this paper, we propose a new scheduling algorithm with power allocation for downlink random unitary beamforming that improves throughput performance without full CSI. We provide numerical results of the proposed scheduling algorithm and compare them to those of the conventional random unitary beamforming scheduling algorithm.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Pages1668-1672
Number of pages5
DOIs
Publication statusPublished - 2007
Event2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring - Dublin, Ireland
Duration: 2007 Apr 222007 Apr 25

Other

Other2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
CountryIreland
CityDublin
Period07/4/2207/4/25

Fingerprint

Beamforming
Scheduling algorithms
Channel state information
Throughput
Adaptive modulation
Transmitters
Antennas
Feedback

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Tsuchiya, Y., Ohtsuki, T., & Kaneko, T. (2007). Scheduling algorithm with power Allocation for random unitary beamforming. In IEEE Vehicular Technology Conference (pp. 1668-1672). [4212775] https://doi.org/10.1109/VETECS.2007.347

Scheduling algorithm with power Allocation for random unitary beamforming. / Tsuchiya, Yuki; Ohtsuki, Tomoaki; Kaneko, Toshinobu.

IEEE Vehicular Technology Conference. 2007. p. 1668-1672 4212775.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tsuchiya, Y, Ohtsuki, T & Kaneko, T 2007, Scheduling algorithm with power Allocation for random unitary beamforming. in IEEE Vehicular Technology Conference., 4212775, pp. 1668-1672, 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring, Dublin, Ireland, 07/4/22. https://doi.org/10.1109/VETECS.2007.347
Tsuchiya Y, Ohtsuki T, Kaneko T. Scheduling algorithm with power Allocation for random unitary beamforming. In IEEE Vehicular Technology Conference. 2007. p. 1668-1672. 4212775 https://doi.org/10.1109/VETECS.2007.347
Tsuchiya, Yuki ; Ohtsuki, Tomoaki ; Kaneko, Toshinobu. / Scheduling algorithm with power Allocation for random unitary beamforming. IEEE Vehicular Technology Conference. 2007. pp. 1668-1672
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