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Linear Precoding for Downlink Network MIMO Systems

Sadeghzadeh Nokhodberiz, Seyedmehdi
http://rave.ohiolink.edu/etdc/view?acc_num=akron1364828568

Abstract Details

2013, Master of Science, University of Akron, Electrical Engineering.
Modern wireless transceivers use multiple transmit and/or receive antennas, higher order modulation and large bandwidth to satisfy high data rate requirements of voice, data and multimedia applications. As wireless systems become more complex, the need to make wireless transceivers more efficient, compact and cost effective becomes challenging. Attempt to design an effective cellular network has been receiving lots of attention and demand to serve more users in the network is increasing. Supporting more users cannot be achieved easily mainly due to multi-user interference. Cell collaboration, also known as downlink network MIMO, has been proven to suppress the adverse effects of inter-cell interference (ICI), and as a result, to improve the performance of cell edge users. Beamforming, also known as linear precoding, is a possible transmission strategy to reduce the interference in such networks, and thereby improve spectrum utilization. In this thesis, we propose three novel clustered linear precoding schemes applicable to network MIMO systems for different scenarios to enhance the quality of service and the edge user throughput. First, we assume there is full channel state information (CSI) available at the transmitter side, and using the concept of signal-to-leakage ratio (SLR), we develop a linear precoding scheme to increase the spectral efficiency. In the second part, we assume partial CSI at the transmitters, and design linear precoders with optimal power control that improve the sum-rate. In the third part of this thesis, we consider a precoder design when there is no CSI available at the transmitters. Finally, a comparison amongst these schemes is provided through numerical simulation.
Hamid Reza Bahrami, Dr. (Advisor)
Nghi Tran, Dr. (Committee Member)
Arjuna Madanayake, Dr. (Committee Member)
72 p.
Electrical Engineering
Network MIMO; coordinated multi-point; precoding; block diagonalization; null space

Recommended Citations

Citations

  • Sadeghzadeh Nokhodberiz, S. (2013). Linear Precoding for Downlink Network MIMO Systems [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1364828568

    APA Style (7th edition)

  • Sadeghzadeh Nokhodberiz, Seyedmehdi. Linear Precoding for Downlink Network MIMO Systems. 2013. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1364828568.

    MLA Style (8th edition)

  • Sadeghzadeh Nokhodberiz, Seyedmehdi. "Linear Precoding for Downlink Network MIMO Systems." Master's thesis, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1364828568

    Chicago Manual of Style (17th edition)

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© 2013, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.