Hierarchical Precoding in a Realistic Ultradense Heterogeneous Environment Exceeding the Degrees of Freedom

• Published in: International journal of antennas and propagation Vol. 2016; no. 2016; pp. 1 - 11
• Main Authors: Thiele, Lars, Hassan, Khaled, Kurras, Martin, Shehata, Mohamed
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2016; Hindawi Limited
• Subjects: Algorithms; Alignment; Degrees of freedom; Efficiency; Interference; Mathematical analysis; Mean square errors; Spectra; Studies; User requirements; Wireless communications; Wireless networks

Cell densification is a widely used approach to increase the spectral efficiency per area of cellular networks. Such Ultradense Networks (UDNs) consisting of small cells are often coordinated by macro base stations (BSs). With universal frequency reuse interference from the macro BS limits the syste...