Coordinating multiple antenna cellular networks to achieve enormous spectral efficiency

2006 ◽  
Vol 153 (4) ◽  
pp. 548 ◽  
Author(s):  
G.J. Foschini ◽  
K. Karakayali ◽  
R.A. Valenzuela
Keyword(s):  
Cellular Networks ◽  
Spectral Efficiency ◽  
Multiple Antenna

scholarly journals Antenna Combining for Interference Limited MIMO Cellular Networks

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4210
Author(s):  
Tae-Kyoung Kim
Keyword(s):  
Cellular Networks ◽  
Spectral Efficiency ◽  
Optimal Number ◽  
Base Stations ◽  
Multiple Antenna ◽  
Spherical Cap ◽  
Downlink Transmission ◽  
Partial Channel ◽  
Inter Cell Interference ◽  
Spatial Division Multiplexing

This paper considers a downlink cellular network where multi-antenna base stations (BSs) simultaneously serve their associated multi-antenna users. Each BS is distributed according to a homogeneous Poisson point process and uses zero-forcing beamforming for spatial division multiplexing with partial channel state information (CSI). During downlink transmission, each user combines the multiple antenna outputs and quantizes the CSI to feed back to its associated BS. Specifically, this paper focuses on antenna combining at the receiver. Conventional quantization-based combining (QBC) effectively reduces the quantization error; however, inter-cell interference in the cellular networks degrades the QBC gain. This degradation is analyzed using a spherical-cap approximation of vector quantization (SCVQ). From the SCVQ, the ergodic spectral efficiency and the optimal number of feedback bits are investigated, and it is shown that the QBC degrades the gain of the effective channel. To address this problem, an optimization solution is proposed that selects the antenna combining to maximize the spectral efficiency. The solution is also derived by considering the expected beamforming vectors of other cells. It is demonstrated by simulation that the proposed solution outperforms the conventional methods.

On the Spectral Efficiency of Multiuser Scheduling in RF-Powered Uplink Cellular Networks

2015 ◽  
Vol 14 (7) ◽  
pp. 3586-3600 ◽  
Author(s):  
Hina Tabassum ◽  
Ekram Hossain ◽  
Md. Jahangir Hossain ◽  
Dong In Kim
Keyword(s):  
Cellular Networks ◽  
Spectral Efficiency ◽  
Multiuser Scheduling

Cooperative Multiplexing: Toward Higher Spectral Efficiency in Multiple-Antenna Relay Networks

2009 ◽  
Vol 55 (9) ◽  
pp. 3909-3926 ◽  
Author(s):  
Yijia Fan ◽  
Chao Wang ◽  
H.V. Poor ◽  
J.S. Thompson
Keyword(s):  
Spectral Efficiency ◽  
Relay Networks ◽  
Multiple Antenna

Adaptive mode switching in correlated multiple antenna cellular networks

2009 ◽  
Vol 11 (3) ◽  
pp. 279-286 ◽  
Author(s):  
Chulhan Lee ◽  
Chan-Byoung Chae ◽  
Sriram Vishwanath ◽  
Robert W. Heath
Keyword(s):  
Cellular Networks ◽  
Mode Switching ◽  
Multiple Antenna
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